solve the equation 7-y-y=-1

Answers

Answer 1

Answer: y=4

Step-by-step explanation:

7-y-y=-1

Combine like terms

7-2y=-1

Subtract seven on both sides of the equation

7-7-2y=-1-7

-2y=-8

Divide both sides by -2

-2y/-2=-8/-2

y=4

Check the answer by plugging 4 back in the equation for y.

7-4-4=3-4=-1

The final answer is y=4

Answer 2
7-2y = -1
-2y =1 - 7
-2y = 8
Y = 4

Related Questions

Reggie knows how to make 5 different entrees, 4 dif-
ferent side dishes, and 6 different desserts. How many
distinct complete meals, each consisting of an entrée, a
side dish, and a dessert, can Reggie make?
F. 16
G. 26
H. 72
J. 120
K. 144​

Answers

J. 120 is your answer

Reggie can make 120 distinct complete meals, each consisting of an entrée, a  side dish, and a dessert.

This is a rather simple and straightforward question.

If Reggie can make

5 Entrees

4 Side dishes

6 Desserts,

Then she can make 5 × 4 × 6 different distinct dishes.

5 × 4 × 6 = 120

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[{8 + 113 • 5] - 8 + 11

Answers

Answer:

[8 + 113 • 5] - 8 + 11 =

[8 + 565] - 8 + 11 =

573 - 8 + 11 = 576

help on question 32 please

Answers

Answer:

90

Step-by-step explanation:

The mean is measured as

mean = [tex]\frac{score}{count}[/tex]

After 5 tests the mean is 84, that is

[tex]\frac{score}{5}[/tex] = 84 ( multiply both sides by 5 )

score = 420

let the sixth test score be x, then

[tex]\frac{420+x}{6}[/tex] = 85 ( multiply both sides by 6 )

420 + x = 510 ( subtract 420 from both sides )

x = 90

Require to score 90 on the sixth test

Multiply the binomials (3x-5) (x-10)
Helpp

Answers

Answer: The answer would be 3x^2-35x+50

Answer:

3x^2-35x+50 is the answer

Step-by-step explanation:

If you use the FOIL method this will be a breeze.

How much interest is earned on an investment of $12,000 at 2.9% compounded daily for eight years

Answers

Answer:

$3,113,34

Step-by-step explanation:

The formula for calculating compound interest is

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Where

A=the future total value, i.e, the money you will have after t years.

P=the initial deposit.

r=the annual interest rate.

n=the number of times that interest is compounded per year.

t=the number of years the money is saved.

In our case

A is unknown and we will have to calculate it with the formula.

P=$12,000

r=2.9%=0.029

n=365 because the interest is compounded daily and there are 365 days in a year

t=8 years

Applying the formula we get

[tex]A=12,000(1+\frac{0.029}{365})^{365\times8}[/tex]

[tex]A=12,000(1+\frac{0.029}{365})^{2,920}[/tex]

[tex]A=12,000(1.000079)^{2,920}[/tex]

So A=15,113.336

This is the amount of money you would have after 8 years.

Subtracting the initial deposit from this amount we obtain the interest earned I

I=15,113.336-12,000=3,113.336

Rounded to the nearest hundreth

I=$3,113,30

Line segment XY was used to draw a copy of ABC.XY is 3.5 centimeters long. What is the length of
AA' + BB'+CC'?​

Answers

3.5(3)=10.5 this i the answer. I had this for hw.

The length of  AA' + BB' + CC' using the segment length 3.5 cm gives 10.5 cm.

let segment XY used to draw a copy of ABC.

So, if AA', BB', and CC' represent the corresponding sides of the copy triangle A'B'C', their lengths are:

Two Triangle that are translated to each other are equidistant from each point to the original point.

Now, AA' = BB' = CC' = XY = 3.5 cm

So, AA' + BB' + CC'

= 3.5  + 3.5 + 3.5

= 10.5

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A fraction that is terminating decimal between 1.25 and 1.5

Answers

Answer:(1.25+1.50)/2

=2.75/2

=1.375

Step-by-step explanation:

(1.25+1.50)/2

=2.75/2

=1.375

Answer:

[tex]\frac{7}{5}, \frac{13}{10}, \frac{135}{100}= 1.35[/tex]

Step-by-step explanation:

There are numerous of fraction whose terminating decimal value lies between 1.25 and 1.5

Some of them are:

[tex]\dfrac{7}{5}=1.4, \\\dfrac{13}{10} = 1.3\\ \dfrac{135}{100}= 1.35, etc.[/tex]

All the above fraction has terminating decimal value.

Further, terminating decimal means the decimal whose value is non-repeating and values after decimal place is end after some places of decimal.

0.5,7/16,0.75,19/48 order least to greatest

Answers

Answer:

19/48, 7/16, 0.5, 0.75

Step-by-step explanation:

Lauren visits the park every 3 days and goes to the library every 10 days. If Lauren gets to do them both. On the same day again

Answers

Answer:

On the 30th day

Step-by-step explanation:

What are the factors of 10?

10,20,30,40,50

What are the factors of 3?

3,6,9,12,15,18,21,24,27,30

Which numbers are the same on both?

(Hint which is the first number on both factors :))

Final answer:

Lauren will visit both the park and the library on the same day again after 30 days. This is because the least common multiple (LCM) of 3 and 10 is 30.

Explanation:

The subject of this question is Mathematics, particularly dealing with the concept of least common multiple (LCM). The question is asking when will Lauren visit the park and the library on the same day again. Given that Lauren goes to the park every 3 days and the library every 10 days, the day when she'll do both again is the least common multiple of 3 and 10.

The least common multiple (LCM) is the smallest multiple that is exactly divisible by every member of a set of numbers. In this case, we need to determine the LCM of 3 and 10. The multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ... The multiples of 10 are 10, 20, 30, 40, .... As we can see, the smallest number that appears in both lists is 30. Therefore, Lauren will visit both the park and library on the same day again after 30 days.

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What is the answer to this

Answers

Answer: The answer would be 2 1/2

Step-by-step explanation:

first you convert the mixed number into an improper fraction which would be 25/8

then you multiply 4/5 with 25/8

which equals 100/40

finally you simplify and you get 2 1/2

Answer:

so first you would make 3 1/8 into a number like the frist one then change them into common denominators then multilpy.I hope it helps

solve for x.
3x = 6x - 2

Answers

Answer:

[tex]x = \frac{2}{3} [/tex]

Step-by-step explanation:

3x=6x-2

Subtract '3x' from both sides

0=3x-2

Add '2' to both sides

2=3x

Divide by 3

x=2/3

If you need the answer in decimal form divide 2 by 3

The value of x is 2/3.

What is equation?

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S (left hand side = right hand side).

Parts of an Equation

There are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators.

Given:

3x = 6x - 2

3x-6x= -2

-3x= -2

x= -2/-3

x= 2/3

Hence, the value of x is 2/3

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Find the least
common denominator
3/5+4/7​

Answers

Answer:

35

Step-by-step explanation:

5*1=5  5*2=10  5*3=15  5*4=20 5*5=25  5*6=30  5*7=357*1=7  7*2=14  7*3=21  7*4=28  7*5=35

Solve for x. + 9 = 30 x = 34 x = 44 x = 24 x = 18

Answers

Answer:

11 =x

Step-by-step explanation:

A point, beginning at (0,0), undergoes the following composition of translation. Write an ordered pair for the points final position. T<5,-7> and then T<-6,2>

Answers

Answer:

(-1,-5)

Step-by-step explanation:

Starting at (0,0), we perform the first translation:

T<5,-7> implies that we move the point 5 units to the right (in the x (horizontal) direction), and 7 units DOWN in the y <vertical) direction.

From there we do the second translation: T<-6,2>

which means: 6 units to the left (in the horizontal direction) which takes us to  "-1" for the x value, and 2 units up (vertical) which takes us to -5 for the y value.

Therefore the new location is (-1,-5)

Seventy-five beans were equally divided into five pots. How many beans were in each pot?

Answers

Hey!

-----------------------------------

Solution:

75 beans ÷ 5 pots = 15

-----------------------------------

Answer:

15 beans are in each pot!

-----------------------------------

Hope This Helped! Good Luck!

Answer:

15

Step-by-step explanation:

if 75 beans is equally divided into 5 pots, divide 75 by 5.

Sarah is making strings of beads in the first string she uses 3 beads and she triples the number of beads in each of the next strings identify the number of beads she uses in 5 string

Answers

Answer:

She uses 729 beads for 5 strings.

Step-by-step explanation:

1 string :  3 × 3 = 9 beads

2 string : 9 × 3 = 27 beads

3 string : 27× 3 = 81  beads

4 string : 81 × 3 = 243 beads

5 string :  243 × 3 = 729 beads

Answer:729

Step-by-step explanation:

1) 3×3=9

2) 9×3=27

3) 27×3=81

4) 81×3=243

5) 243×3=729

Which inequality represents all the solutions of 8(6x − 7) < 5(9x − 4)?

Answers

Answer:

The inequality that represents the solution of 8(6x − 7) < 5(9x − 4) is x < 12.

Step-by-step explanation:

Given 8(6x − 7) < 5(9x − 4)⇒ 48x - 56 < 45x - 20⇒ 48x - 45x < -20 + 56

⇒3x< 36 ⇒ x<36/3 ⇒ x<12.

Inequalities help us to compare two unequal expressions. The correct option is B.

What are inequalities?

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.

The given inequality can be solved as,

8(6x − 7) < 5(9x − 4)

48x − 56 < 45x − 20

48x − 45x < 56 − 20

3x < 36

x < 36/3

x < 12

Hence, the inequality that represents all the solutions of 8(6x − 7) < 5(9x − 4) is x < 12.

The complete question is:

Which inequality represents all the solutions of 8(6x − 7) < 5(9x − 4)? A. x > 12 B. x < 12 C. x > 20 D. x < 20

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Give an equation for a line perpendicular to the line y=0. Is there more than one such line? Explain.

Answers

Check the picture below.

sure, since y = 0 is a line, in essence the x-axis really, that goes to infinity, so we can draw an infinite amount of perpendicular lines on it all the way.

Final answer:

The equation for a line perpendicular to the line y=0 is x=a, where a is the x-coordinate of the point where the line intersects the x-axis. There are infinitely many lines that are perpendicular to the line y=0. For example, the line x=3.

Explanation:

The equation for a line perpendicular to the line y=0 is simply the equation for a vertical line passing through any point on the x-axis. A vertical line is defined by the equation x = a, where a is the x-coordinate of the point where the line intersects the x-axis.

Since the line y=0 is also the x-axis, any vertical line passing through a point on the x-axis will be perpendicular to it. Therefore, there are infinitely many lines that are perpendicular to the line y=0.

For example, the equation for a line perpendicular to y=0 passing through the point (3,0) would be x=3.

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referred to as Check
a. 3x + 7 + -x-1​

Answers

Answer:

2x+6

Step-by-step explanation:

you would get 2x+6 because you collect like terms and 3x minus 1x is 2x its minus because a negative is subtracting. and then 7 minus 1 is 6

A roll of material is (x + 2) metres wide. Annie buys (x + 3) metres of the material and Bronwyn buys 5 metres of the material.
a) Write an expression, in terms of x, for the area of each piece of material purchased.
b) If Annie has bought more material than Bronwyn, write an expression for how much more she has than Bronwyn.
c) Factorise and simplify this expression.
d) Find the width of the material if Annie has 5m^2 more than Bronwyn.
e) How much material does each person have? Explain.

Answers

The problem involves determining the area of material purchased, comparing the quantities, and solving for the width given certain conditions. After setting up and solving the equations, it was found that the width of the material is 3 metres and the total amounts of material purchased by Annie and Bronwyn are 4 and 15 square metres respectively.

To solve the problems related to the area of material purchased by Annie and Bronwyn, follow these steps:

Area of material: Given the width of the material is (x + 2) metres, Annie buys (x + 3) metres long and Bronwyn buys 5 metres long. The area for each piece of material purchased is the product of the width and length. So, Annie's material area is (x + 2)(x + 3) square metres, and Bronwyn's material area is 5(x + 2) square metres.

More material: To express how much more material Annie has than Bronwyn, subtract Bronwyn's area from Annie's area, which gives us ((x + 2)(x + 3) - 5(x + 2)) square metres.

Factorisation: The expression for how much more material Annie has than Bronwyn can be factorized as (x + 2)(x - 2) square metres after simplifying.

Width of material: If Annie has 5 square metres more material than Bronwyn, we solve the equation (x + 2)(x - 2) = 5. Solving this quadratic equation gives x = 1, the width of the material is therefore 3 metres.

Total material: With x = 1, Annie purchases 4 square metres (since 3 x 1 + 3) and Bronwyn purchases 15 square metres (since 5 x 3). So, Annie has 4 square metres of material and Bronwyn has 15 square metres.

Jayla has 1.36 meters of red ribbon and 0.9 meter of blue ribbon. How much ribbon does she have in all?

Answers

Answer:

She has 2.26 ribbons.

Step-by-step explanation:

add 1.36+0.9=2.26.

Answer:

2.26

Step-by-step explanation:

1.36+ 0.9

what is the decimal equivalent to 8/3

a 2.6
b 0.375
c2.6666666666666
d8.3

Answers

Answer:

C. 2.6666666666666

Step-by-step explanation:

You can estimate.

We know that 3 * 2 = 6.

So, we know that The decimal is at least 2.

We can cancel out B and D.

2.6 * 3 = 7.18

So, we can cancel out A.

Just to make sure, let's try C.

2.6666666666666 * 3 = 7.999999...

This is the closest answer to 8.

So, our answer is C.

C. 2.6666666666666

when full the gas tank of a car holds 15 gallons. it now contains 12 gallons. what percent represents how full the tank is?

Answers

Hello!

to find the percent of a whole, use this equation here:

(remaining) / (total) = X

X * 100 = %

in this case:

12 / 15 = 0.8

0.8 * 100 = 80

your answer is 80%

I hope this helps, and have a nice day!

Help please fast
Question 17

Answers

Answer:

I think the answer may be 12 minutes

Answer:

I think it is 12 mins

A ladder leaning against the side of a building touches the building at a point 12 meters from the ground. If the foot of the ladder is 18 meters from the base of the building, what is the slope of the ladder?

Answers

Answer:

The slope of the ladder to the building is 2/3

Step-by-step explanation:

* Lets explain how to find the the slope of the ladder

- A ladder leaning against the side of a building touches the building

 at a point 12 meters from the ground

* That means the height of the ladder (h) from the ground is 12 m

- The foot of the ladder is 18 meters from the base of the building

* That means the horizontal distance (d) on the ground between the

  ladder and the building is 18 m

- The slope of the ladder (m) , the height of the ladder (h) and the

  horizontal distance on the ground from the base of the ladder to

  the base of the building (d) can form a right triangle

∵ The slope of the ladder = the vertical distance/horizontal distance

∵ The vertical distance h is 12 meters

∵ the horizontal distance d is 18 meters

∴ The slope of the ladder [tex]m=\frac{12}{18}=\frac{2}{3}[/tex]

The slope of the ladder to the building is 2/3

Answer:

2/3

Step-by-step explanation:

Its just as easy as it looks. Its 12/18, or Rise 12 and Run 18.

Solving would get you 2/3, so your slope is 2/3

2⋅(36⋅3−5) . evaluate

Answers

Answer:

[tex]206[/tex]

[tex]2 \times |108 - 5|=\\ 2 \times 103 = \\ 206 [/tex]

Answer: 206

Answer:

Answer is = 6

Step-by-step explanation:

there is a 6 degree drop in temperature over the past hour. If it is 55 degrees now, what was the temperature an hour ago?

Answers

Answer:

61

Step-by-step explanation:

if it dropped 6 degrees, you would add 6 to the current temperature to get 61 (55+6=61)

Answer:

61 degrees

Step-by-step explanation:

it is 55 degrees now. it had dropped 6 degrees in an hour. since it went down and subtracted 6 degrees, we would have to do the other order of operation which in this case is addition. 55 plus 6 is 61. ( message me if you need more help)

solve for x: x² - 14x + 49/x² - 49 = 3/17​

Answers

Answer:

x = 10

Step-by-step explanation:

Begin by factorising the numerator/ denominator of the left side

x² - 14x + 49 = (x - 7)² ← perfect square

x² - 49 = (x - 7)(x + 7) ← difference of squares

Thus left side becomes

[tex]\frac{(x-7)^2}{(x-7)(x+7)}[/tex] → x ≠ ± 7

Cancel (x - 7) on numerator/denominator, leaving

[tex]\frac{x-7}{x+7}[/tex]

Returning to the equation, that is

[tex]\frac{x-7}{x+7}[/tex] = [tex]\frac{3}{17}[/tex] ( cross- multiply )

17(x - 7) = 3(x + 7) ← distribute both sides

17x - 119 = 3x + 21 ( subtract 3x from both sides )

14x - 119 = 21 ( add 119 to both sides )

14x = 140 ( divide both sides by 14 )

x = 10

Lines p, q, and r all pass through point (-3,4). Line p has slope 4 and is perpendicular to line q. Line r passes through Quadrants 1 and Quadrants 2 only. Write an equation for each line. Then graph the three lines on the same coordinate plane.

Answers

Final answer:

This response provides the equations for three lines that all pass through the point (-3, 4). Line p's equation is identified as y = 4x + 16, the equation for perpendicular line q is y = -1/4x + 5.75, and the equation for the horizontal line r, which only traverses Quadrants 1 and 2, is y = 4.

Explanation:

The subject of your question is related to

Algebra of Straight Lines

, specifically, writing equations of lines that pass through a specific point (-3,4), and have certain slopes or orientations.

Let's start by examining line p which passes through the point (-3,4) and has a slope of 4. Using the point slope form of linear equation, we have y - y1 = m(x - x1). Substituting the given values, we get y - 4 = 4(x + 3) which simplifies to y = 4x + 16. This is the equation for line p.

The line q is perpendicular to line p, so its slope is the negative reciprocal of the slope of p, which is -1/4. Using point slope form of linear equation and substitifying the slope and point, we get y - 4 = -1/4(x + 3) which simplifies to y = -1/4x + 5.75. This is the equation for line q.

The line r is a little bit tricky since it's only mentioned to pass through Quadrants 1 and 2. This implies that the slope of r is 0, making line r horizontal. Because it passes through y=4, its equation is simply y = 4.

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A store sells 4 cans of fruit cocktail for $10.What is the price of 7 cans of fruit cocktail?

Answers

Answer:

17.5

Step-by-step explanation:

so 4 cans is 2.5$ each so i did 2.5 times 7 to see how much it would be for 7 cans

Final answer:

To find the cost of 7 cans of fruit cocktails, you first determine the price per can at $2.50 by dividing the cost for 4 cans ($10) by 4. Multiplying the price per can by 7 gives the total cost, which is $17.50.

Explanation:

To find the price of 7 cans of fruit cocktails when 4 cans are sold for $10, we need to calculate the price per can and then multiply by the desired number of cans.

Step-by-step calculation:

First, determine the price per can by dividing the total price by the number of cans: 4 cans for $10 results in $10 ÷ 4 = $2.50 per can.Next, multiply the price per can by the number of cans desired: 7 cans × $2.50 per can = $17.50.

Therefore, 7 cans of fruit cocktails will cost $17.50.

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