Practice solving multistep equations.
ASSIGNMENT
Solve 3[-x + (2x + 1)] = x - 1.
DONE
Answer:
2(x+2)
Step-by-step explanation:
3[-x+(2x+1)]=x-1
3[-x+2x+1]=x-1
3[x+1]=x-1
3x+3=x-1
3x-x+3+1
2x+4
2(x+2)
a bowl of candies contains the following makeup of colors: 4 red, 2 yellow, 5 green, and 1 purple. taina is selecting a candy at random from this bowl. she does not like the color red. what is the probability that taina does NOT select a red candy
Candies
4 red
2 yellow
5 green
1 purple
- Taina doesn't like red candies.
4/4+2+5+1 = 4/12
4/12 is the probability Taina will get a red candy, but we're looking for the opposite.
12/12 - 4/12 = 8/12 = 2/3
The probability Taina will not select a red candy is 2/3.
(PLEASE HELP ME) !!! (picture is shown!) Plane W and Plane J intersect at which of the following?
Answer:
it looks like it intersects at line t.
Step-by-step explanation:
I mean, just look at the picture. where does plane W and plane J touch? its not line p because that line is intersecting plane W and plane B, its not line a because that's intersecting planes V and J, and then its not B because they obviously do intersect.
I hope this helps you out and have a wonderful day!
Which sequence of transformations performed on triangle J could result in similar triangle J'?
A. Rotate triangle J 180 about the origin, then reflect across y-axis.
B. Translate triangle J to the right and then down.
C. Reflect triangle J across the y-axis, then across the x-axis.
D. Reflect triangle J across the x-axis, then across the y-axis.
(its not A.)
Answer:
C. Reflect triangle J across the y-axis, then across the x-axis.
Answer:
I think the answer is B but i might be wrong
The measure of an angle is 114º. Calculate the measure of its supplementary angle.
Answer:
66°
Step-by-step explanation:
Supplementary angles sum to 180°, thus
supplementary angle = 180° - 114° = 66°
find the slope of a line given two or more points (2,4)(5,3)
Answer:
-1/3 (can u plz give me the brainliest answer???)
Step-by-step explanation:
change in y over the change in x. (or rise over run).
-1/3
Have a nice day!!!!!!!!!!!
KA
Answer:
-1/3
Step-by-step explanation:
You would use rise over run:
4-3/2-5
That equals -1/3.
What is -5x + 15 = 35 - 10x
Answer:
x = 4
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-5*x+15-(35-10*x)=0
Pull out like factors :
5x - 20 = 5 • (x - 4)
_________________________________________
Solve : 5 = 0
This equation has no solution.
A a non-zero constant never equals zero.
_________________________________________
Solve : x-4 = 0
Add 4 to both sides of the equation :
x = 4
Hey!
-------------------------------------------------
Solution:
-5x + 15 = 35 - 10x
~Subtract 15 to both sides
-5x + 15 - 15 = 35 - 10x - 15
~Simplify
-5x = 20 - 10x
~Add 10x to both sides
-5x + 10x = 20 - 10x + 10x
~Simplify
5x = 20
~Divide 5 to both sides
5x/5 = 20/5
~Simplify
x = 4
-------------------------------------------------
Answer:
x = 4
-------------------------------------------------
Hope This Helped! Good Luck!
what is the explicit formula for this gemoetric sequence 8 4 2 1
Answer:
an = 8·(1/2)^(n-1)
Step-by-step explanation:
The first value is a1 = 8 and the common ratio is r = 1/2, so the formula is ...
an = a1·r^(n-1)
an = 8·(1/2)^(n-1)
an = 2^(4-n) . . . . . . more compact version
Xan will cover some of this box in wrapping paper. He plans to leave one of the largest faces uncovered.
12 cm
10 cm
11 cm
How much wrapping paper will Xan need?
592 square cm
614 square cm
724 square cm
808 square cm
Final answer:
To find the wrapping paper needed for a box with given dimensions and one largest face uncovered, calculate the total surface area, subtract the area of the largest face, resulting in 592 square cm of wrapping paper required.
Explanation:
The question concerns calculating the amount of wrapping paper required to cover a box while leaving one of the largest faces uncovered. Given the dimensions of the box are 12 cm, 10 cm, and 11 cm, we can calculate the surface area of each face and sum them up, excluding one of the largest face, which is one with dimensions 12 cm x 11 cm.
First, calculate the surface area of all the faces: 2(12cm x 10cm) + 2(12cm x 11cm) + 2(10cm x 11cm) = 240cm² + 264cm² + 220cm² = 724cm².Next, subtract the area of the largest face (which will not be covered): 12cm x 11cm = 132cm².Finally, subtract this area from the total surface area calculated: 724cm² - 132cm² = 592cm².Therefore, Xan will need 592 square cm of wrapping paper to cover the box while leaving one of the largest faces uncovered.
A box contains 13 3/4 ounces of spaghetti.A serving size is 1 1/4 ounces. How many servings are in one box of spaghetti?
Answer:
11 servings
Step-by-step explanation:
13 3/4 ÷ 1 1/4 = 11
There are 11 servings in one box of spaghetti.
What is division?Division is breaking a number up into an equal number of parts.
Given that, A box contains 13 3/4 ounces of spaghetti. A serving size is 1 1/4 ounces.
55/4÷5/4 = 11
Hence, There are 11 servings in one box of spaghetti.
For more references on division, click;
https://brainly.com/question/21416852
#SPJ2
PLSSSS HELPPPP.
A mason will lay rows of bricks to build a wall. The mason will spread 3/8
inch of mortar on top of all but the last row of bricks. The finished wall will be 1/8
inches less than 4 feet high. Answer parts a and b below.
The mason wants to lay the bricks so that the shortest edge of each brick is vertical. How many rows of bricks are needed? Show your work.
Let b equal the number of rows of bricks. The total height of the bricks in inches is equal to _______ times _______
The total height of the mortar is equal to ______ times ______
Their sum is equal to the height of the wall or ______ inches.
If I write this as an equation and solve for b, then the result is ______ of bricks
Answer:
a) 18 rows of bricks are needed
b) 2.25 times b
0.375 times (b - 1)
46.875 inches
18 rows
Step-by-step explanation:
* Lets explain how to solve the problem
a)
- The height of each brick is the shortest edge
- The shortest age is 2 1/4 inch ⇒ (2.25 inches)
- If b is the number of the rows of bricks
∴ The height of the bricks = 2.35 × b
- The height of the mortar is 3/8 inches ⇒ (0.375 inch)
- All rows of bricks covered by mortar on top except the last row
- The height of mortar = 0.375 × (b - 1)
- The height of the wall is 1 1/8 (1.125) inches less than 4 feet
∵ 1 foot = 12 inches
∵ 4 feet = 12 × 4 = 48 inches
∴ The height of the wall = 48 - 1.125 = 46.875 inches
- The sum of the total height of bricks and the total height of mortar
is equal to the height of the wall
∴ 2.25 b + 0.375(b - 1) = 46.875
- By simplify it
∴ 2.25 b + 0.375 b - 0.375 = 46.875
∴ 2.625 b - 0.375 = 46.875
- Add 0.375 for both sides
∴ 2.625 b = 47.25
- Divide both sides by 2.625
∴ b = 18
∴ 18 rows of bricks are needed
b)
* Lets complete the missing
- The total height of the bricks in inches is equal to 2.25 times b
- The total height of the mortar is equal to 0.375 times (b - 1)
- Their sum is equal to the height of the wall or 46.875 inches
- If I write this as an equation and solve for b, then the result is
18 rows of bricks
To find the number of rows of bricks needed for a wall, we can set up an equation to solve for that number. The equation will involve the heights of the bricks and mortar layers, as well as the height of the wall. Solving the equation will give us the number of rows of bricks needed.
Explanation:To find the number of rows of bricks needed, we need to determine the total height of the bricks and the total height of the mortar. Let b be the number of rows of bricks. The total height of the bricks in inches is equal to the height of each brick multiplied by the number of rows (b). The total height of the mortar is equal to the height of the mortar layer multiplied by the number of rows minus 1 (b-1). The sum of the heights of the bricks and mortar is equal to the height of the wall, which is 4 feet minus 1/8 inches.
Writing this information as an equation, we have:
(height of the bricks x b) + (height of the mortar x (b-1)) = 4 feet - 1/8 inches
Solving this equation for b will give us the number of rows of bricks needed.
Learn more about Number of rows of bricks needed here:https://brainly.com/question/15805166
#SPJ3
The sum of four consecutive integers is 342. What is the third term in the sequence
Answer:
x + x + 1 + x + 2 + x + 3 = 4x + 6 = 342
4x = 336
x = 84
The third term is 84 + 2 = 86.
To find the third term in the sequence, we need to determine the first term and the common difference. By setting up and solving equations, we find that the first term is 84 and the common difference is 1. Therefore, the third term in the sequence is 86.
Explanation:To find the third term in the sequence, we need to determine the first term and the common difference.
Let's assume the first term is 'x' and the common difference is 'd'.
The four consecutive integers can be represented as x, x + d, x + 2d, and x + 3d.
Since the sum of these four integers is 342, we have the equation:
x + (x + d) + (x + 2d) + (x + 3d) = 342
Simplifying this equation, we get:
4x + 6d = 342
Now, we have two variables and one equation, so we need another equation to solve for x and d.
We can use the fact that the integers are consecutive, so the common difference is always 1.
Plugging in the value of d = 1 in the previous equation, we get:
4x + 6(1) = 342
Simplifying further, we get:
4x + 6 = 342
4x = 336
x = 84
Therefore, the third term in the sequence is x + 2d = 84 + 2(1) = 86.
Rearrange to make x the subject
a = 7x/k -r
Help me pls
Final answer:
To make x the subject of the equation a = 7x/k - r, add r to both sides, multiply by k, and then divide by 7, resulting in x = k(a + r)/7.
Explanation:
To rearrange the equation a = 7x/k - r to make x the subject, we need to perform a series of algebraic manipulations. Firstly, we add r to both sides of the equation, giving us a + r = 7x/k. Following this, we multiply both sides by k to get rid of the denominator, which results in k(a + r) = 7x. Finally, we divide both sides by 7 to solve for x, which gives us x = k(a + r)/7. This rearrangement shows x as the subject of the original equation.
(4v3 + 3v - 8v4) + (4V - 8v4 - 7)
Answer:
-21v-7
Step-by-step explanation:
1st remove parentheses: 4v*3+3v-8v*4+4v-8v-7
2nd Add similar elements: 3v+4v-8v= -v
=4*3v-v-8*4v-7
3rd Multiply the numbers: 4*3=12
12v-v-8*4v-7
4th Multiply the numbers: 8*4=32
=12v-v-32v-7
5th Add similar elements: 12v-v-32v=-21v
= -21v-7
what is the value of 4P -2 when P= 8
4p-2
Replace the P with the 8
4(8)-2
4*8=32
32-2=30
your answer would be 30 cause 4 times 8 is 32 then 32 - 2 = 30
[tex] {x}^{3} \times {x}^{4} [/tex]
Answer:
[tex]x^{7}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex], thus
x³ × [tex]x^{4}[/tex] = [tex]x^{(3+4)}[/tex] = [tex]x^{7}[/tex]
Answer:
[tex]x^{7}[/tex]
Step-by-step explanation:
[tex]x^{n}[/tex]×[tex]x^{m} = x^{n+m}[/tex]
What’s the answer to this problem?
Answer:
[tex]6 = f(4) \\ \\ 0 = f(-2)[/tex]
Step-by-step explanation:
Think of f(x). Those numbers in parentheses next to the f are x-coordinates, all you have to do is look in the chart and see what y-coordinate they gave you with respect to the given x-coordinates.
I am joyous to assist you anytime.
Sasha uses stickers on each page
of her scrapbook. If she bought a
package with 628 stickers, about
how many pages will she be able to
make? Use compatible numbers to
find your answer.
Answer:
628
Step-by-step explanation:
She wants to use the sticker for each page of her scrapbook if her scrapbook has more than 628 then she wont have any stickers left because she only has 628 stickers.
Find the range of f(x) =3x-5 for the domain {-1.5,2,4}
Answer:
Step-by-step explanation:
calculate :
f(-1) =3(-1)-5 = - 8
f(5) =3(5)-5 = 10
f(2) =3(2)-5 = 1
f(4) =3(4)-5 = 7
the range is : E = {-8.10,1,7}
The winner of a weight-lifting competition bench-pressed 400 pounds. All other competitors bench-pressed at least 23 pounds less. Write an inequality that represents the weights x (in pounds) that the other competitors bench-pressed.
Answer:
[tex]x\le 400-23\\ \\x\le 377\ pounds[/tex]
Step-by-step explanation:
The winner of a weight-lifting competition bench-pressed weight 400 pounds.
All other competitors bench-pressed at least 23 pounds less. So, the maximum weight that all other competitors bench-pressed is
[tex]400-23=977\ pounds[/tex]
If x pounds is the weight that the other competitors bench-pressed, then
[tex]x\le 400-23\\ \\x\le 377\ pounds[/tex]
that sounds as the other competitors bench-pressed at most 377 pounds weight.
Three consecutive integers have a sum of 30. Which equation can be used to find x, the value of the smal
numbers?
o (X+ 1) + (x+2) = 30
X+(x+1)+(x+2) = 30
x(x+ 1)(x+2) = 30
3x(x+ 1)(x+2) = 30
Answer:
It's the second choice.
Step-by-step explanation:
x + (x + 1) + (x + 2) = 30.
Solving for x will give you the smallest digit.
The equation x+(x+1)+(x+2) = 30 is used to find x.
The integers are 9, 10 & 11.
What is the required equation ?
If a, b, c are integers, then the sum of three integers is a+b+c
Let, x be a integer.
Then other two consecutive integers are, x+1 & x+2
Sum of this three integers is x+(x+1)+(x+2)
According to the question,
Sum of this three integers is 30
So, the equation becomes, x+(x+1)+(x+2) = 30
Now, solving, x+x+1+x+2 = 30
⇒ 3x+3 = 30
⇒ 3x = 27
⇒ x = 27/3 = 9
So, (x+1) = 9+1 = 10 & (x+2) = 9+2 = 11
Therefore, the three consecutive integers are 9, 10 & 11
Learn more about equation here :
https://brainly.com/question/27893282
#SPJ2
iris charges $50 for her consulting services plus $60 for each hour she works. on one job, iris charged $470. for how many hours did iris work on this job
Answer:
the answer is 7 hope I could
Answer: 7 hours.
Step-by-step explanation:
Take the original amount (470) and subtract the $50 consulting fee. then divide the remaining amount by 60, as that is what she charges per hour. See the work done here:
470 - 50 = 420
420/60 = 7
square root of
negative 144
12i is the correct answer
have a fantastic day
Answer:
It is undefined or not a real number.
Step-by-step explanation:
There is no negative square root.
square root is a number multiplied by itself twice.
If you multiply a positive number by itself twice, you will get a positive number.
If you multiply a negative number by itself twice, you will get a positive number.
Therefore this is undefined or not a real number.
Rate as brainliest plz
Let p: x < −3
Let q: x > 3
What is represented by p ∨ q?
Answer:
Step-by-step explanation:
p ∨ q : x < −3 or x > 3
Multiply.
(x - 7)(x - 10)
A) 2x + 70
B) x2 + 70
C) x2 - 70
D) x2 - 17x + 70
Solve the rational equation:
3x/x+1 + 2x/x-2 = 4x^-4/x^-x-2
Answer:
no solutionStep-by-step explanation:
[tex]\dfrac{3x}{x+1}+\dfrac{2x}{x-2}=\dfrac{4x^2-4}{x^2-x-2}\\\\Domain:\\\\x+1\neq0\ \wedge\ x-2\neq0\ \wedge\ x^2-x-2\neq0\\\\(1)\ x+1\neq0\qquad\text{subtract 1 from both sides}\\x\neq-1\\\\(2)\ x-2\neq0\qquad\text{add 2 to both sides}\\x\neq2\\\\(3)\ x^2-x-2\neq0\\x^2+x-2x-2\neq0\\x(x+1)-2(x+1)\neq0\\(x+1)(x-2)\neq0\to\ x+1\neq0\ \wedge\ x-2\neq0\\\\\bold{DOMAIN:}\ x\in\mathbb{R}-\{-1,\ 2\}[/tex]
[tex]\dfrac{3x}{x+1}+\dfrac{2x}{x-2}=\dfrac{4x^2-4}{x^2-x-2}\\\\\dfrac{(3x)(x-2)}{(x+1)(x-2)}+\dfrac{(2x)(x+1)}{(x+1)(x-2)}=\dfrac{4x^2-4}{(x+1)(x-2)}\\\\\dfrac{(3x)(x-2)+(2x)(x+1)}{(x+1)(x-2)}=\dfrac{4x^2-4}{(x+1)(x-2)}\\\\\text{therefore}\\\\(3x)(x-2)+(2x)(x+1)=4x^2-4\qquad\text{use the distributive property}\\\\(3x)(x)+(3x)(-2)+(2x)(x)+(2x)(1)=4x^2-4\\\\3x^2-6x+2x^2+2x=4x^2-4\qquad\text{combine like terms}\\\\(3x^2+2x^2)+(-6x+2x)=4x^2-4[/tex]
[tex]5x^2-4x=4x^2-4\qquad\text{subtract}\ 4x^2\ \text{from both sides}\\\\x^2-4x=-4\qquad\text{add 4 to both sides}\\\\x^2-4x+4=0\\\\x^2-2x-2x+4=0\\\\x(x-2)-2(x-2)=0\\\\(x-2)(x-2)=0\\\\(x-2)^2=0\iff x-2=0\qquad\text{add 2 to both sides}\\\\x=2\notin\bold{D}[/tex]
4 less than 20 times some number
Answer:
20x - 4
Step-by-step explanation:
4 less than 20 times some number
Let's break it up.
4 less than = -4
20 times some number = 20x (x is representing "some number")
So, let's put that together.
4 less than 20 times some number
20x - 4
How are the graphs of the functions f(x) = StartRoot 16 EndRoot Superscript x and g(x) = RootIndex 3 StartRoot 64 EndRoot Superscript xrelated? The functions f(x) and g(x) are equivalent. The function g(x) increases at a faster rate. The function g(x) has a greater initial value. The function g(x) decreases at a faster rate.
The functions f(x) = √16^x and g(x) = ∛64^x increase at the same rate as x increases.
Explanation:The functions f(x) = √16ˣ and g(x) = ∛64ˣ are related in the way they grow or decrease as x increases. Let's analyze each function:
For the function f(x) = √16ˣ, as x increases, the value of f(x) also increases. This is because when x increases, 16^x becomes larger, and taking the square root of a larger number results in a larger value for f(x).
For the function g(x) = ∛64ˣ, the same logic applies. As x increases, the value of g(x) also increases. This is because when x increases, 64ˣ becomes larger, and taking the cube root of a larger number results in a larger value for g(x).
Therefore, both functions f(x) and g(x) increase at the same rate as x increases. None of the given options accurately describe the relationship between the graphs of f(x) and g(x).
Learn more about Functions here:https://brainly.com/question/30721594
#SPJ3
Answer:
A.
Step-by-step explanation:
Find the dr/d(theta) for:
r = (theta)sin(theta) + cos(theta)
[tex]r=\theta\sin\theta+\cos\theta[/tex]
[tex]\dfrac{\mathrm dr}{\mathrm d\theta}=\dfrac{\mathrm d(\theta\sin\theta)}{\mathrm d\theta}+\dfrac{\mathrm d(\cos\theta)}{\mathrm d\theta}[/tex]
By the product rule,
[tex]\dfrac{\mathrm d(\theta\sin\theta)}{\mathrm d\theta}=\dfrac{\mathrm d(\theta)}{\mathrm d\theta}\sin\theta+\theta\dfrac{\mathrm d(\sin\theta)}{\mathrm d\theta}=\sin\theta+\theta\cos\theta[/tex]
and
[tex]\dfrac{\mathrm d(\cos\theta)}{\mathrm d\theta}=-\sin\theta[/tex]
So we have
[tex]\dfrac{\mathrm dr}{\mathrm d\theta}=\sin\theta+\theta\cos\theta-\sin\theta[/tex]
[tex]\implies\dfrac{\mathrm dr}{\mathrm d\theta}=\theta\cos\theta[/tex]
What fraction is equal to75% of 1/2
Answer:
3/8
Step-by-step explanation:
We can write 75% as a fraction, 75/100 and simplifying the fraction gives 3/4.
Then you have to multiply 1/2 * 3/4 which gives the result of 3/8.
Answer: 3/8
Step-by-step explanation:
First, I'm going to be using the 1/2 as .5
.5 x .75 = .375
.375 in fraction form is 375/1000
Simplified is 3/8.