Answer:
False.
Step-by-step explanation:
Because we have to isolate y and subtracting 2 will not put y alone on one side.
We have to subtract 2x in order to solve for y.
Answer:
False
Step-by-step explanation:
To solve this equation 2x + y = 5, you need another pair equation with the same variables, or one of the variables (x or y) need to be known to solve this equation.
Or you need to subtract 2x from both side to make y subject of formula.
What is 10 1/2 ÷ 2 1/4
Answer:
4.66666666667 or 4[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Answer:
It would be 4 2/3.
Step-by-step explanation:
math! About 3 percent of Earth's water
is fresh water. Of that 3 percent, about
69 percent is ice. About what percent of
Earth's total water supply is ice?
Help
Answer:
2.07%
Step-by-step explanation:
69 percent of 3 percent = 0.0207 = 2.07%
Answer:2.07%
Step-by-step explanation:
what is the multiplicative inverse of -5 1/2
Answer:
-2/11
Step-by-step explanation:
-5 1/2=-11/2
-2/11
Which fraction is proportional to 2/5?
5/2
6/15
4/7
6/8
Answer:
6/15
Step-by-step explanation:
Because if you multiply top and bottom by 3 you get 6/15
2/5*3/3=6/15
Please answer ASAP!
The sum of three numbers is -44.84. One of the numbers is 24.6. The other numbers are equal to each other. What is the value of each of the other two numbers?
Answer:
-34.72
Step-by-step explanation:
a + b + c = -44.84
a= 24.6
24.6 + b + c = -44.84
Since b = c (given "the other numbers are equal to each other")
Substitute b into c, we have
24.6 + b + b = -44.84 (b+b is the equivalence of 2 x b)
24.6 + 2b = -44.84 (subtract 24.6 from both sides)
2b = -69.44 (divide 2 from both sides)
b= -34.72
Since b = c (given "the other numbers are equal to each other")
c is also -34.72
Mrs. Wadley is tie-dying t-shirts for her AP Stats class. White shirts cost $4 each and black shirts are $5 each. There are 18 students in the class, and she spent $75. How many white shirts did she buy ? how many black shirts?
Mrs. Wadley bought 15 white shirts and 3 black shirts.
Step-by-step explanation:
Cost of one white shirt = $4
Cost of one black shirt = $5
Students in class = 18
Money spent on shirts = $75
Let,
white shirts = x
black shirts = y
According to given statement;
x+y=18 Eqn 1
4x+5y=75 Eqn 2
Multiplying Eqn 1 by 5;
[tex]5(x+y=18)\\5x+5y=90\ \ \ \ Eqn\ 3[/tex]
Subtracting Eqn 2 from Eqn 3;
[tex](5x+5y)-(4x+5y)=90-75\\5x+5y-4x-5y=15\\x=15[/tex]
Putting x=4 in Eqn 1
[tex]15+y=18\\y=18-15\\y=3[/tex]
Mrs. Wadley bought 15 white shirts and 3 black shirts.
Keywords: linear equation, subtraction
Learn more about linear equations at:
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2(4x - 5) - (x - 4) solve please
Answer:
7x-6
Step-by-step explanation:
2(4x-5)-(x-4)
8x-10-x-(-4)
8x-10-x+4
7x-10+4
7x-6
Step-by-step explanation:
2(4x-5) - (x-4)
8x-10 - (x-4)
8x-10 -x+4
7x-6
(2x + 6y = -28
(x+3y=-14
YOU
how do u solve this
Answer:
Infinite Solution
Step-by-step explanation:
Your teacher gave you a tricky one lol
NVM it's right, I doubled checked
Answer:
Step-by-step explanation:
142.5 divided by 9.5
Answer:
The answer to your question is 15
Answer: the answer is 15
Hope this helps :)
Alison saves $29.26 each month. How many months will it take her to save enough money to buy a stereo for $339.12?
A. 10
B. 11
C. 12
D. 13
Answer:
C. 12 months
Step-by-step explanation:
If you do 339.12/29.26 it will equal to 11.589 so that's like 11 months and a half so can't be 11 months has to be 12 months
A water park charges a rental fee plus $1.50 per hour to rent inflatable rafts. The total cost to rent a raft for 6 hours is $15. Assume the relationship is linear. Find and interpret the rate of change and the initial value.
Answer:
C = 6 + 1.5h.
$6 is the fixed fee that the park charges.
And $1.5 is the rate of charge per hour for rent of the raft.
Step-by-step explanation:
The water park charges a rental fee plus $1.5 per hour to rent inflatable rafts.
Let the total charge (C) has a linear relationship with the number of hours (h) spent in the park and it is C = a + bh ......... (1)
Now, b is the rate of charge to rent inflatable rafts and b = $1.5 per hour.
So, C = a + 1.5h ........... (2)
Now, given that the total cost to rent a raft for 6 hours is $15.
So, from equation (2) we get,
15 = a + 1.5 × 6
⇒ a = 6
Therefore, the equation (2) becomes C = 6 + 1.5h.
Here, $6 is the fixed fee that the park charges.
And $1.5 is the rate of charge per hour for rent of the raft. (Answer)
Point Q(-1, 5) is reflected across the line x = -1. What are the coordinates of its image? (5, -1) (1, 5) (-1, -5) (-1, 5)
Answer:
(-1,5)
Step-by-step explanation:
The line x = -1 is a vertical line parallel to the y-axis.
Therefore, if the point Q(-1,5) reflects on line x = -1, then the y-coordinate of the image point will not change.
Again, as the point Q(-1,5) is on the line x = -1, therefore, the image will be the point itself i.e. (-1,5). (Answer)
The horizontal distance from point (-1,5) to the line x = -1 is zero.
Answer:
(-1,5)
Step-by-step explanation:
A school drama club has 40 members. Of those students, 35% are seventh graders. How many drama club members are seventh graders?
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Required percentage value = a
total value = b
Percentage = a/b x 100
The number of members in the drama club that are seventh graders is 14.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
5% = 5/100 = 1/20
We have,
Total number of members = 40
Percentage of members who is 7th graders = 35%
The number of 7th graders.
= 35% of 40
= 35/100 x 40
= 35/10 x 4
= 7 x 2
= 14
Thus,
The number of members in the drama club that are seventh graders is 14.
Learn more about percentages here:
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If (x – 2k) is a factor of f(x), which of the following must be true? f(2k) = 0 f(-2k) = 0 A root of f(x) is x = -2k. Ay intercept of f(x) is x = 2k.
Answer:
A. f(2k)=0
Step-by-step explanation:
The factor theorem states that a polynomial f(x) has a factor (x−k) if and only if f(k)=0 (i.e. k is a root).
If (x – 2k) is a factor of f(x), then by the factor theorem f(2k)=0 (i.e. 2k is a root).
Option A is true, f(2k)=0
Option B is false, it should be like in option A, f(2k)=0
Option C is false, because x=2k is a root, not x=-2k
Option D is false, because x-intercept of f(x) is x=2k, not y-intercept.
Answer:
A. f(2k) = 0
Step-by-step explanation:
Jeff has 4 red pens and 2 blue pens in his backpack. He also has 1 yellow highlighter and 4 green highlighters in his
backpack. If he reaches into his backpack and grabs one pen and one highlighter without looking, what is the probability
that he will grab a blue pen and a yellow highlighter?
Answer:
[tex]\frac{1}{15}[/tex]
Step-by-step explanation:
In probability,
"AND" means "multiplication"
"OR" means "ADDITION"
We want probability of Blue Pen and Yellow Highlighter. So we find individual probabilities and "MULTIPLY" them.
Let P(b) be probability of blue pen
Let P(y) be probability of yellow highlighter
We know probability of event is that event divided by total number of that
So,
There are 4 + 2 = 6 pens
Blue pen = 2
Hence,
P(b) = 2/6 = 1/3
And,
There are 5 highlighters
Yellow highlighter = 1
Hence,
P(y) = 1/5
Now,
P(b and y) = 1/3 * 1/5 = 1/15
Hence,
probability of grabbing blue pen and a yellow highlighter is [tex]\frac{1}{15}[/tex]
Answer:
2/15
Step-by-step explanation:
9.
Given that 4:5:8 is equivalent to 1:n:b. Find the ratio of n:b only.
Step-by-step explanation:
So 4:5:8
= 1:n:b
which means that 4/n= 1
n= 1x4 so n=4
Now we know that 4 is divided by 4 to get 1, so we do the same for the other two values.
5/4= 1.25 and 8/4= 2
So now place the values for n:b
n= 1.25 b=2
So n:b= 1.25:2
To check, multiply each of the values in 1:1.25:2 by 4 and see if the answer you get is the same as 4:5:8.
Why Do Airlines Think They Show the Best Movies?
On a separate sheet of paper write the number-letter pair next to each word that correctly names each
figure and state which property supports your answer. (use the properties given to you in the PDF notes
To solve the rhyme, rhyme. write the letter in the matching numbered box at the bottom of the
page. Provide the answer to this rhyme with your work.
Answer:
1. Rhombus
2. Square
Step-by-step explanation:
1. A rhombus is a quadrilateral whose four sides all have the same length and opposite sides are parallel.
From the diagram, you can see that [tex]\overline{AB}\parallel \overline{CD},\ \overline{AD}\parallel \overline{BC}[/tex] (given) and all four sides are congruent, thus this shape is a rhombus.
2. A square is a quadrilateral which has four equal sides, four equal angles (90-degree angles) and opposite sides are parallel.
From the diagram, you can see that [tex]\overline{EF}\parallel \overline{GH},\ \overline{EH}\parallel \overline{FG}[/tex] (given), all four sides are congruent, and all four angles are right angles, thus this shape is a square.
Greta is 1 1/2 meters tall which of the following is equivalent to 1 1/2 meters
1 1/2 meters is equivalent to 1500 millimeters.
The correct option is (b).
To find out which option is equivalent to 1 1/2 meters, we need to convert 1 1/2 meters to millimeters.
Given:
- Gretta's height is 11/2 meters.
To convert meters to millimeters, we'll use the fact that 1 meter is equal to 1000 millimeters.
So, to convert 1 1/2 meters to millimeters:
[tex]\[ \text{1 1/2 meters} = (1 + 1/2) \times 1000 \text{ millimeters} \][/tex]
[tex]\[ = (1.5) \times 1000 \text{ millimeters} \][/tex]
[tex]\[ = 1500 \text{ millimeters} \][/tex]
So, 1 1/2 meters is equivalent to 1500 millimeters.
Therefore, the correct option is:
b. 1500 millimeters
complete question given below:
Gretta is 11/2 meters tall. Which of the following is equivalent to 1 1/2 meters?
a.150 millimeters
b.1,500 millimeters
c.100 millimeters
d.1,000 millimeters
Solve -9 (t -2) = 4(+ -15
The solution t =
Answer:
8.67
Step-by-step explanation:
-9t+18= -60
60+18=9t
78=9t
t= 78/9
=8.66
Marty must pack 4,125 steel ball bearings into 10 boxes. Each box must contain an equal number of bearings. How many bearings does he have left over? (use long division to find the remainder)
A) 3
B) 5
C) 7
D) 9
Answer:
5 are left over
The drawing will help
Answer:
B
Step-by-step explanation:
-6x+y=8
5x+y=8
using elimination method
Answer:
x=0, y=8. (0, 8).
Step-by-step explanation:
-6x+y=8
5x+y=8
-----------
-6x+y=8
-(5x+y)=-8
--------------
-6x+y=8
-5x-y=-8
-------------
-11x=0
x=0/-11
x=0
5(0)+y=8
0+y=8
y=8-0
y=8
What is the value of k in the equation 10k-7=7k-15
Answer:
k=-8/3
Step-by-step explanation:
10k-7=7k-15
10k-7k-7=-15
3k-7=-15
3k=-15+7
3k=-8
k=-8/3
[hg](x,) if g(x)=x-5 and h(x)=|x|
It looks like you want to multiply the two functions. If so, then,
(h*g)(x) = h(x)*g(x)
(h*g)(x) = (x-5)*|x|
(h*g)(x) = x|x| - 5|x|
Find the inverse of f(x) = 3x - 2.
A) f^-1(x) = x+2/3
B) f^-1(x) = x-2/3
C) f^-1(x) = x - 2/3
D) f^-1(x) = x + 2/3
Answer:
x=0.6
Step-by-step explanation:
f(×)=3x-2 , 0=3x-2
Graph y= –3x+4 k12
im practing for a test can i get this in picture form
Figure represented the line y = -3x+4
Step-by-step explanation:
Given y=-3x+4 is equation of line
In order to graph the line, we need atleast two points
Now, When x = 0, y=?
y = -3x+4
y = -3(0) +4
y = 4
Point we get A(0,4)
Now, When x = 1, y=?
y = -3x+4
y = -3(1)+4
y = -3+4 = 1
Point we get B(1,1)
On graph, Locate points A(0,4) and B(1,1)
Draw a line passing through both of the points at once.
Figure is shown for your reference.
4x + 9y = 4
9x+4y = 13
5
The tables of ordered pairs represent some points on the graphs of lines q and v.
Line 9
Line v
-9,6-
3
2
| 24410
T 1o| 8
10
| 3
y
0
18
33
Which system of equations is represented by lines q and V?
F
H
21x - y = 9
5x + 6y = 40
21x - y = 9
5x + 6y = 20
G
3x - y =-27
x + 2y = 16
9x - y = -27
x + 2y = 8
Answer:
x=101/65, y=-16/65. (101/65, -16/65).
Step-by-step explanation:
4x+9y=4
9x+4y=13
----------------
9(4x+9y)=9(4)
-4(9x+4y)=-4(13)
------------------------
36x+81y=36
-36x-16y=-52
----------------------
65y=-16
y=-16/65
4x+9(-16/65)=4
4x-144/65=4
4x=4+144/65
4x=404/65
x=(404/65)/4=101/65
x=101/65, y=-16/65.
The sum of an irrational number and a rational number is?
Answer:
Irrational Number
Step-by-step explanation:
PLEASE HELP I WILL GIVE BRAINLIEST!!
Answer:
Not the commutative property but the fact that absolute value is always positive so the absolute value of x is equal to the absolute value of negative x
Step-by-step explanation:
The price of a pair of shoes is $52. This price is 15% lower than last week.
What was the price of the shoes last week?
Round your answer to the nearest cent.
Enter your answer in the box.
Answer:
60
Step-by-step explanation:
Answer:
$61.18
Step-by-step explanation: the first one is wrong it is $61.18
is -44 a rational or irrational
Answer: Rational
Step-by-step explanation: -44 is an integer and all integers are rational numbers. Therefore, -44 is classified as a rational number.
The set of integers includes the set of whole numbers {0, 1, 2, 3...} and they also include their negative counterparts.
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