Solve the proportion.
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Answe

Step-by-step explanation:

B

Answer:

.20(7) ≤ x .20(8)

Step-by-step explanation:

let 'x' = amount of time in REM sleep

Answer:

1.4[tex]\leq[/tex] x [tex]\leq[/tex] 1.6

Step-by-step explanation:

You can start off by writing the inequality that 7(.20) is less than/equal to x which is less than/equal to 8(.20). Then, you just multiply the numbers and you have the 20% that you spend in REM sleep.

Hope this helps!

Step-by-step explanation:

y = mx + c

When x = 0, y = 2.

=> (2) = m(0) + c, c = 2.

When x = 3, y = 8.

=> (8) = m(3) + 2, 3m = 6, m = 2.

Hence the answer is y = 2x + 2.

Answer:

A

A

Step-by-step explanation:

8) because of the rules of angles we know that all angles found on a line are equal to 180 degrees, and all angles opposite one another are equal. because of this A is not possible. 90 and 40 do not add up to 180 degrees, and are not equivalent to each other.

9) using the same rules as above, we know that the two angles have to add up to 180 degrees (they can't be equal this time). A is not possible.

Answer:

2 to 6, 3 to 9, and 4 to 12

Answer:

9

Step-by-step explanation:

you can set up a proportion for it (i included a picture of it)

Answer:

I am just doing this to confirm the other person is right. It is 9.

Step-by-step explanation:

Answer:

$4.04

Step-by-step explanation:

Since the ice cream is 15% off, that means you will have to subtract 0.15 from 1, since 1 is 100%, and 0.15 is 15%. If you do the math, then you will get 0.85, which translates to 85%. So now that we have found the percentage of the original price that we have to pay, we can do some more advanced calculations. Since we found the 1 - 0.15 = 0.85, we will multiply the original price, which is $4.75, by 0.85. You can do this by hand or by calculator. You will get 4.0375, which is your answer. Since this is about money, you will have to add a $ sign at the beginning, which would be $4.0375. Of course, you can't pay a percentage of a cent, so you would have to round that up to $4.04. In conclusion, the sale price of the half-gallon of ice cream is $4.04.

Answer:

13.22%

Step-by-step explanation:

Answer:

Step-by-step explanation:

if we are supposed to solve [tex]x^{2}[/tex] + 2x + 9 = 0   there here is the solution

using the quadratic formula

= (-2 ± [tex]\sqrt{2^{2}-4*9 }[/tex] )/2

= (-2 ± [tex]\sqrt{-32}[/tex]) / 2

= (-2 ± i [tex]\sqrt{16*2}[/tex])/2

= (-2 ± i 4[tex]\sqrt{2}[/tex])/2

= -1 ± i 2[tex]\sqrt{2}[/tex]

complex number land   :)

Answer:

18x to the power of 2 -15x+2

Step-by-step explanation:

Answer:

A. The balloon is at its initial height

B. The boxer is 0 pounds from her starter weight

C. The company's size is smaller

Step-by-step explanation:

For A, -30+30 is equal to 0 so its gonna be the same height it was before.

For B, Gaining 7 pounds and losing 7 pounds means you are neither bitter or smaller. (-7+7=0)

For C, Losing 15 employees and gaining none means that there are less than there were previous meaning the company is now smaller.

Hope this helps.

Answer:

27 Grams

Step-by-step explanation:

Answer: 3.4%

Step-by-step explanation:

divide 258 and 74 then round that answer to the nearest tenth place.

Answer:  28.7%

Step-by-step explanation:

74 ÷ 258 = 0.2868

0.2868 --->  28.68  --->  28.7%

Answer:

i think its mq

Step-by-step explanation:

Answer:

∠RTS = 57°

x=9

Explanation:

By just factoring out integers starting from 10 and going down. You can factor each one out. Add all together. And see whether all angles equal 180. And if they do. Then that's what x equals. Not the smartest of explanations but it works lol.

Answer:

PEMDAS

Step-by-step explanation:

P=Parentheses

E=Exponents

M=Multiplication

D=Division

A=Addition

S=Subtraction

Answer: y = 20*4^x

Step-by-step explanation:to find the value of the constants a and b, we just need to use the points given in the equation and solve the system of equations:

point (0,20): x = 0 and y = 20:

20 = a*b^0 = a*1 = a

a = 20

point (2,320): x = 2 and y = 320

320 = 20 * b^2

b^2 = 16

|b| = 4

b = 4 or b = -4

So we have two exponencial equations that pass through these points:

y = 20*4^x and y = 20*(-4)^x

As the questions asks for just one equation, we can answer y = 20*4^xIf you have two points, (x1, y1) and (x2, y2), you can define the exponential ... these points by substituting them in the equation y = abx and solving for a and b. ... In this form, the math looks a little complicated, but it looks less so after you ... Taking 1910 as the starting point, this gives the pair of points (0, 1.75) and (100, 6.87). which well turn out to be y=6(4)^x

Answer:

50 dollors

Step-by-step explanation:

Answer:

image?

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

.5 is 5 4 and below round down 5 and up round up

Answer:

2.5 Teaspoons of vanilla are needed.

Step-by-step explanation:

If 3 cups of flour is 1.5 teaspoons of vanilla. 1.5 /3=.5 Meaning there is .5 teaspoons of vanilla per cup of flour.

If you have 5 cups of flour   5 x .5= 2.5 (teaspoons)

Answer:

It's down below. :)

Step-by-step explanation:

Actual answer: 247 - 83 = 164

Estimation: 250 - 80 = 170

Answer:

System of equations:

x + y = 20

2x + 2y = 72

Step-by-step explanation:

Answer:

- If two angles are congruent, then they are right angles.

- It is true

Step-by-step explanation:

The given statement is;

If two angles are right angles, then it is said that they are congruent.

Now, from converse, inverse and contrapositive statements, we can say that if the conditional statement is given as "if x, then y", it means that the converse statement will be written as;

"If y, then x".

We just switched the hypothesis with the conclusion.

Therefore, the converse of the statement given in the question is:

If two angles are congruent, then it means they are right angles.

The original statement and the converse statement are equivalent, therefore the converse is true.

Answer:

5 is the slope

Step-by-Step Explanation:

(10, 50) x1 and y1

(20, 100) x2 and y2

[tex]\frac{100-50}{20-10}[/tex]=[tex]\frac{50}{10}[/tex]

50÷10=5

If this helped you make sure to make my answer brainliest. Thank you.