A problem states that Ursula earns $9 per hour. To write an expression that tells how much money Ursula earns h hours, Joshua wrote (fraction) 9/h. Sarah wrote 9h. Whose expression is correct and why?

Answers

Answer 1

Answer: $9 per hour
the answer is 9h because if you tried to find out how much she earns after 10 hours you would do 9*10=90 not the other one

Answer 2

Answer: Sarah, because it tells how much money she earns each hour.

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Create a variable expression that represents the word phrase: twelve times a number

Answers

12n or 12
$* n$

Label the terms in the expression as constant, linear, and quadratic

Answers

Answer:

Step-by-step explanation:

4x^2 is the quadratic

3x is linear

-6 is the constant.

−1 100/60 +0.1+ 4/1=

Answers

Answer:

1.43 3 repeating

Step-by-step explanation:

Answer:

1.43333...

Hope This Helps :)

Which of the following is equal to the fraction below? (7/4)^ 11

Answers

Answer:

$((7^(11))/(4^(11)))$

Step-by-step explanation:

$((7)/(4))^(11)$

To simplify this fractional exponent we apply exponential property

$((x)/(y))^m=(x^m)/(y^m)$

As per this property , we multiply the exponent inside the fraction

Multiply the exponent 11 inside the fraction

Multiply the exponent 11 with 7 and then 4

$((7)/(4))^(11)$

$((7^(11))/(4^(11)))$

When you multiply an exponent directly into another exponent, you multiply the exponents

(for a fraction, you multiply the exponent to both the numerator and denominator)

For example:

$(x^(2))^5=x^(2(5))=x^(10)$

$((x^3)/(y^2) )^5=(x^(3(5)))/(y^(2(5))) =(x^(15))/(y^(10))$

$((7)/(4))^(11)=((7^1)/(4^1))^(11)=(7^(11))/(4^(11))$

Your answer is A

What % of 25 is 21?

Answers

Answer: 84%

Step-by-step explanation:

1. Since 25 is the output value, we can assume that it is 100%

2. Now we out what we want to find with x

3. From step one, 25=100%

4. In the same line, x%=21

5. This gives us 2 equations:

100%=25(1)

x%=21(2)

6. By dividing equation 1 by equation 2 and taking note of the fact that both the left hand side of both equations have the same unit (%); we have (set up a proportion)

7. Then, take the reciprocal and solve. You should end up with x=84%

Answer:

0.84

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Jamila and Akiko had the same amount of money to spend. After Jamila spent $33 and Akiko spent$42, Jamila had 4 times as much money left as Akiko. How much money did each of them have in
the beginning?

Answers

Answer: $45

Step-by-step explanation: Let the amount of money be x ,

Then , after Jamila spent $33 , the remaining money is x-33,

Also , after Akiko spent $42 , the remaining money is x- 42,

since Jamila is now having 4 times as much money left as Akiko, we have

x - 33 = 4 ( x - 42)

x - 33 = 4x - 168

-33+168 = 4x - x

135 = 3x

Therefore ,

x = 45

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Round 636 to the nearest ten and hundred