Define a variable, write an equation and SOLVE the equation. Sandy had

Emma started babysitting her neighbor. After babysitting for 5 hours, she made $37.50. What is her babysitting pay rate?

LUCKY_DIMON [66]

Answer:

$7.50

Step-by-step explanation:

Hourly Pay * 5 = 37.5

Rearrange to find the hourly pay

Hourly pay = 37.5 / 5 = 7.5

5 0

4 years ago

Which ordered pairs are in a proportional relationship with (0.2, 0.3)?

MAXImum [283]

Answer:

C and E

Step-by-step explanation:

We are given that

$x_1=0.2,y_1=0.3$

$\frac{y}{x}=\frac{0.3}{0.2}=\frac{3}{2}$

$k=\frac{y}{x}=\frac{3}{2}$

A. $x_2=1.2,y_2=2.3$

$\frac{y_2}{x_2}=\frac{2.3}{1.2}=\frac{23}{12}\neq=\frac{3}{2}$

Hence, it is not in proportional relationship with (0.2,0.3)

B.(2.7,4.3)

$x_3=2.7,y_3=4.3$

$\frac{y_3}{x_3}=\frac{4.3}{2.7}=\frac{43}{27}\neq\frac{3}{2}$

Hence, it is not in proportional relationship with (0.2,0.3).

C.(3.2,4.8)

$x_4=3.2,y_4=4.8$

$\frac{y_4}{x_4}=\frac{4.8}{3.2}=\frac{3}{2}$

Hence, the ordered pair (3.2,4.8) are in a proportional relationship with (0.2,0.3).

D.(3.5,5.3)

$\frac{y_5}{x_5}=\frac{5.3}{3.5}=\frac{53}{35}\neq \frac{3}{2}$

Hence, the ordered pair (3.5,5.3) are not in a proportional relationship with (0.2,0.3).

E.(5.2,7.8)

$\frac{y_6}{x_6}=\frac{7.8}{5.2}=\frac{3}{2}$

Hence, the ordered pair (5.2,7.8) are in a proportional relationship with (0.2,0.3).

4 0

3 years ago

Please help! Will mark brainliest! Simplify. <img src="https://tex.z-dn.net/?f=%283a%5E%7B2%7D%2A-3a%29" id="TexFormula1" ti

PilotLPTM [1.2K]

Step-by-step explanation:

Since -3a can be said to have a power of 1, we add the powers together and multiply the coefficients

-9a³

8 0

3 years ago

What is this? <img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" title=" \\ " alt=" \\ " align="absmiddle" clas

liberstina [14]

Answer:

TeX, stylized within the system as TeX, is a typesetting system which was designed and written by Donald Knuth and first released in 1978. TeX is a popular means of typesetting complex mathematical formulae

Step-by-step explanation:

TeX, stylized within the system as TeX, is a typesetting system which was designed and written by Donald Knuth and first released in 1978. TeX is a popular means of typesetting complex mathematical formulae

7 0

3 years ago

Read 2 more answers

A 154-lb person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/hr. Write a function rule to represent

katrin2010 [14]

A function rule could simply be: c = 420h , where c is the total number of calories burned and h is the number of hours riding at 15 mi/hr.

All you need to do is plug in the number of hours that he rode at this rate and multiply it by 420.

7 0

3 years ago

Read 2 more answers