All categories

2 years ago

Diane made $286 for 13 hours of work,

Mathematics

1 answer:

lyudmila [28]2 years ago

4 0

Answer:

8 hours

Step-by-step explanation:

286 divided by 13 is 22

so she's making 22 dollars an hour

22 times x = 176

x = 8

she would need to work 8 hours

You might be interested in

What percentage of Americans would you predict wear contact lenses?

mylen [45]

About 11% of Americans wear contacts!

4 0

2 years ago

Write an expression to represent the submarine’s elevation after its final dive. Then simplify the expression to find its elevat

RideAnS [48]

Answer:

-502.5 − 115 = -617.5

The submarine’s elevation after its final dive is -617.5 feet, or 617.5 feet below sea level.

Step-by-step explanation:

Plato answer

3 0

3 years ago

Eleanor deposits 20% of the money that she earns each week in a savings account. If Eleanor earns $85 each week, how much money

RoseWind [281]

Answer:

She will deposit $17.

Step-by-step explanation:

So this is really simple.

20% of $85= 0.20•85= 17=$17

5 0

3 years ago

Read 2 more answers

This is my question. If Andy drove 840 miles in 12 hours. How far could he drive in hours? Help me?

stellarik [79]

Answer:

840mi. - 12 hrs

x - 3 hrs

This is a simple cross multiplying problem.

840 _ 12

x -- 3 ⇒12x=3(840) ⇒ 4x=280 ⇒ x=70 miles

Step-by-step explanation:

7 0

3 years ago

13x=-21-6y and -8x=36+6y

IgorLugansk [536]

Answer:

$x=3\\y=-10$

Step-by-step explanation:

$13x=-21-6y\\-8x=36+6y$

Let's take one of the equations and solve for x. I'll take the first one.

$13x=-21-6y$

Divide by 13.

$x=\frac{-21-6y}{13}$

Now replace x in the second equation.

$-8x=36+6y\\-8(\frac{-21-6y}{13} )=36+6y$

Distribute -8

$\frac{168+48y}{13}=36+6y$

Break down the fraction.

$\frac{168}{13}+\frac{48}{13}y=36+6y$

Subtract $\frac{168}{13}$

$\frac{48}{13}y=36+6y-\frac{168}{13}$

Subtract 6y

$\frac{48}{13}y-6y=36-\frac{168}{13}$

Combine like terms;

$\frac{48-13*6}{13}y=\frac{36*13-168}{13}$

Solve;

$\frac{48-78}{13}y=\frac{468-168}{13}$

Keep solving;

$\frac{-30}{13}y=\frac{300}{13}$

Multiply by the negative reciprocal of the fraction next to y.

$(-\frac{13}{30} )\frac{-30}{13}y=\frac{300}{13}(-\frac{13}{30} )$

On the right side; 13 and 13 become 1. 300/30 = 30/3 = 10

$y=-10$

After having found y, replace it in any of the equations to find x.

$13x=-21-6y\\13x=-21-6(-10)\\13x=-21+60\\13x=39\\x=\frac{39}{13}\\ x=3$

6 0

3 years ago

Read 2 more answers