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3 years ago

The equation 7(u-5)=21 is solved in several steps below. For each step, choose the reason that best justifies it.

Mathematics

1 answer:

krok68 [10]3 years ago

4 0

Answer:

$u = 8$

Step-by-step explanation:

The steps are not shown. So, I will solve from scratch

Given

$7(u -5) = 21$

Required

Solve, with steps

$7(u -5) = 21$

Apply distributive property

$7u - 7 * 5 =21$

$7u - 35 =21$

Collect like terms

$7u = 35 + 21$

$7u = 56$

Divide both sides by 7

$\frac{7u}{7} = \frac{56}{7}$

$u = 8$

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The minimum weekly commission earned to be a STAR sales person is $9000. If Sandra receives a 12% commission on the sale of all

katovenus [111]

Answer:

$numbers\ of\ cars \geq \frac{75000}{price\ of\ the\ car}$

Step-by-step explanation:

Hello, I can help you with this

Step 1

define

The minimum weekly commission earned to be a STAR sales person is $9000, let's name this value as M

if Sandra receives a 12% commisions of the sale of all cars, then that 12% must be equal or higher than 9000 in order to become a STAR sales person

Step 2

using a rule of three find the 100%

12% ⇔ $9000

then

100% ⇔x

the ratio is

$\frac{12}{9000}=\frac{100}{x}\\$

Now, solve for x

$\frac{12}{9000}=\frac{100}{x}\\\\\frac{12*x}{9000}=\frac{100}\\\\{12x}=9000*100\\\\12x=900000\\x=\frac{900000}{12}\\ x=75000\\$

so, Sandra must sell a minimun of $75000

Now, to give a response, we need to asume a only price for every car(p).

now, in matemathical terms.

the minimun number of cars she must to sell is

minum number of cars sandra has to sell to become a STAR sales person

is $\frac{75000}{price\ of\ the\ car} \\$

$\frac{75000}{price\ of\ the\ car} \\$

now, price of the car* number of the car = 75000

where

$numbers\ of\ cars \geq \frac{75000}{price\ of\ the\ car}$

Have a nice day

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Read 2 more answers

salad dressing is made by mixing lemon juice and oil in the ratio 5:4. eleanor makes 900ml of the salad dressing how much lemon

xxTIMURxx [149]

Answer:

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Step-by-step explanation:

5:4, right?

5 + 4 = 9

There's your answer, friend!

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