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3 years ago

12

N - 9.02 = 3.87 what is (n)?

1 answer:

Nadya [2.5K]3 years ago

7 0

Answer:

n = 12.89

Step-by-step explanation:

Add 9.02 + 3.87

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Write and solve a problem involving money that can be solved with a multiplication equation. tell what the variable represents

olganol [36]

Ben wanted to take some money from his Friends to build his family a home. He said that he would give the money back after 12 months. So he would give 1500$ a month. How much money did he borrow?
1500*12=x

Matilda got also money, she told Ben, I got x $ from my dad and y $ from mom. all they gave me was 5000$. If I gave mom Half of the moneys I got from her than I would have 3000$ left to pay. How much did she borrow from her parents?
x+y=5000
and
x+y/2=3000

so x=5000-y
and
5000-y+y/2=3000

so
x=5000-y
and
y=4000

so x=1000 and y=4000

4 0

3 years ago

What is 81 = 3x <br><br> plz help will give phone number and brainlest

Nadya [2.5K]

Answer:

x= 27

Step-by-step explanation:

81=3x

divide by 3

x= 27

7 0

3 years ago

Read 2 more answers

Elena is paid a constant rate for each hour she works. The table shows the amounts of money that Elena earned for various amount

Nikolay [14]

Constant rates are used to illustrate linear functions.

The average rate of change is $9.0 per hour
The function that models the table is: $\mathbf{f(x) = 9x }$
The amount earned in 7.5 hours is $67.5

<u>(a) The average rate of change</u>

This is calculated using:

$\mathbf{Rate = \frac{y_2 -y_1}{x_2 -x_1}}$

So, we have:

$\mathbf{Rate = \frac{31.5-22.50}{3.5 - 2.5}}$

$\mathbf{Rate = \frac{9}{1.0}}$

$\mathbf{Rate = 9.0}$

Hence, the average rate of change is $9.0 per hour

<u>(b) A function that models the table of values</u>

Let x represent hours, and y represent the earnings.

So, we have:

$\mathbf{y =m (x - x_1) + y_1}$

Where:

m =Rate = 9.0

So, we have:

$\mathbf{y = 9(x - 2.5) + 22.5}$

Expand

$\mathbf{y = 9x - 22.5 + 22.5}$

$\mathbf{y = 9x }$

Represent as a function

$\mathbf{f(x) = 9x }$

Hence, the function that models the table is: $\mathbf{f(x) = 9x }$

<u>(c) Amount earned for 7.5 hours</u>

This means that x = 7.5

So, we have:

$\mathbf{f(7.5) = 9 \times 7.5 }$

$\mathbf{f(7.5) = 67.5}$

Hence, the amount earned in 7.5 hours is $67.5

Read more about constant rates at:

brainly.com/question/23184115

4 0

2 years ago

12 - (-7)<br> I don’t know why but this is making my head spin because it’s not 5

adell [148]

Answer:

<u> </u><u>1</u><u>9</u><u> </u>

Step-by-step explanation:

=> 12 - (-7)

=> 12 + 7

=<u> </u><u>1</u><u>9</u><u> </u>

3 0

3 years ago

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What is the value of H in the diagram below?

Nuetrik [128]

Answer:

the value of h in the diagram is I hope hight

6 0

2 years ago