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3 years ago

Paul has a collection of nickels and

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

4 0

Answer:

#nickels = 50

#dimes = 100

Step-by-step explanation:

system of equations:

n + d = 150

.05n + .10d = 12.50

let n = '150 - d' and substitute this into the second equation

.05(150-d) + .10d = 12.5

7.5 - .05d + .10d = 12.5

.05d = 5

d = 5/.05

d = 100

n = 50

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Equations

morpeh [17]

Answer:

w = 10

Step-by-step explanation:

To find the value of w, you need to isolate w on one side.

You can start by subtracting 2 from both sides. What you do to one side of the equation, you have to do to both.

12 - 2 = 10

So now w is isolated and is equal to 10.

w = 10

You can check your work by replacing w with 10 in the equation.

10 + 2 = 12

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2 years ago

ANSWER AND STEPS PLEASE. HELP

Ilia_Sergeevich [38]

Answer:

A. 75.36 in^3

Step-by-step explanation:

r =3 in

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2 years ago

Mhanifa please help fast! I will mark brainliest!

Mama L [17]

Answer:

1.33

Step-by-step explanation:

if you re-arrange the position of the first triangle and divide the

corresponding sides you'll get 1.33

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3 years ago

Read 2 more answers

What is the inequality of 2/3 and 4/6?

zhannawk [14.2K]

2/3 and 4/6 are equal.

3 0

2 years ago

How many quarters are thee in 4 1/2

Neko [114]

Hi there!

quarter:18

1.Find common denominator in 4 and 1/2:

$4=\frac{1}{4}$

$\frac{1}{2}=\frac{2}{4}$

2.Convert 4 2/4 into mixed number:

$4\frac{2}{4}=\frac{18}{4}$

3.Divide 18/4 by 1/4:

$\frac{18}{4}*\frac{1}{4}=18$

Therefore, there is 18 quarters in 4 1/2.

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2 years ago