3 years ago

One number is four times another number. If their sum is 95, what are the numbers?

2 answers:

8 0

Let x be one number and y be the other.

#1 - Set up a system of equations.
4x = y
x + y = 45

#2 - Solve the system by substitution.
x + (4x) = 45
5x = 45
x = 9

(9) + y = 45
y = 36

IgorC [24]3 years ago

8 0

The numbers are 19 and 76.

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pogonyaev

Answer:

1, x = 80

2, z = 5.6

3, w = 18

Step-by-step explanation:

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3 years ago

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Micheal took his brother to the movies. Micheal paid regular price, but it cost $2 less for his brother at the child price. It c

iren [92.7K]

It cost $5 for his brother's ticket.

Step-by-step explanation:

Let,

Micheal's ticket price= x

His brother ticket price = y

According to given statement;

x+y=12 Eqn 1

y = x-2 Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$x+(x-2)=12\\x+x-2=12\\2x=12+2\\2x=14\\$

Dividing both sides by 2;

$\frac{2x}{2}=\frac{14}{2}\\x=7$

Putting x=7 in Eqn 2

$y=7-2\\y=5$

It cost $5 for his brother's ticket.

Keywords: linear equation, substitution method

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

4.2z + 3.8z simplify the expression (Use the operation symbols in the math palette as needed. Simplify your answer. Use whole n

alexandr1967 [171]

Answer:

Step-by-step explanation:

Since these are like terms, add the numbers together and then put the z on.

4 0

3 years ago

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Zinaida [17]

A is the answer i hope this helsp

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2 years ago

Solve for m. 5m+72=−2m+52 Drag and drop the answer into the box.

dybincka [34]

Answer:

-20/7

Step-by-step explanation:

5m +72 = -2m + 52

5m + 2m = 52-72

7m = -20

m = -20/7

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3 years ago

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