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3 years ago

Please help me solve these 3 problems. Solve for x state the properties used and check your answer. I’ll mark as brainliest.

Mathematics

1 answer:

Brut [27]3 years ago

4 0

Answer:

a) 5x=8 use a calculator and use distributive property

b) 22=3x+5 -18

22=3x-13

9=3x

x=3

distributive property

c)-48= -8x-20+5x-1

-48= -3x-21

-27= -3x

x=7

distributive property

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

on a certain hot Summer's Day 613 people use the public swimming pool the daily prices are $1.75 for children $2.25 for adults t

Elodia [21]

389 children and 224 adults were at the pool that day.

Step-by-step explanation:

Cost of one child ticket = $1.75

Cost of one adult ticket = $2.25

Total people = 613

Total receipts worth = $1184.75

Let,

Number of children = x

Number of adults = y

According to given statement;

x+y=613 Eqn 1

1.75x+2.25y=1184.75 Eqn 2

Multiplying Eqn 1 by 1.75

$1.75(x+y=613)\\1.75x+1.75y=1072.75\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(1.75x+2.25y)-(1.75x+1.75y)=1184.75-1072.75\\1.75x+2.25y-1.75x-1.75y=112.00\\0.50y=112.00$

Dividing both sides by 0.50

$\frac{0.50y}{0.50}=\frac{112.00}{0.50}\\y=224$

Putting y=224 in Eqn 1

$x+224=613\\x=613-224\\x=389\\$

389 children and 224 adults were at the pool that day.

Keywords: linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

6)a garden was square, but last year she made it makes or shortening one side 5 meters and the other 8 meters. If the area of th

Alekssandra [29.7K]

Answer:

let dimention of original garden be x

then (x-8)(x-5) = 180

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(x-20)(x+7)=0

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x = 20

original area = (20)^2

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2 years ago

51 is 15% of what number?

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3 years ago

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ivanzaharov [21]

Final answer: 1 3/6
In simplest form 1 1/2

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2 years ago