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2 years ago

4(7x +49) = 112 what is x

Mathematics

2 answers:

sladkih [1.3K]2 years ago

5 0

Answer:

-3

Step-by-step explanation:

Divide both sides by 4

7x+49 = 28

Subtract 49 from both sides

7x = -21

Divide by 7

x = -3

trasher [3.6K]2 years ago

4 0

Answer:

x = -3

Step-by-step explanation:

4 (7x + 49) = 112 divide both sides by 4

4 ÷ 4(7x + 49) = 112

7x + 49 = 28 now subtract 49 from both sides

7x + 49 - 49 = 28 - 49

7x = -21

x = -3

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vovikov84 [41]

Answer:

128,8,28,36

Step-by-step explanation:

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2 years ago

B) Find g (-3) for g(x) = 3x + 5

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Step-by-step explanation:

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2 years ago

The cost of a ticket to the circus is $14.00 for children and $32.00 for adults. On a certain day, attendance at the circus was

Evgesh-ka [11]

400 children and 600 adults bought tickets.

Step-by-step explanation:

Given,

Cost of one child ticket = $14

Cost of one adult ticket = $32

Total attendance = 1000

Revenue generated = $24800

Let,

x be the number of children.

y be the number of adults.

According to given statement;

x+y=1000 Eqn 1

14x+32y=24800 Eqn 2

Multiplying Eqn 1 by 14

$14(x+y=1000)\\14x+14y=14000\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(14x+32y)-(14x+14y)=24800-14000\\14x+32y-14x-14y=10800\\18y=10800\\$

Dividing both sides by 18

$\frac{18y}{18}=\frac{10800}{18}\\y=600$

Putting y=800 in Eqn 1

$x+600=1000\\x=1000-600\\x=400$

400 children and 600 adults bought tickets.

Keywords: linear equations, subtraction

Learn more about subtraction at:

#LearnwithBrainly

8 0

3 years ago