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2 years ago

Hi, I need help with a practice SAT question on math. The problem is in the picture.

Mathematics

1 answer:

bagirrra123 [75]2 years ago

3 0

Answer:

2.5

Step-by-step explanation:

The equation will have infinite solutions when it is a tautology--when both sides say exactly the same thing.

Eliminate parentheses, match coefficients, and solve for b.

ax +ab = 4x +10

a = 4 . . . . . . coefficient of x

ab = 10 . . . . constant

Since we know a, we can find b:

4b = 10

b = 10/4 . . . . . . . divide by 4

b = 5/2 = 2.5 . . .express in your favorite form

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kolbaska11 [484]

4x - 2x + 8 = 6(x + 4) Given

(4x - 2x) + 8 = 6(x + 4)

2x + 8 = 6(x + 4) Combine like terms

2x + 8 = (6)(x) + (6)(4)

2x + 8 = 6x + 24 Distributive Property

2x - 6x + 8 = 6x - 6x + 24

-4x + 8 = 24 Subtraction Property of Equality

-4x + 8 - 8 = 24 - 8

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4 0

3 years ago

13 gallons of water are used to completely fill 3 fish tanks. If each tank holds the same amount of water, how many gallons will

Pepsi [2]

Answer:

4 1/3

Step-by-step explanation:

12/3=4

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7 0

2 years ago

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malfutka [58]

Answer:

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4 0

2 years ago

Please help and thank you

ycow [4]

Answer:

D) 130 workers

Step-by-step explanation:

We have the equation, y = 2x + 40, and y, 300 (since the y-coordinate represents the # of bottles made), so we can solve for x, the number of workers needed.

Substitute: 300 = 2x + 40

Subtract: 260 = 2x

Divide: x = 130

Since x = 130 when y = 300, 130 workers are required to make 300 bottles in a day.

4 0

2 years ago

After Friday's football game, Megan and her friends go out for ice cream. They share the Mega Mountain sundae and finish the who

Natalija [7]

Answer: c= $( 5 x 5.20)

Step-by-step explanation:

Given: Total people =5

Money paid by each person = $5.20

Total cost of the sundae = (Number of people ) x (Money paid by each person)

Total cost of sunday : c= 5 x ($5.20)

i.e.Total cost of sunday = $(5 x 5.20)

i.e.Total cost of sunday = $ 26

Hence, the required equation to represent the total cost (c) of the sundae:

c= $( 5 x 5.20)

3 0

2 years ago