3 years ago

Which of the following is equivalent to the expression 72 - 4?

Mathematics

1 answer:

Gnesinka [82]3 years ago

5 0

I think the answer is B

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ki77a [65]

3y+15=4y-3

Subtract 3y from both sides

15=y-3

Add 3 to both sides

Y=18

4(18)-3

72-3

69 both angles are 69

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3 years ago

Select the statement that does not correctly use probability to describe an

tatuchka [14]

I think its D since it’s known that if today is Tuesday tomorrow will be Thursday

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2 years ago

No work needed! pythagorean theorem.

Ulleksa [173]

2) x = 4

4) x = sqrt(106) = 10.3

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3 years ago

Bobby put 1/3 of his lawn mowing money into his savings and uses the remaining 2/5 to buy a video game. If he has $12 left, how

Alexeev081 [22]

Given:

Bobby put 1/3 of his lawn mowing money into his savings

He uses the remaining 2/5 to buy a video game.

He has $12 left.

To find:

The amount did he have at first.

Solution:

Let x be the initial amount.

Bobby put 1/3 of his lawn mowing money into his savings. So, the remaining amount is

$x-\dfrac{1}{3}x=\dfrac{2}{3}x$

He uses the remaining 2/5 to buy a video game. Then the remaining amount is

$Remaining=\dfrac{2}{3}x-\dfrac{2}{3}x\times \dfrac{2}{5}$

$Remaining=\dfrac{2}{3}x-\dfrac{4}{15}x$

$Remaining=\dfrac{10x-4x}{15}$

$Remaining=\dfrac{6x}{15}$

$Remaining=\dfrac{2x}{5}$

It is given that the remaining amount is $12.

$12=\dfrac{2x}{5}$

$12\times 5=2x$

$60=2x$

Divide both sides by 2.

$\dfrac{60}{2}=x$

$30=x$

Therefore, Bobby have $30 at first.

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3 years ago

Why is 1 3 + 1 3 NOT equal to 2 6 ?

katrin [286]

It is a trick question 13+13 DOES equal 26

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3 years ago