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2 years ago

8) How many packs of DVD's can you buy with 77 dollars if one pack costs 11 dollars ?

Mathematics

1 answer:

Vladimir79 [104]2 years ago

5 0

You can buy 7 packs, because if you multiply 11x7 you would get 77. hope that helps

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A faucet in a large tank can fill the tank in 12 hours. However, there is a hose in the tank which would be able to empty the ta

Kruka [31]

It would take the faucet 18 hours to fill the tank because 18/12=1.5. That means it will be 1.5 times slower to fill the tank up with the hose on. 1.5*12=18.

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3 years ago

The equation a=1/2(b^1+b^2)h can be determined the area, a, of a trapezoid with height, h, and base lengths, b^1 and b^2 Which a

Evgesh-ka [11]

The complete question is as follows.

The equation a = $\frac{1}{2}(b_1 + b_2 )h$ can be used to determine the area , a, of a trapezoid with height , h, and base lengths, $b_1$ and $b_2$ . Which are equivalent equations?

(a) $\frac{2a}{h} - b_2 = b_1$

(b) $\frac{a}{2h} - b_2 = b_1$

(d) $\frac{2a}{b_1 + b_2} = h$

(e) $\frac{a}{2(b_1 + b_2)}$ = h

Answer: (a) $\frac{2a}{h} - b_2 = b_1$ ; (d) $\frac{2a}{b_1 + b_2} = h$ ;

Step-by-step explanation: To determine $b_1$ :

a = $\frac{1}{2}(b_1 + b_2 )h$

2a = ( $b_1 + b_2$ )h

$\frac{2a}{h} = b_1 + b_2$

$\frac{2a}{h} - b_2 = b_1$

To determine h:

a = $\frac{1}{2}(b_1 + b_2 )h$

2a = $(b_1 + b_2)h$

$\frac{2a}{(b_1 + b_2)}$ = h

To determine $b_2$

a = $\frac{1}{2}(b_1 + b_2 )h$

2a = $(b_1 + b_2)h$

$\frac{2a}{h} = (b_1 + b_2)$

$\frac{2a}{h} - b_1 = b_2$

Checking the alternatives, you have that $\frac{2a}{h} - b_2 = b_1$ and $\frac{2a}{(b_1 + b_2)}$ = h, so alternatives A and D are correct.

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3 years ago

Which expression is equivalent to (-1/3)(6x + 15) -3 *

Vedmedyk [2.9K]

-2x + 12 is the answer .

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3 years ago

Maggie runs 1/4 of a mile in 1.3 minutes. Olivia runs 2/3 of a mile in 2.9 minutes. Who runs faster? How much faster does the pe

4vir4ik [10]

Answer:

maggie

Step-by-step explanation:

bcause

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3 years ago

If a loan option had been available for your food truck for the $50,000 at 4% interest for 6 years instead of 4 would you have t

stira [4]

Answer:

It depends.

Step-by-step explanation:

For 6 years:

$50000*(1.04)^6=\$63266$

On average, you would have to be profiting:

$\frac{63266}{6}=\$10544$ per year

For 4 years:

$50000*(1.04)^4=\$58492$

On average, you would have to be profiting:

$\frac{58492}{4} = \$14623$ per year.

It would be better to have the longer term option - although you will be paying off more in total, you would be paying off a smaller portion of your earnings.

However, you may want to pay off the loan faster as you would no longer have to worry about it, and it would be cheaper to pay off over the shorter period.

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2 years ago