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3 years ago

Which fraction is equivalent to (7-3)*3/10^4-10^2

Mathematics

1 answer:

VashaNatasha [74]3 years ago

4 0

Answer:

C.8/1125 is the answer......

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Which number is located between 15 and 20 on a number line?

jeyben [28]

Answer: 17.5 is located between them.

Step-by-step explanation:

To find out which number is located between the numbers, find their mean average which sum of the numbers divide by the number of values.

15 + 20 = 35

35 / 2 = 17.5

8 0

3 years ago

Having trouble with this problem

Artist 52 [7]

Answer:

3,300 i THINK i used a calculator

Step-by-step explanation:

7 0

3 years ago

At a basketball game, an air cannon launches T-shirts into the crowd. The function y=−1/8x^2 + 4x represents the path of a T-shi

Juliette [100K]

Answer:

The T-shirt lands in the bleachers at a height of 14 feet.

Step-by-step explanation:

The point where they meet is the solution of the simultaneous system of equations:

$y = -\frac{1}{8}x^2+4x$ ...........................................(1)

$3y = 2x - 14$ ..............................................(2)

From (2),

$y = \frac{2}{3}x-\frac{14}{3}$ .................................................(3)

Substituting (3) in (1),

$\frac{2}{3}x-\frac{14}{3} = -\frac{1}{8}x^2+4x$

Multiply through by 24 (the LCM of 3 and 8, the denominators of the fractions)

$(24\times\frac{2}{3}x)-(24\times\frac{14}{3}) = (-24\times \frac{1}{8}x^2)+(24\times4x)$

$16x - 112 = -3x^2+96x$

$3x^2-80x -112 = 0$

$(x-28)(3x+4) = 0$

$x-28 = 0$ OR $3x+4=0$

$x=28$ OR $x = -\frac{4}{3}$

The value of y represents the height.

Substituting for x in (3)

$y = \frac{2}{3}\times28-\frac{14}{3} = \frac{56}{3} - \frac{14}{3} = 14$

$y = \frac{2}{3}\times(-\frac{4}{3})-\frac{14}{3} = -\frac{8}{9} - \frac{14}{3} = -\frac{50}{9}$

We discard the negative answer.

Hence, the T-shirt lands in the bleachers at a height of 14 feet.

6 0

3 years ago

What is the value of StartFraction negative 8 (17 minus 12) over Negative 2 (8 minus (negative 2)) EndFraction?

lana [24]

-2
8(17-12)/ -2(8+2).
A negative and a negative equals a plus
8(5) / -2(10)
40 / -20
= -2

6 0

3 years ago

Read 2 more answers

Manufactured 50.88 pair. Customer paid 90.10 and customer price included 6.25% sales taxes . What is the mark up?

-Dominant- [34]

Answer:

The markup (in percentage) is 66.67%

The markup (in dollars) is $33.92

Step-by-step explanation:

First, we will find the sales price of the product (excluding sales tax).

Let sales price be "x", so we can say:

x increased by 6.25% is 90.10

Note: 6.25/100 = 0.0625

Thus, we can write an equation and solve for x now:

$x + 0.0625x = 90.10\\1.0625x=90.10\\x=\frac{90.10}{1.0625}\\x=84.8$

The markup is a percentage of the cost.

The markup is the difference in cost and sales price, divided by cost. Then we multiply by 100 to get percentage. So:

MarkUp = $\frac{84.8-50.88}{50.88}*100=66.67$

The markup (in percentage) is 66.67%

In dollars, it will be $33.92

3 0

4 years ago