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3 years ago

What is 63/80 as a percent?

Mathematics

2 answers:

DanielleElmas [232]3 years ago

8 0

This is
68/80 * 100%
78.75%

Romashka [77]3 years ago

6 0

63/80 x 100 = 78.8%

You divide normally but multiply by 100 (moving the decimal over two places).

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Order the following rational numbers from least to greatest -3/4, 2.5, 0, -0.80, 5/3

zheka24 [161]

Answer:

-0.80, -3/4, 0, 5/3, 2.5

Step-by-step explanation:

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3 years ago

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Find the slope of the straight line that passes through (–2, –4) and (3, –5)

KIM [24]

Answer:

YOur answer would be -1/5.

Step-by-step explanation

rise/run

-4--5/-2-3

=-1/5

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Solve this Inequality 1 > -1 - w

Rom4ik [11]

Answer:

$\displaystyle -2 < w$

Step-by-step explanation:

1 > −1 - w

+ 1 + 1

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$\displaystyle \frac{2}{-1} > \frac{-w}{-1} \\ \\ -2 < w$

Whenever you divide\multiply by a negative, you reverse the inequality symbol.

I am joyous to assist you anytime.

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3 years ago

Find two positive even consecutive integers such that the square of the smaller integer is 10 more than the larger integer

mafiozo [28]

Answer:

the numbers are $4,6$

Step-by-step explanation:

Let

x-------> the smaller even consecutive integer

x+2-------> the larger even consecutive integer

we know that

$x^{2}=(x+2)+10$

solve for x

$x^{2}-x-12=0$

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-x-12=0$

$a=1\\b=-1\\c=-12$

substitute in the formula

$x=\frac{1(+/-)\sqrt{-1^{2}-4(1)(-12)}} {2(1)}$

$x=\frac{1(+/-)\sqrt{49}} {2}$

$x=\frac{1(+/-)7} {2}$

$x=\frac{1(+)7} {2}=4$ ------> the solution (must be positive)

$x=\frac{1(-)7} {2}=-3$

therefore

the numbers are $4,6$

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3 years ago

3 out of 4 students in Nayo's class have brought in permission slips for the next field trip. There are 32 students in the class

Marina86 [1]

8
3/4
x/32

Solve for x, = 24

Subtract 24 from 32
Also another way
4 x n = 32
n = 8
3x8 = 24
Subtract and same result

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