Ask question

Ask question

All categories

3 years ago

11

If 40% of a number is 56. What was the original Number

1 answer:

pentagon [3]3 years ago

7 0

56 divided by 40 is 1.4. Multiply that by 100 and you get 140.

This is the long way of doing it, but it's the way I've always done it.

You might be interested in

[30 POINTS] Please help!!!

Len [333]

Answer:

Part 1) $y=1.5x+5$

Part 2) $y=-(2/3)x-(11/3)$

Part 3) $y=0.25x+2.75$

Part 4) $y=-2x+5$

Part 5) $y=0.5x-1$

Part 6) The graph in the attached figure

Step-by-step explanation:

Part 1) we have

$m=3/2=1.5$

$point(-2,2)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-2=1.5(x+2)$

$y=1.5x+3+2$

$y=1.5x+5$

Part 2) we know that

If two lines are perpendicular

then

the product of their slopes is equal to minus one

so

$m1*m2=-1$

the slope of the line 1 is equal to

$m1=1.5$

Find the slope m2

$1.5*m2=-1$

$m2=-2/3$

Find the equation of the line 2

we have

$m2=-2/3$

$point(-7,1)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-1=(-2/3)(x+7)$

$y=-(2/3)x-(14/3)+1$

$y=-(2/3)x-(11/3)$

Part 3) we have

$m=1/4=0.25$

$point(1,3)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-3=0.25(x-1)$

$y=0.25x-0.25+3$

$y=0.25x+2.75$

Part 4) we have

$m=-2$

$b=5$ -----> y-intercept

we know that

The equation of the line into slope intercept form is equal to

$y=mx+b$

substitute the values

$y=-2x+5$

Part 5) we have that

The slope of the line 4 is equal to $-2$

so

the slope of the line perpendicular to the line 4 is equal to

$-2*m=-1\\m=(1/2)=0.5$

therefore

in this problem we have

$m=0.5$

$point(-2,-2)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y+2=0.5(x+2)$

$y=0.5x+1-2$

$y=0.5x-1$

Part 6)

using a graphing tool

see the attached figure

3 0

3 years ago

Steve and Bart sell cars for KC Complete Auto. Over the past year, they sold 640 cars. Assuming Steve sells 3 times as many as B

Sloan [31]

Steve sells 480 cars.

6 0

3 years ago

What is:<br> -6s²+-4.5=?

ddd [48]

Answer:

-6s² + - 4.5

= -6s² +(-4.5)

= -6s² - 4.5

3 0

2 years ago

Read 2 more answers

An equation of a line with a slope of -2 and a y-intercept of 2.5 is

Masja [62]

Answer:

its D

Step-by-step explanation:

8 0

2 years ago

2.6 less than the product of 4 and a number z

Alexandra [31]

I think The answer is B

3 0

3 years ago

Read 2 more answers