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maria [59]
3 years ago
5

80% of C is 20. What is c?

Mathematics
1 answer:
Aleks [24]3 years ago
6 0

Answer:

c is

Step-by-step explanation:

If 80% of C is 20, 40% of C is 10, 20% is half of that, so 5

20% x 5 = 100%

5 x 5 = 25

C = 25

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Which value of x from the set {5, 6, 7, 8} makes this equation true? 3x = 24
Tju [1.3M]

Answer:

Value x = 8 make the equation true .

Step-by-step explanation:

Given  : 3x = 24.

To find : Which value of x from the set {5, 6, 7, 8} makes this equation true?

Solution : We have given 3x = 24.

The equations are true when the Left hand side and right hand side of the equation are equal.

Then,

For x = 8 .

3 ( 8) = 24

24 = 24 .

Hence,

Left hand side = Right hand side.

Therefore, Value x = 8 make the equation true .

3 0
3 years ago
Can someone help please
sineoko [7]

A: Commutative Property of Addition

3 0
3 years ago
Need help with 8-9.
ANTONII [103]
So it is 5cm to 1m or 5cm to 1000cm
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10. if the room is 15cm on one side I can say that the ratio to actual size is 15/x. and scale is 1/200 so:
15/x = 1/200
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other side:
20/x = 1/200
4000 = x
7 0
3 years ago
A proportional relationship i shown below.Select the equation that correctly represents the relationship between the cost and th
enyata [817]
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8 0
2 years ago
The picture shows the graphs of the functions expressed by a formula of the following type: y = kx + b.
ollegr [7]

Answer:

line 1: y= 1x+ 2

line 2: y= -1x-0.5

(usually 1 is omitted but I added for clarity)

Step-by-step explanation:

slope (x)= yfinal-yintial/xfinal-xinitial

b= where line intersects y axis

line 1:  (-1,0), (0.5,1.5)

(1.5-0)/(0.5-(-1))

(1.5)/(1.5)

slope= 1x

y=x+ 2

line 2: (-0.5,0), (0.5,-1)

(-1-0)/(0.5-(-0.5))

(-1)/(1)

slope= -1x

y=-x-0.5

7 0
3 years ago
Read 2 more answers
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