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nignag [31]
3 years ago
11

20 is 40% of what number

Mathematics
2 answers:
pantera1 [17]3 years ago
6 0

it depends what the number is

Sav [38]3 years ago
6 0

Answer:

50

Step-by-step explanation:

20 divided by the percent value as a decimal 0.4 is 50

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UNO [17]
For the answer is 10
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2 years ago
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11 nickels to 11 dimes are what ratio?
castortr0y [4]

Answer: 11:11

Step-by-step explanation:

The ratio is 11 nickles to 11 dimes, Take away the names of the coins and there is your answer. (If i'm correct)

7 0
3 years ago
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Can someone show me how to do it and the answer
Virty [35]

Answer:

B

Step-by-step explanation:

The equation of a circle is

(x-h)^2 + (y-k)^2 = r^2

h= 9, k = -7

r = 2, so r^2 = 4.

We now know that the equation must equal 4, so we can rule out answers A and C.

Plug in the values for h and k to get

(x-9)^2 + (y+7)^2 = 4

Choice B is correct!

3 0
3 years ago
48 / -6 = <br> i might need more help
Vikki [24]

Answer:

-8

Step-by-step explanation:

You just simplify

8 0
2 years ago
a roller skating rink offers a special rate for birthday parties. On the samr day, a party for 10 skaters cost $107 and a party
olga nikolaevna [1]

Answer:

$119

Step-by-step explanation:

Let

x -----> the number of skaters

y -----> the cost for birthday parties

we have the points

(10,107) and (15,137)

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute the values

m=\frac{137-107}{15-10}

m=\frac{30}{5}=6\ \frac{\$}{skater}

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=6\\point\ (10,107)

substitute

y-107=6(x-10)

step 3

Convert to slope intercept form

y-107=6x-60

y=6x-60+107

y=6x+47

step 4

How much would a party for 12 skaters cost?

For x=12 skaters

substitute the value of x in the equation and solve for y

y=6(12)+47

y=\$119

4 0
2 years ago
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