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3 years ago

If 75% of a number is 60, what is 20% of the number

Mathematics

2 answers:

Colt1911 [192]3 years ago

6 0

I hope this is right i think the answer is 40

Elan Coil [88]3 years ago

3 0

I think it is 16 how i got that is by finding the number that 60 was 75% of which is 80 then i took 80 * 20 / 100 to get 16 which should 20 precent of 80 hope that helps

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Solve 6 + 5 √ 2 4 9 − 2 x = 7

NISA [10]

$6+5\sqrt{249}-2x=7 \\-2x=7-6-5\sqrt{249} \\-2x\approx-77.9 \\x\approx\frac{-77.9}{2}\approx38.95$

Hope this helps.

7 0

3 years ago

Please helped this is for my math final.

hammer [34]

Answer:

[-8,8]

Step-by-step explanation:

6 0

2 years ago

The length of a rectangle is three times its width of the perimeter of the rectangle is 40 yd find its length and width

schepotkina [342]

Answer:

Step-by-step explanation:

L= 3W

Perimeter = 2(l+w) = 40

2(3w+w) = 40

2*4w = 40

8w =40

w = 5

l = 3*5 = 15

3 0

2 years ago

Please Help ASAP with Math

vampirchik [111]

Answer:

5.33

Step-by-step explanation:

move the 4 out of the summation because just a constant multiplier

4 *sum from 1 to 10 for (1/4)^(n-1) [sorry i don't know how to write sums using latex)

The formula for the geometric sum is :

First term*(1-multiplier^n)/(1-multiplier), formally $\frac{a_1(1-r^n)}{1-r}$

Here multiplier is 1/4

First term is (1/4)^(1-1) = 1

Thus the value of sum is $1*(1-(1/4)^1^0)/(1-1/4)$ which equals $(1- (1/4)^1^0)*4/3$

We factored out 4 so its $4*(1-(1/4)^1^0)*4/3$ which is $16/3 * (1- (1/4)^1^0)$

This equals 5.333328247 which is 5.33 to the nearest hundredth

5 0

2 years ago

37/8 as a mixed number

Alexxandr [17]

4 5/8
you see how many time 8 goes into 37 which is 4 and then you have 5 left over

8 0

3 years ago