3 years ago

20% of what number is 40?

Mathematics

2 answers:

IRISSAK [1]3 years ago

8 0

20% of 200 equals 40

nordsb [41]3 years ago

5 0

40 is 20% of 100

so multiply .20 x 40

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Easy question. 10 points

kati45 [8]

Answer:

B 100%

Step-by-step explanation:

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3 years ago

Point E is located at (−2,4) and point F is located at (5,10) . What are the coordinates of the point that partitions the direct

lina2011 [118]

Solution:

Coordinates of Point E and F are (-2,4) and (5,10).

Suppose the Point M(x,y), divides the Line Segment Joining E (-2,4) and F (5,10) in the 7:3 ratio.

So, EM: MF= 7:3

Formula for internal Division

$x=\frac{mx_{2}+nx_{1}}{m+n}, y=\frac{my_{2}+ny_{1}}{m+n}$

$x=\frac{3 \times (-2) +7 \times 5}{3 +7},\\\\ x=\frac{-6 +35}{10}\\\\x=\frac{29}{10}\\\\ y =\frac{3 \times 4 +7 \times 10}{3+7}\\\\ y=\frac{12+70}{10}\\\\ y=\frac{82}{10}$

So,we get

x= 2.9

and , y= 8.2

6 0

4 years ago

30% of the cars in a particular parking lot are red. If there are 12 red cars, how many cars are parked in the parking lot? A) 2

hichkok12 [17]

The answer is C. 40 cars because .3x40 is 12.

6 0

3 years ago

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A machine paints 340 toys in 45 minutes. Write a ratio that can be evaluated to find the unit rate per hour.

sergejj [24]

I think it would be 68:9

4 0

3 years ago

4/7 = x+3/21 A) x=9 B) x=15 C) x= 33 3/4 D) x=91 - Would it be A??

gogolik [260]

4/7 = 12/21
12/21 = x + 3/21
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Hope this helped!!

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3 years ago

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