MATHEMATICS MIDDLE SCHOOL

11 is what percent of 55

Answers

Answer 1
Answer:

The number that is 20 percent of 55 is 11.

We have,

To find what percent 11 is of 55, we can set up the following proportion:

11/55 = x/100

To solve for x, we can cross-multiply:

11 x 100 = 55 x x

1100 = 55x

Now we can divide both sides of the equation by 55:

1100/55 = x

Simplifying, we get:

20 = x

Therefore,

11 is 20% of 55.

Learn more about percentages here:

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Answer 2
Answer: 11    x
55   100
20

11 times 100/55=20

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If a car factory checks 360 cars and 8 of them have defects, how many will have defects out of 1260?Please help!!!

Answers

Answer:

You should expect 28 defected cars.

Step-by-step explanation:

your equation here is 8/360 = x/1260

so if this is the case then     8*1260= 10080

10080/360= 28


28 will have defects out of 1260

Which angle is coternal with 130 degrees?

Answers

Answer:

- 230°

Step-by-step explanation:

A coterminal angle is the given angle ± 360n ( where n is an integer )

Given 130°

Then a coterminal angle = 130° - 360° = - 230°

OR 130° + 360° = 490°

934,218 rounded to the nearest 10,000s

Answers

934,218 rounded to the nearest 10,000 is 930,000
93422 that would be our numbee

I'm confused how to do this??

Answers

1) Find x
The equation is:
4x=64

x=64/4=16

answer: x=16º

2)Find y:
The equation is:
(2y)+(3y+5)=180
5y=180-5
5y=175
y=175/5
y=35

Answer: y =35º

Find the measure of each angle...
3)∠a
2y+4x+a=180
2(35º)+4(16º)+a=180º
70º+64º+a=180º
a=180º-70º-64º=46º

Answer: ∠a=46º.

4)∠b
a+b=180º
46º+b=180º
b=180º-46º
b=134º

Answer: ∠b=134º

5)∠c
a+c=180º
46º+c=180º
c=180º-46º
c=134º

Answer: ∠c=134º

6)∠d
112º+d=180º
d=180º-112º
d=68º

Answer: ∠d=68º

7) ∠e
64º+d+e=180º
64º+68º+e=180º
e=180º-64º-68º
e=48º

Answer: ∠e=48º

8)∠f
e+f=180º
48º+f=180º
f=180º-48º
f=132º

Answer: ∠f=132º

How many 15 minutes equal a hour
40 minutes equal a hour
45
25
and 12
written as a fraction or mixed number

Answers

45 12/25 I think that is it

What is 2/4 + 4/5 - 7/10 ? Please help

Answers

Make sure they have all common denominators
(2)/(4) + (4)/(5) - (7)/(10)

(2)/(4) * (5)/(5) = (10)/(20)

(4)/(5) * (4)/(4) = (16)/(20)

(7)/(10) * (2)/(2) = (14)/(20)

(10)/(20) + (16)/(20) - (14)/(20)

Add (10)/(20) + (16)/(20) = (26)/(20)
(26)/(20) - (14)/(20) = (12)/(20)

To simplify, you must find the largest common factor which 4
In (12)/(20)
12÷4=3 and 20÷4=5

The answer is (3)/(5)
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