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Karo-lina-s [1.5K]
2 years ago
15

A surgery shows that 85 percent of students carry a backpack to school. Is there are 230 students in the school,how many student

s carry a backpack
Mathematics
1 answer:
GenaCL600 [577]2 years ago
4 0
The answer is 78% because of the heat
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Please help me 80 points for who answers :)
Lana71 [14]

Answer:

the sum of two negative integers is a negative integer. true

the sum of two positive integers is a positive integer. true

to find the sum of a positive and a negative integer take the absolute value of each integer and then subtract these values.

true

the additive inverse of any integer and its opposite is equal to 0. false

The sum of any integer and its opposite is equal to zero.

6 0
3 years ago
Read 2 more answers
PLEASE HELP simple geometry problem
vlabodo [156]

Perimeter is adding the 3 sides together. Since both triangles have the same perimeter set both triangles to equal:


(x+3 + x+3 + x+3) = (x+3 + 2x-3 + x)

Simplify each side:

3x+9 = 4x

Subtract 3x from each side:

x=9



5 0
3 years ago
jacks car used 18 gallons of gasoline to go 468 miles. At that rate, how many gallons would be used to go 754 miles? Explain you
matrenka [14]
Well if you take 468 and divide it by 18 you get 26 that 26mpg take 754 divide it by 26 and you get 29 and that's how many gallons he used
6 0
3 years ago
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Keith earns $40.00 in 4 hours. How much would he earn in 11 hours?
aivan3 [116]

$110.00

bc for every hour its $10

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6 0
2 years ago
Donna is running around a track.It takes her 3 1/2 minutes to run 1/4 of a lap.If she keeps running at the same speed,how long w
meriva

Answer:

70 minutes

Step-by-step explanation:

3 1/2 ÷1/4= 14 ×5= 70

so you first make 3 1/2 to an improper fraction, then you find the greatest common denominator between 7/2 and 1/4 which is 4, so you multiple 7/2 by 2 and get 14/4 and divide that by 1/4 and get 14minutes now multiply that by 5 laps and receive 70 minutes.

6 0
3 years ago
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