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Vlad [161]
3 years ago
14

40% of the students in a school band play brass instruments while 4 students play strings instruments

Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0
10 students (brass)=40% of band
4 students (strings)=16% of band 
? students (other)=44% rest of band
14/56%=?/44%
(cross multiply to find ?){don't forget to turn percents into decimals}
?=11
There are 25 students in total in the band.

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At the local video game store, a popular game went from $120 to $85 in a weeks time. What is the percent decrease of the item? R
Svetllana [295]

Answer: 29%

Step-by-step explanation:

The game went from the price of $120 to $85.

In calculating percentage decrease, use the following formula:

= (New Price - Old price) / Old price

= (85 - 120) / 120

= -35 / 120

= -29%

<em>Price therefore decreased by 25%</em>

6 0
3 years ago
The sum of the ages of Jeremy and Kimberly is 64 years. 8 years ago, Jeremy's age was 2 times Kimberly's age. How old is Jeremy
TiliK225 [7]

Answer:

36.666 (The six keeps going)

Step-by-step explanation:

In this question you'll be trying to find out what x is.

(x-8), this is from the amount of years ago and 2(56-x) is from subtracting 8 with 64 and the 2 came from the fact that Jeremy is twice the age.

(x-8)=2(56-x)

x-8=102-2x

Now we want to have x by itself  so we'll add 2x on both sides to remove the -2x from the right side.

3x-8=102 (Add up on both sides)

3x=110 (Divide by 3)

x=36.666

4 0
3 years ago
Jason drove 110 miles in 2 3/4 hours. What was Jason's speed in miles per hour?
REY [17]

Answer:

It is 40 miles per hour.

Step-by-step explanation:

turning the 2 3/4 to 2.75, you can divide 110 by 2.75 to get 40.

brainliest if i am right? uwu

6 0
3 years ago
Write an algebraic equation twice a number increased by 10 is 50
salantis [7]
You need to represent it as   2x + 10 = 50
4 0
3 years ago
Which is the solution to the inequality?<br> y + 15 less-than 3
Arte-miy333 [17]

Hey there!

"less than" is "<"

y+15<3

Solve it:

y<3-15

y<-12

Hope everything is clear.

Let me know if you have any questions!

Always remember: Knowledge is power!

6 0
2 years ago
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