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dexar [7]
3 years ago
12

From 85 books to 133 books the % change is?

Mathematics
2 answers:
natima [27]3 years ago
7 0
The percentage change is 36%
lord [1]3 years ago
4 0
Here’s a written explanation on how to solve these problems!! hope this helps you :))

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I NEED HELP FAST PLEASE!!!
hammer [34]

So, we need to figure out how much times the body size of the flea it can jump. First, we need to figure out the size of the flea: <em>2^-4=0.0625</em>

Now that we have the size of the flea, we need to figure out how high it can jump: <em>2^3=8</em>

After we figure out the size of the flea, we need to divide 8 by .0625 because it is inverse operations to multiplication: <em>8/.0625=128</em>

Answer: The flea can jump 128 times higher than it's body size.

3 0
3 years ago
Solve 4 - 2(-5a - 10)=30 and justify each step
Sergeeva-Olga [200]
First you would do parenthesis according to the PEMDAS(Parenthesis, Exponents, Multiply, Divide, Add, Subtract) Rule

4 -2(-5a -10) = 30

4 + 10a + 20 = 30

Now you need to add 4 and 20 because they are on the same side

24 + 10a = 30

Now subtract 24 on both sides

24 + 10a = 30

-24. -24


10a = 6

Last divide 10 from both sides


10a/10. = 6/10

a= 6/10

Last simplify (optional but recommended)

a = 3/5 or 0.6


Hope this helped :)


A = 0.6
5 0
3 years ago
this is a problem associated with a right triangle. the following question is: if w= 12.5mm and x=16mm, what is the measure of a
Elanso [62]
2.5 to angle a '''' and please right the whole question 
5 0
3 years ago
Use the Distributive Property to write each expression as an equivalent algebraic expression.
xxMikexx [17]

Answer:

21 + 3a

Step-by-step explanation:

3 (7+a)

distribute 3 into parentheses:

21 + 3a

7 0
3 years ago
Read 2 more answers
Jason is 6 feet tall, and at 6 pm, his shadow was 15 feet long. At the same time, a tree next to Jason had a 25-foot shadow. Wha
IRISSAK [1]

Answer:

10

Step-by-step explanation:

set up a ratio problem

6 feet/15 long shad= x/25 shad

15x = 150

x = 10

3 0
3 years ago
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