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Bas_tet [7]
4 years ago
13

Mike and Jun Wen were practicing the long jump during track practice. Mike jumped 9.5 feet. Jun Wen jumped 11.75 feet. How much

farther did Jun Wen jump than Mike?
21.25 feet
18 feet
2.125 feet
2.25 feet
Mathematics
2 answers:
Ymorist [56]4 years ago
8 0
2.25 hope
That helps :::))))
andriy [413]4 years ago
3 0
2.25 feet. 11.75 - 9.5 = 2.25.
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What is the first step when adding 1.45 x 108 and 3.9 x 107?
garik1379 [7]

We need to add 1.45 x 10^8 and 3.9 x 10^7.

Please see..

We have given numbers in scientific form.

<em>We can't add the decimal numbers in front, because those numbers are being multiplied with 10 exponents and the exponents of 10's are not same.</em>

<em>So, we always convert the exponents of 10 as same.</em>

<em>1.45 x 10^8 could be converted to 14.5 x 10^7 to get exponent of 10 as 7 as other number 3.9 x 10^7 also has exponent of 10 as 7.</em>

<em>After this step we can just add the 14.5  and 3.9 and put × 10^7 with it.</em>

So, first correct step is:

<h3> 2. Convert 1.45 x 108 to 14.5 x 107.</h3>
8 0
3 years ago
How can you determine whether a number is a solution of an equation ?
raketka [301]
Solution or an equation? A solution should have the equal sign next to it. And an equation should have with an unknown solution till you solved it. For ex:

5,534,234              9+9 
Solution                    equation

Also solutions won't have an equation. Like that.
7 0
3 years ago
The store bought the bike at a wholesale price. The bike store marked up the wholesale cost of the bike by 60%. What was the who
marin [14]

Answer: The wholesale cost of the bike = $100

Step-by-step explanation:

Let x = wholesale cost of the bike

As per given,

Selling price = cost price + (Mark up percent) x ( cost price)  (i)

Selling price of bike = $160

Mark up percent = 60% =0.60

Substitute values in (i) , we get

160= x+0.6x\\\\\Rightarrow\ 160=1.6x\\\\\Rightarrow\ x=\dfrac{160}{1.6}\\\\\Rightarrow\ x= 100

Hence, the wholesale cost of the bike = $100

3 0
3 years ago
3. Alice took out a simple interest loan to purchase carpet for her house. The interest on the loan
hjlf

Answer:

The price of the carpet was \$3,697.20

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the Price of the carpet

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=3\ years\\ P=\$?\\ I=\$1,081.43\\r=0.0975

substitute in the formula above

1,081.43=P(0.0975*3)

1,081.43=P(0.2925)

Solve for P

P=1,081.43/(0.2925)

P=\$3,697.20

4 0
3 years ago
Expanded form of 670,200,640
Alona [7]
600,000,000+ 70,000,000+ 200,000+ 600+ 40
8 0
4 years ago
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