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7nadin3 [17]
3 years ago
9

Melissa, Brian, and shen have a total of $85 in their wallets. Brian has 3 times what Shen has. Shen has $10 less than Melissa.

How much do they have in their wallets?
Mathematics
1 answer:
Novay_Z [31]3 years ago
6 0

Answer:

Shen has $15, Brian has $45, and Melissa has $25

Step-by-step explanation:

Let x represent how much money Shen has.

Since Brian has 3 times what Shen has, his amount can be represented by 3x.

Since Shen has $10 less than Melissa, Melissa's amount can be represented by x + 10.

Create an equation to represent the situation, and solve for x:

x + 3x + x + 10 = 85

5x + 10 = 85

5x = 75

x = 15

So, Shen has $15 in their wallet.

Find how much Brian has by multiplying this by 3:

15(3) = $45

Find how much Melissa has by adding 10 to this:

15 + 10 = $25

Shen has $15, Brian has $45, and Melissa has $25.

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Step-by-step explanation:

3x - a = 2x - 5 ( subtract 2x from both sides )

x - a = = 5 ( add a to both sides )

x = a - 5

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3 years ago
The Volume of a cube is 231 cubic inches. what is the closest to the length of each edge of the cube?
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4 years ago
204.6 is what percent of 125? Round to the nearest tenth.
Zina [86]

Answer:

255.8

Explanation:

To get the solution, you are looking for, you need to point out what we know.

1. We assume, that the number 125 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 125 is 100%, so we can write it down as 125=100%.

4. We know, that x is 204.6% of the output value, so we can write it down as x=204.6%.

5. Now we have two simple equations:

1) 125=100%

2) x=204.6%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

125/x=100%/204.6%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 204.6% of 125

125/x=100/204.6

(125/x)*x=(100/204.6)*x       - we multiply both sides of the equation by x

125=0.48875855327468*x       - we divide both sides of the equation by (0.48875855327468) to get x

125/0.48875855327468=x

255.75=x

x=255.75

now you  have:

204.6% of 125=255.75

If you round 255.75  to the nearest tenth, it would be 255.8 because rounding to the nearest tenth the number will be  7 because 7 is in the tenth place in 255.<u>7</u>5, so you would round up because  anything about the number 5 you will round up and anything below 5 you round down and  when you round up you will get 255.8 which is your answer.

Hope this helps :)

5 0
3 years ago
It takes a turtle 3 1/4 hours to walk 1 1/2 miles how many hours does it take to walk one mile (show the work please)​
Sliva [168]

Answer:

2  1/6 hours.

Step-by-step explanation:

It walks 1 1/2 miles  in 3 1/4 hours.

So it walks 1 mile in (3 1/4 ) /  (1 1/2) hours.

= 13/4 / 3/2

= 13/4 * 2/3

= 26/12 hours

=  2  1/6 hours.

7 0
3 years ago
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