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weeeeeb [17]
3 years ago
10

Tom's age is four times that of his sister. When you add Kim's age to her brother's, you get 15. How old are Tom and Kim?

Mathematics
1 answer:
Kamila [148]3 years ago
3 0

Answer:

Kim is 3, Tom is 12

Step-by-step explanation:

4x + x = 15

combine like terms

5x = 15

divide both sides by five

x = 3

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2 years ago
Tallulah's family took a road trip to the Grand Canyon. Tallulah slept for the last 129 miles of the trip. If the total length o
KIM [24]

Answer:

43% of the trip

Step-by-step explanation:

1. Create an Equation

300 miles/100*x percent=129 miles <=== Make an equation so you can find the percent she slept of the trip

2. Solve

300 miles/100*x percent=129 miles

3x=129 <=== 300 divided by 100 is 3 and 3 times x is also 3x

3x/3=129/3 <=== divide by 3 from both sides

x=43

Since x is 43 that means 129 equals 43% which is how much Tallulah slept

of the trip.

3. Check

300 miles/100*43%=129 miles <=== Substitute x with 43%

3x43%=129

129=129 <=== 129 is 129 which means that the answer is correct!

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2 years ago
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kondor19780726 [428]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Could someone help me with these problems, please :)​
Elanso [62]

Answer:

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Step-by-step explanation:

4 0
2 years ago
Mrs. Gilbert is interested in determining how many students spend 4 or more hours doing homework each week. She asks every stude
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Answer:

C. Biased, because she only asked students on honor roll.

Step-by-step explanation:

Since Mrs. Gilbert's goal was to find how many students that spent >4 hours and not how many students that earned Honor Roll that spent >4 hours, the data is biased. Choose C.

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