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olga55 [171]
3 years ago
6

(THIS IS A ANSWER FOR SOME PEOPLE FOR THIS MATH QUESTION)

Mathematics
1 answer:
Phantasy [73]3 years ago
7 0

Answer:

omg thank you I needed this answer

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The sum of the ages of Kristen and Ben is 32. Four years ago Kristen was twice as old as Ben. How old are they both now?
Elan Coil [88]

Let us say that:

K = age of Kristen

B = age of Ben

 

From the problem, we make the equations:

eqtn 1: K + B = 32

eqtn 2: (K – 4) = 2 (B – 4)

 

Simplifying eqtn 2:

K – 4 = 2 B – 8

K = 2 B – 4

 

Plugging in this to eqtn 2:

(2 B – 4) + B = 32

3 B – 4 = 32

3 B = 36

B = 12

 

From eqtn 2:

K = 2 B – 4 = 2 (12) – 4 = 20

 

So Kristen is 20 while Ben is 12.

5 0
4 years ago
What is the exact volume of the cylinder with a radius of 13 and a height of 30?
torisob [31]
The volume would be <span>15927.87
so
</span>V ≈ 15927.87to be sure with my answer.
8 0
3 years ago
What percent of the values are between 10 and 30? Round to the nearest tenth of a percent if necessary.
skad [1K]

Answer: 33.3%

Step-by-step explanation: I did this on saavas. also for part b the answer is 32.5.

6 0
3 years ago
5. Over what interval is the following graph DECREASING? *
xxTIMURxx [149]

Answer:

(3, 13)

Step-by-step explanation:

The curve decreases from x = 3 to x = 13.

Answer: (3, 13)

4 0
3 years ago
there are 98 girls at Ross elementary there are 15 less boys then girls how many boys and girls are at Ross elementary​
Luba_88 [7]
Answer: 98-15= 83 boys
8 0
3 years ago
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