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Likurg_2 [28]
3 years ago
10

Help,Cause homework is hard :/

Mathematics
1 answer:
Nutka1998 [239]3 years ago
6 0
Hey there!

In my opinion, yes, because there are many reasons for this answer. But one reason is that when you get older, you'll be using 3.14 more than 22/7 because you don't really use fractions anymore, you use decimals.

^^That's my opinion, you might have something different^^

Hope this helps!
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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
10+x/2
Pavlova-9 [17]

Answer:

The answer will be 12 please mark me as brainliest

6 0
3 years ago
2
emmasim [6.3K]

Answer:

The answer is B

Step-by-step explanation:

hope this helps

5 0
3 years ago
Write the equation of the line that is parallel to the graph of y=-4x -9, and whose y-intercept is 3.
Olin [163]

Answer:

y = -4x +3

Step-by-step explanation:

the only thing you need from the equation is the slope, which is -4

y = -4x +3

3 0
3 years ago
there are 70 students in the school band. 40% of them are sixth graders, 20 % are seventh graders, and the rest are eight grader
zheka24 [161]

Answer:

28 are 6th

14 and 7th

40% are 8th

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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