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Naddik [55]
3 years ago
14

Kelsi's mom, Sue, is 8 times as old as Kelsi. In 10 years , Sue will be 3 times as old as Kelsi. How old are Kelsi and Sue now?

Mathematics
2 answers:
777dan777 [17]3 years ago
7 0
8x+10=3(X+10)
8x+10=3x+30
5x= 20
X=4
Kelsi 4
Mom 32
Effectus [21]3 years ago
6 0

Answer: The present age of Kelsi = 4 years.

The present age of Sue=32 years.

Step-by-step explanation:

Let x be the present age of Kelsi.

Then, Sue's present age = 8x

According to the question, after 10 years Kelsi's's age = x+10

Now, the Sue's age after 10 years will be given by :-

8x+10=3(x+10)\\\\\Rightarrow\ 8x+10=3x+30\\\\\Rightarrow8x-3x=30-10\\\\\Rightarrow5x=20\\\\\Rightarrow\ x=4

Hence, The present age of Kelsi = 4 years.

The present age of Sue = 8(4)=32 years.

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2c +3 = 3c - 4<br> Help me please
VashaNatasha [74]

Hey there!

<u>Solve </u><u>the </u><u>equation</u><u>:</u>

  • Answer :

c = 7 ✅

  • Explanation

2c + 3 = 3c - 4

<em>></em><em>></em><em> </em><em>Subtract </em><em>3</em><em> </em><em>from </em><em>both </em><em>sides </em><em>:</em>

<em> </em>

2c + 3 - 3 = 3c - 4 - 3

2c = 3c - 7

<em>></em><em>></em><em> </em><em>Substrat </em><em>3</em><em>c</em><em> </em><em>from </em><em>both </em><em>sides </em><em>:</em>

2c - 3c = 3c - 7 - 3c

-c = -7

<em>></em><em>></em><em> </em><em>Divide</em><em> </em><em>each </em><em>side </em><em>by </em><em>-</em><em>1</em><em> </em><em>:</em>

-c / -1 = -7 / -1

c = 7

  • Let's verify:

2c + 3 ⇔ 2(7) + 3 ⇔ 14 + 3 ⇔ 17

3c - 4 ⇔ 3(7) - 4 ⇔ 21 - 4 ⇔ 17

Therefore, your answer is c = 7 .

Mor about equation :

brainly.com/question/27353929

Have a good day :)

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