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Tcecarenko [31]
3 years ago
7

9. The ages of A and B are in the ratio 3:5. Four years later,

Mathematics
2 answers:
Tom [10]3 years ago
8 0

Answer:

A = 15  B = 25       in four years  19+29 = 48

Step-by-step explanation:

age A and B ratio is 3 to 5

A+4 + B+4 = 48

    A + B  = 40

    A/B = 3/5     A = 3B/5

    A + B  = 40

 3B/5 + B  = 40

   3B  + 5B = 200          multiple both sides by 5

       8B  = 200

         B  =  25

         A  = 3B/5

         A  = 3(25)/5

         A  = 15

Mariulka [41]3 years ago
7 0

Answer:

15

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
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2. The hundredths model is shaded to represent a division
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Answer:

Option D

Step-by-step explanation:

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So the equation is,

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2 years ago
Which of the following could be used to estimate the quotient?
notka56 [123]
The last one i think

5 0
2 years ago
What is the solution to the equation 32x − 1 = 243? Question 18 options: A) x = 2 B) x = 3 C) x = 4 D) x = −2
Mama L [17]

Answer:

x = 4

Step-by-step explanation:

To solve this equation, first you want to write the whole thing out.

32x - 1 = 243

Next you want to get the variable by itself, so you are going to use inverse operations. in the equation, it is 32x - 1, so you are going to add one to both sides, getting you this:

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Now for the final step you are going to get x alone, so you are going to use inverse operations once more and divide 32 on both sides getting you your answer.

x = 4

Now if you want to check your work simply plug in x, and if it is equal, you got the correct answer!

I hope this helped and good luck with your math!

I'm really sorry if I'm wrong though, even though I already finished this unit a while ago I struggled on this one even though it is so easy compared to the equations I have now.

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