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Dovator [93]
2 years ago
15

Solve pls brainliest

Mathematics
1 answer:
enot [183]2 years ago
3 0
36 is 45% of 80
36/80 multiple both nominator and denominator by 100/100.
If using a calculator simply 36 divided by 80 and multiply by 100 giving you 45%
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Mary is three times as old as her son. In 12 years Mary will be twice as old as her son. How old is each of them now? ANSWER QUI
BartSMP [9]

Mary is 36 and her son is 12

m=3s

m+12=2s+24

12= -s+24

s=12

3 0
2 years ago
Read 2 more answers
write an expression that equals (x-13). It must have at leat two sets of parentheses and one minus sogn.Verify that it is equal
IRISSAK [1]

You can perform all kind of operation that are one the inverse of the other, so that the value won't change. For example, you can multiply and divide by 2:

\dfrac{1}{2}(2(x-13))

Or add and subtract 5:

\left(\dfrac{1}{2}(2(x-13))+5\right)-5

4 0
3 years ago
The weight of mr nazeer is 7 times that of his son. What's the ratio of their weights?
Mekhanik [1.2K]

Answer:

<h3>7:1</h3>

Step-by-step explanation:

Let the weight of mr nazeer be x

Let the weight of his son be y

If the weight of mr nazeer is 7 times that of his son, then x = 7y

To get the ratio of their weight:

Ratio = weight of father/weight of son

Ratio = 7y/y

Ratio = 7/1

Ratio = 7:1

Hence the ratio of their weights is 7:1

3 0
3 years ago
a catalog store has 6% of its orders returned for a refund the owner predicts that a new candle will have 812 returns out of the
a_sh-v [17]
6% percent of 16842 is 1009.44. The predicted amount is 812. This is a reasonable estimation, so I agree with the prediction.
7 0
3 years ago
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(z:9)*15-47=28 plz !!!
nikitadnepr [17]
I hope this helps you

4 0
3 years ago
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