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3 years ago

Help pls ?? anyone ?

Mathematics

1 answer:

Citrus2011 [14]3 years ago

6 0

Answer:

Theyre both going to be 27.

Step-by-step explanation:

2n+21=4n+15

-2n -2n

21=2n+15

-15 -15

$\frac{6}{2}$ = $\frac{2n}{2}$

3=n

2n+21

2(3)+21=27

4n+15

4(3)+15=27

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In a certain chemical, the ratio of zinc to copper is 3 to 17. A jar of the chemical contains 799 grams of copper. How many gra

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3 years ago

I round to 900 I have twice as many hundreds as ones and all my digits are different but their sums are 18 can someone answer th

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Answer:

The number of once is 9.1

The number of hundreds is 8.9

Step-by-step explanation:

Given as :

The total of digits having ones and hundreds = 900

The sum of digits = 18

Let The number of ones digit = O

And The number of hundreds digit = H

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