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vfiekz [6]
3 years ago
8

CORRECT ANSWER GETS BRAINLIEST

Mathematics
1 answer:
nikklg [1K]3 years ago
5 0

Answer:

21 and 6

Step-by-step explanation:

a will be the larger, b the smaller:

a - b = 15

2b + 3a = 75

First, we'll solve the first equation for a in terms of b:

a = b + 15

Then substitute that in for a in the second equation to get a numerical value for b:

2b + 3(b + 15) = 75

2b + 3b + 45 = 75

5b = 30

b = 6

Next, we'll get a numerical value for a:

a - b = 15

a - 6 = 15

a = 21

Check the math:

2(6) + 3(21) = 12 + 63 = 75

Please lmk if you have questions.

You might be interested in
What is the expression 4(3+2) called
Anna71 [15]
An Algebraic Expression

Hope you have a great day!
3 0
3 years ago
Show how u got the answer 309×42
luda_lava [24]
                3            
                1
                390
              x  42
               -------
                1282
              1564
          ----------------
                       
the answer would be 16380
Hope this helped :)
4 0
4 years ago
Given that W is directly proportional to the square of V, and W = 320 when V = 8, find W when V = 9.
lorasvet [3.4K]

The value of W when V = 9 is 405

<h3>How to solve for W?</h3>

The variation is a direct variation from W to V^2.

This means that:

W = kV^2

Where k is the constant of variation.

W = 320 when V = 8 means that:

320 = k * 8^2

Evaluate

320 = 64k

Divide both sides by 64

k = 5

Substitute k = 5 in W = kV^2

W = 5V^2

When V = 9, we have:

W = 5 * 9^2

Evaluate

W = 405

Hence, the value of W when V = 9 is 405

Read more about direct variation at:

brainly.com/question/6499629

#SPJ1

3 0
2 years ago
157,130,000 in scientific notation
Sindrei [870]

Step-by-step explanation:

157,130,000

=1.5713 × 10⁸

8 0
3 years ago
Simplify: 3(-2c + 4d - 5e) + 9c-8d
Olenka [21]
The answer is 3c + 4d - 15e

1. apply the distributive property
3(-2c)+3(4d)+3(-5e)+9c-8d

2. simplify
-6c+12d-15e+9c-8d

3. add -6c and 9c
3c+12d-15e-8d

4. subtract 8d from 12d
3c+4d-15e

i hope this helped ! <3
4 0
3 years ago
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