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Sergeu [11.5K]
3 years ago
6

Help plz

Mathematics
2 answers:
Yuki888 [10]3 years ago
8 0
A) V * (2/5) = I
B) V = I + 42

Substituting A into B
V = (2/5) V + 42
3/5 V = 42
Victor has 70 tools
Ilya has 28 tools

together they have 98 tools


WINSTONCH [101]3 years ago
8 0

Answer:

They have 98 tools together

Step-by-step explanation:

  • We are going to call x the number of tools Ilya has.
  • If Victor has 42 more tools than Ilya, then he has x + 42 tools.
  • But we know that the ratio of Victor's tools to Ilya's is 5:2, so the actual number of tools they have must satisfy this radio.

If we write this last paragraph in an equation and solve for x we would get: \frac{5}{2} =\frac{x+42}{x} \\5x=2(x+42)\\5x=2x+84\\5x-2x=84\\3x=84\\x=28

Therefore Ilya has 28 tools and Victor has x+42 = 28 + 42 = 70 tools. And together they have:

70 + 28 = 98 tools.

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shepuryov [24]

Answer:

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4 0
3 years ago
When 2/3 is added to a certain number, the sum is 3 greater than twice the number. part 1: set up an equation using n to represe
Gennadij [26K]
2/3 + n = 2n + 3 <== ur equation
2/3 - 3 = 2n - n
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-7/3 = n <== ur solution

or
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2 + 3n = 6n + 9
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7 0
2 years ago
Evaluate the function:<br><br> f(x)=4x−1, find f(9)
Eddi Din [679]

Answer:

f(9) = 35

Step-by-step explanation:

To solve this, you can take 9 and replace both x's with it and then complete the equation;

f(x) = 4x - 1

f(9) = 4(9) - 1

f(9) = 36 - 1

f(9) = 35

Hope this helps!

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anything that ends in 0 like .10

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