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4vir4ik [10]
3 years ago
15

Solve the equation for y: 2x + 5y = 20

Mathematics
2 answers:
lbvjy [14]3 years ago
6 0

Answer:

y = \frac{20-2x}{5}

Step-by-step explanation:

Given

2x + 5y = 20 ( isolate the term in y by subtracting 2x from both sides )

5y = 20 - 2x ( divide both sides by 5 )

y = \frac{20-2x}{5}

navik [9.2K]3 years ago
4 0
The Answer will be y=4
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spayn [35]
So remember that percent means parts out of 100 so
52%=52/100=0.52

26%=26/100=0.26
'of' means multily

0.52 times x=65
divide both sides by 00.52
x=125




26% of a number is 39
0.26 times y=39
divide both sides by 0.26
y=150


x=125
y=150
y is greater


you know that becuase we know that 52% is exatly twice of 26% so therefor, if x=y then 52% of x is half of 26% of y so to compare them, we just divide the 65 number by 2 to find 26% of that number to get 65/2=32.5
32.5<39 so x is smaller number
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3 years ago
–50 × 4 – (–20) =<br><br> i hate math
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7 0
4 years ago
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tekilochka [14]

Answer:

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