3 years ago

YASSSSSSSSSSSSSSSSSSSSSSS

1 answer:

7 0

Answer:

Nobody cares, this is a forum that has to do with questions for questions regarding school, not unintelligent stuff like this

Step-by-step explanation:

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Need help 8th grade math

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Answer:

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3 years ago

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Livvi invests $19,430 in a savings account at her local bank which pays 1.8% simple annual interest. She also deposits $16,470 i

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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

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4 years ago

Given x : y: z = 5:1:3 and z - y = 28. find the value of x + y

Vera_Pavlovna [14]

Answer:

x + y = 84

Step-by-step explanation:

Given

x : y : z = 5 : 1 : 3, then

$\frac{x}{y}$ = 5 ( multiply both sides by y )

x = 5y ←

and $\frac{y}{z}$ = $\frac{1}{3}$ ( cross- multiply )

3y = z

Substitute z = 3y into z - y = 28

3y - y = 28

2y = 28 ( divide both sides by 2 )

y = 14 ← ←

Substitute y = 14 into x = 5y

x = 5 × 14 = 70 ← ←

Substitute y = 14 into z - y = 28

z - 14 = 28 ( add 14 to both sides )

z = 42 ← ←

Thus x = 70, y = 14 and z = 42

Hence x + y = 70 + 14 = 84

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3 years ago