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MatroZZZ [7]
3 years ago
6

The value of y varies directly with x. When y=4, x=12. What is the value of y when x is 42

Mathematics
1 answer:
Anna35 [415]3 years ago
5 0

Answer:

y would be 14

Step-by-step explanation:

If y=4 and x=12, that means x is 3 times the amount of y. Therefore, if x is 42, y should be three times less the amount. 42/3 is 14 and that's your correct answer!

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aev [14]

7.625

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8 0
3 years ago
To solve -83 = -16 + x, which of the following could you do to both sides of the equation
gavmur [86]

Answer:

add 16 to each side

Step-by-step explanation:

You could add 16 to each side.

-83 = -16 + x

+16      +16

-67 = x

x = -67

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8 0
4 years ago
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If an investment account starts with $3,900, and grows with 2.1% interest, compounded annually, how much is the account worth af
zalisa [80]

Answer:

$5327

Step-by-step explanation:

Use the formula for calculating compound interest

A(t)=P(1+r/n)^n⋅t,

where A(t) is the balance of the account, P is the principal, r is the annual interest rate (as a decimal), n is the number of times the interest is compounded each year, and t is the time (in years). We are given that P=$3,900, r=0.021, n=1, and t=15. Substituting the values into the formula and using a calculator to evaluate, we find

A(t)=P(1+r/n)^n⋅t = $3,900(1+0.0211)^(15)(1) ≈ $5,326.61

So the final answer is $5,327.

3 0
3 years ago
Six reduced by five and five-sevenths.#Fractions
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M<y = 30 is the correct answer
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