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Burka [1]
2 years ago
6

Suppose y varies directly as x², and y = 160 when x = 4. Find y when x = 6.

Mathematics
1 answer:
labwork [276]2 years ago
7 0

<u>Finding the constant of proportionality</u> :

  • y = kx²
  • 160 = k(4)²
  • k = 10

<u>Finding y when x = 6</u> :

  • y = 10(6)²
  • y = 10(36)
  • y = 360

The value of y is <u>360</u> when x = 6.

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Answer:

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Step-by-step explanation:

So the formula for this would be:

A = P(1+r/n)^nt

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P = stands for the principal, which is your original amount invested

r = shows the interest rate in decimal form

n =  stands for the number of compounding periods

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8 0
2 years ago
(fractions) 8/9 + 3/18
SVEN [57.7K]

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13/18

Step-by-step explanation:

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5 0
3 years ago
A vehicle uses 1 7/8 gallons of gasoline to travel 56 1/4 miles. At this rate, how many miles can the vehicle travel per gallon
sweet [91]

Answer:

  30 miles

Step-by-step explanation:

In this context, "per" means "divided by", so to find miles per gallon, divide miles by gallons:

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The vehicle can travel 30 miles per gallon of gas.

_____

My calculator divides mixed numbers directly, as many graphing calculators do. If you're working this out by hand, you can convert to improper fractions, then multiply the numerator by the inverse of the denominator.

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4 0
3 years ago
Help Help Help it's in khan academy
inna [77]

Answer:

Step 1 is wrong

Step-by-step explanation:

\frac{1}{4} r+ 2 = 10

\frac{r}{4}  + 2 = 10

\frac{r}{4}  = 10  -  2

\frac{r}{4}  = 8

r = 8 \times 2

r = 32

<h3>Hope it is helpful...</h3>
7 0
3 years ago
1. find the area 2.7m 12m<br><br>2. find the area 12 6ft<br><br>3. find the area 18ft 16ft
eduard

Answer:

Question 1 = 32.4ft Question 2 = 72ft Question 3  = 288ft

Step-by-step explanation:

Use multiplication.

7 0
2 years ago
Read 2 more answers
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