3 years ago

If x varies inversely as y and x=12 when y=9, find x when y=54

Mathematics

1 answer:

beks73 [17]3 years ago

3 0

Answer:

x = 72

Step-by-step explanation:

We set the two equal to each other

x = 12/y = 9 is equal to x/y = 54.

In order for 9 to get to 54, you have to multiply it by 6. Since you multiplied the denominator with 6, you have to do the same with the numerator. 12 times 6 is 72.

x = 72

You might be interested in

Alice needs 3/7 kilograms of flour for making a cake. How many of flour does she needs for making 42 cakes?

Oduvanchick [21]

Hey there!

3/7 is needed for 1 cake

If she needs to make 42 cakes, then multiply the amount for 1 by 42

42 × 3/7 = 126/7 = 18

She needs 18 kilograms of flour to make 42 cakes

Hope this helps :)

3 0

3 years ago

Mark took a loan out for $25,690 to purchase a truck. At an interest rate of 5.2% compounded annually, how much total will he ha

Inga [223]

Answer:

I think the answer is 1335.88

Step-by-step explanation:

5.2% of 25,690 is 1335.88

3 0

3 years ago

Read 2 more answers

75 points! Will mark brainliest! Only answer if you know it! Random answers will be reports because I’m trying to get the true r

Anna [14]

Answer:

y=1/2x

Step-by-step explanation:

Find the slope of the original line and use the point-slope formula y−y1=m(x−x1) to find the line parallel to y=1/2x−8

I know this isn't much but please don't report me. I got this answer ):

6 0

3 years ago

X + 5 ≤ 13 what's the answer for this question?

wariber [46]

Answer:

Inequality Form: x ≤ 8

Interval Notation: (-∞,8]

Step-by-step explanation:

x + 5 ≤ 13

Subtract 5 on both sides...

13 - 5 = 8

You're left with x ≤ 8

Inequality Form: x ≤ 8

Interval Notation: (-∞,8]

6 0

3 years ago

Find the mean and median 0,5,5,9,11,15

il63 [147K]

The mean is 7.5 you add up all the numbers and then divide by the amount of numbers there is

8 0

2 years ago