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3 years ago

Need help ASAP! I know I am dumb.. But.. 3/7=?/28 What is the ? mark?

Mathematics

1 answer:

Nookie1986 [14]3 years ago

3 0

Answer:

Step-by-step explanation:

write it out:

3/7 x x/28

cross-multiply and solve:

3*28 and 7x

3 x 28 = 84

make an expression:

84 = 7x

solve the expression:

7x/7 = 1

84/7 = 12

x =12

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J.k. Rowling and R.L. Stone are both ready hunger games . J.k. Reads 35 pages every 2 hours and R.L. Reads 45 pages every 3 hour

san4es73 [151]

Answer:

The rate of change for each reader is :

For J K Rowling : 17 and a half pages per hour

For R L Stone : 15 pages per hour

Step-by-step explanation:

Here the reading rate of each reader is given as:

J.K. Reads 35 pages every 2 hours.

So, the number of pages read by J K in 2 hours = 35 pages

⇒ The number of pages read per hour = 35 / 2 = 17 . 5 pages

So, the pages read by J K Rowling in 1 hour is 17 and a half pages.

R L Stone reads 45 pages every 3 hours.

So, the number of pages read by R L in 3 hours = 45 pages

⇒ The number of pages read per hour = 45 / 3 = 15 pages

So, the pages read by R L Stone in 1 hour is 15 pages.

Hence, the rate of change for each reader is :

For J K Rowling : 17 and a half pages per hour

For R L Stone : 15 pages per hour

5 0

3 years ago

Find the area of the triangle

Svetradugi [14.3K]

Answer:

180

Step-by-step explanation:

A=1/2*b*h

A= 1/2*8*25

180

5 0

3 years ago

Round 3,047 to the nearest hundredth

Aleksandr-060686 [28]

It should be 3,000
------------------------

3 0

3 years ago

PLZ HELP I BEG YOU ITS URGENT

harkovskaia [24]

Answer:

$638.25

Step-by-step explanation:

The interest is 5.5% yearly and it is simple interest.

Now, if we consider a deposit of $575 into the bank account that earned 5.5% simple interest each year, then after 2 and half years James will get interest only for 2 years as the 3rd year's interest will be added after the 3rd year.

Therefore, if no money was deposited into or withdrawn from the account, then after 2.5 years the sum will be

$575(1 + \frac{5.5 \times 2}{100}) = 638.25$ dollars. (Answer)

7 0

3 years ago

Please help! HURRY & ANSWER

Oxana [17]

No because, if they need to make it 10 yards in the beginning and then lose 6 yards then they need 16 yards to make it not just 12

8 0

3 years ago

Read 2 more answers