3 years ago

what number must be added to 3 and 8 so that the ratio of the first number to the second number is equal to 3 :4

1 answer:

3 0

The answer is 12.
Steps
If that number is x
(3+x)/(8+x)=3/4
"Cross multply"
4(3+x)=3(8+x)
12+4x=24+3x
x=12
To check: add 12 to 3 and 8. 3+12=15 and 8+12=20. 15/20=3/4

You might be interested in

Find each rate and unit rate?

VashaNatasha [74]

-60 miles per hour
-12 customers per day
-2.5 meters per second
-$1.59 per pound

You divide the first number by the second number for all of these

7 0

3 years ago

Kjnhbgvnfcbvhjnkml,;'.<br> ?}{:HJUbmgfcbdxvsc

Sergio [31]

Answer:

$3 for 1 book.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the perimeter and area of the figure?

Rudiy27

Perimeter is the sum of all outside dimensions:

5 + 3 + 1 + 2 + 4 + 5 = 20cm

Area = (5 x 5) - (2*1) = 25 - 2 = 23 cm^2

7 0

3 years ago

The complement of (10 Points)

loris [4]

Answer:

..?

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

3 yards of ribbon can be purchased for $10. How many yards can $5 purchase.

Stells [14]

Answer:

1.5 yards

Step-by-step explanation:

5 is half of 10

half of 3 is 1.5

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

6 0

3 years ago

what number must be added to 3 and 8 so that the ratio of the first number to the second number is equal to 3 :4​

what number must be added to 3 and 8 so that the ratio of the first number to the second number is equal to 3 :4