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3 years ago

four-fifths of the senior class went to prom. if 324 seniors went to prom, how many are there in the senior class

1 answer:

3 0

The answer to your question is 405, because look divide 324 by 4 becasue thats how many fifths are being used then multiply the answer which is 81 by 405

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Please help me thank you if u do

astra-53 [7]

Answer:

Step-by-step explanation:

1/2 * ( 9 * 6 * 10)

1/2 * 540

270 $in^{2}$

7 0

3 years ago

The ratio of fish to ducks at the water's edge was 5 to 2. If there were 28 in all, how many were fish?

densk [106]

Answer:

20 fish.

Step-by-step explanation:

Convert ratio to fraction:

There were 5 / (5 + 2) = 5/7 of fish.

So number of fish = 5/7 * 28

= 20.

8 0

2 years ago

Three vertices of parallelogram ABCD

hammer [34]

Answer:

(0, -8)

Step-by-step explanation:

The distance must be equal from C to A and points B to D.

6 0

3 years ago

at the dog show there are 4 times as many boxers as spaniel if there is a total of 30 dogs. how many dogs are spaniel

alexgriva [62]

4x+x = 30

5x = 30

x = 30/5 =6

6*4 = 24 boxers

and 6 spaniels

5 0

3 years ago

Find a number such that 10 less than two thirds the number is one fourth the number

Ivan

Answer:

the number is 24

Step-by-step explanation:

10 less than two thirds the number is one fourth the number

Let the unknown number be x

two third of the number is $\frac{2}{3} x$

10 less than two third the number becomes

$\frac{2}{3}x-10$

one fourth the number becomes $\frac{1}{4}x$

10 less than two thirds the number is one fourth the number

$\frac{2}{3}x-10=\frac{1}{4}x$

We need to solve for x

LCD is 3*4 = 12

Multiply the whole equation by 12

$\frac{2*12}{3}x-10*12=\frac{1*12}{4}x$

8x - 120 = 3x

add 120 on both sides

8x = 3x + 120

Subtract 3x on both sides

5x = 120

divide by 5 on both sides

x= 24

3 0

3 years ago