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3 years ago

10

NEED HELP ASAP. By what percent will a fraction change if its numerator is decreased by 30% and its denominator is decreased by

20%?

1 answer:

joja [24]3 years ago

5 0

Answer:

0.7x/0.8y = x/y * 0.7/0.8 = x/y * 0.875

So the fraction is reduced by 12.5%

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Edward is driving a car on the highway. He drives for 28.5 miles in 3/8 of an hour. At this rate, how much distance can he cover

Rom4ik [11]

The distance covered in one hour is 76 miles.

<u>Step-by-step explanation:</u>

Edward drives a car for 28.5 miles.

Therefore, the distance he travels by the car = 28.5 miles.

The time it takes to drive 28.5 miles is 3/8 of an hour.

<u>The formula to find the rate :</u>

Rate = Distance traveled / Time taken in hours.

Here, the distance is 28.5 miles and time is 3/8 hour.

Rate = $28.5/ (3/8)$

<u>To find the distance covered in 1 hour :</u>

Let us assume, 'x' be the distance covered in one hour.

Rate = $x/1$

<u>Now, comparing the rates to find the x value :</u>

⇒ $28.5 / (3/8) = x /1$

⇒ $x = 28.5 \times 8/3$

⇒ $x = 228/3$

⇒ $x = 76$

Therefore, the distance covered in one hour is 76 miles.

4 0

3 years ago

Need help asap please

cestrela7 [59]

Answer:

9:49 is the answer because question say ratio is square of small and big

6 0

2 years ago

Eve measured a county park and made a scale drawing. The picnic area, which is 68 yards wide in real life, is 34 inches wide in

mote1985 [20]

Answer:

Eve used scale as 2 yards is equal to 1 inch.

Step-by-step explanation:

Given:

Actual Picnic area = 68 yards.

Drawing Picnic area = 34 inches.

We need to find the scale used by Eve.

Solution:

Now we can say that;

scale used by Eve can be calculated by dividing Actual Picnic area from drawing picnic area.

framing in equation form we get;

scale used by Eve = $\frac{68}{34} = 2\ yd/in$

Hence Eve used scale as 2 yards is equal to 1 inch.

8 0

3 years ago

Evaluate using the order of operation 3/4+5/6÷2/3

mel-nik [20]

Answer:

two 2

Step-by-step explanation:

First you divide the five over six into the two over three, then you add the quotient of that problem to three over four and the sum is your answer.

3 0

3 years ago

Defiantly need help with this one please HELP AND EXPLAIN

slega [8]

12 miles in 48 minutes
12/48 or 1/4 miles per minute
Times 60 is 15 miles per hour

7 0

3 years ago

Read 2 more answers