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3 years ago

Use division to determine whether the ratios form a proportion.

2 answers:

4 0

A. Yes. They form a proportion.

Because: 1/4, 6/24.

Reduce 6/24 to lowest terms. 6 into 6 is 1 and 6 into 24 is 4.

6/24 = 1/4. This is same as the other 1/4.

Leya [2.2K]3 years ago

3 0

A. yes. they form a proportion
1/4 and 6/24

6/24=1/4
1/4=.75
1/4=.75

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In tennis, a first serve can be an ace, a fault, or it can be returned. In one match, a tennis player hit 24 aces, which was 25

Anastaziya [24]

Answer:

16 faults

Step-by-step explanation:

<u><em>The correct question is</em></u>

In tennis, a first serve can be an ace, a fault, or it can be returned. In one match, a tennis player hit 24 aces, which was 2/5 of all her first serves. If 1/3 of her first serves were returned, how many of the tennis player's first serves were faults?

Let

x -----> the number of all her first servers

y ----> the number of first services returned

z ---> the number of first services faults

we know that

The number of aces plus the number of returned plus the number of faults must be equal to the number of all her first services

$x=24+y+z$

step 1

Find out the number of all her first servers

we have that

$24=\frac{2}{5}x$

Solve for x

$x=24(5)/2\\x=60\ first\ services$

step 2

Find out the number of first services returned

$y=\frac{1}{3}x$

substitute the value of x

$y=\frac{1}{3}(60)=20\ returned$

step 3

Find out the number of first services faults

$x=24+y+z$

we have

$x=60\\y=20$

substitute and solve for z

$60=24+20+z$

$60=44+z$

$z=16\ faults$

6 0

3 years ago

Help me please I don’t understand

denis23 [38]

<h3>Answer: A) around 80 cm</h3>

=========================================

Explanation:

The perimeter around the circle, aka circumference, is found through this formula

C = 2*pi*r

That's for a full circle. However, we're dealing with semicircles here, so we cut that in half to get pi*r to represent the curved distance around half the circle.

For the outer larger semicircle, that curved distance is exactly 14pi

For the inner smaller semicircle, that curved distance is 7pi, since 7 is half of 14.

The total curved portions is 14pi+7pi = 21pi

Then we add on the last straight line portion that's 14 cm long to get a total perimeter of 21pi+14

This is the exact perimeter in terms of pi.

The last thing to do is replace pi with 3.14 and simplify

21pi+14 = 21*3.14+14 = 79.94

This value rounds to 80

3 0

3 years ago

A printer takes two and one half seconds to print a flyer it took 75 seconds to print a batch of flyers without stopping how man

galina1969 [7]

Answer:

Step-by-step explanation:

A printer takes two and one half seconds to print a flyer it took 75 seconds to print a batch of flyers without stopping how many flyers were printed with a multiplication and division equation and solve?

From the above question:

2 1/2 seconds = 1 flyer

75 seconds = x flyer

Cross Multiply

2 1/2 seconds × x flyer = 75 seconds × 1 flyer

7 0

3 years ago

A bag contains 3 blue marbles, 9 green marbles and 11 yellow marbles.Twice you draw a marble and replace it. Find p (blue,then g

denis-greek [22]

3/23 * 9/23 =27/529
hope that helps

5 0

4 years ago

Please please please!

Alexandra [31]

Answer:

longer side = √507 cm, shorter side = 13 cm

Step-by-step explanation:

sin60 = opposite side/26cm

opposite side = √507 cm

cos60 = adjacent side/ 26cm

adjacent side = 13 cm

longer side = √507 cm, shorter side = 13 cm

6 0

3 years ago