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3 years ago

9

Suppose Jolene played 56 tennis matches in one year, and won 38 of them. What percent of the matches did she win? Round your ans

wer to the nearest whole percent.
A: 58 percent
B: 42 percent
C: 73 percent
D: 68 percent

1 answer:

Delicious77 [7]3 years ago

5 0

Answer:

D. 68%

Step-by-step explanation:

38/56 = 0.678

Move the decimal over 2 spots to get 67.8

Round that up to 68

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Juan wishes to build a garden at the bottom of his property. He wants to split it in two, like the diagram below, so he can plan

SCORPION-xisa [38]

Answer:

20 ft by 60 ft

Step-by-step explanation:

"What should the dimensions of the garden be to maximize this area?"

If y is the length of the garden, parallel to the stream, and x is the width of the garden, then the amount of fencing is:

120 = 3x + y

And the area is:

A = xy

Use substitution:

A = x (120 − 3x)

A = -3x² + 120x

This is a downward facing parabola. The maximum is at the vertex, which we can find using x = -b/(2a).

x = -120 / (2 · -3)

x = 20

When x = 20, y = 60. So the garden should be 20 ft by 60 ft.

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3 years ago

The original price is $40.90 and the sale price is 30% off what would be two different expressions for the equation?

Ann [662]

Answer:

(40.90 ÷ 100) × 30

And

0.3 × 40.90

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3 years ago

When a set of coordinates on a preimage is multiplied by -n instead of n, the coordinates of the image rotate about the center o

dem82 [27]

Tumhen yah Kahan Se Mila

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3 years ago

Read 2 more answers

What is the value of x in the equation 1,331x with the exponent of 3 -216 =0

dimulka [17.4K]

The answer is x=6/11.
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3 years ago

1. There are two differnt maps of Ohio. The scale on the first map is 1 cm to 10 km. The distance from Cleveland to Cincinnati i

xeze [42]

Answer:

1. 0.8 cm

2. 1.6 cm

Step-by-step explanation:

1.

The scale for 2nd map is 1 cm to 50 km, that means "1 cm on map" is "50 km in real life".

We already know distance from Cleveland to Cincinnati is 40 km, which is less than 50, so we know the distance on map would be less than 1 cm.

So we set up ratio and figure out (let x be distance on map from Cleveland to Cincinnati):

$\frac{1}{50}=\frac{x}{40}\\50x=40\\x=\frac{40}{50}\\x=0.8$

Hene, 0.8 centimeters would be the distance in 2nd map

2.

A scale of 1:50 means 1 cm equal 50 cm

So, 0.8m would be

0.8 * 100 = 80 cm

Hence, 80 cm would be represented by 80/50 on the map, that is:

$\frac{80}{50}=1.6$

That is 1.6 centimeters

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3 years ago