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Scilla [17]
3 years ago
7

31 is 20% of what number

Mathematics
2 answers:
andrezito [222]3 years ago
7 0
31 is 20% of 155 :3
zloy xaker [14]3 years ago
6 0
155 because that 20% is 1/5 of a number add 31 5 times or 31 times which is 155
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What is a equivalent ratio
slavikrds [6]

Answer:

Equivalent ratios are just like equivalent fractions. If two ratios have the same value, then they are equivalent, even though they may look very different! In this tutorial, take a look at equivalent ratios and learn how to tell if you have equivalent ratios.

8 0
2 years ago
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is
Viktor [21]

Answer:

There are approximately 171 families in the sample.

Step-by-step explanation:

Percentile meaning:

When a value V is said to be in the xth percentile of a set, x% of the values in the set are lower than V and (100-x)% of the values in the set are higher than V.

Twenty-four of the families in the sample turned on the television for 23 hours or less for the week. The 14th percentile of the data is 23 hours.

This means that 24 is 14% of the total number of families.

Approximately how many families are in the sample?

Using a rule of three.

24 - 0.14

x - 1

0.14x = 24

x = 24/0.14

x = 171.4

Rounding to the nearest integer

There are approximately 171 families in the sample.

5 0
2 years ago
Need Help with this question
Fantom [35]
82
The sum of the three angles is 180. One is given and the other we can figure out because it forms a straight line (180) with the angle to the left outside. The outside angle is 117, so 180-117 is 63.
So then add up the 3 angles in the triangle
63+35+y=180
y= 82
3 0
3 years ago
HELP URGENT I AM TIMED PLEASE SOLVE AND EXPLAIN YOUR ANSWER DUE IN 5 MINUTES :)
Ratling [72]

Answer:

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Step-by-step explanation:

8 0
3 years ago
You reflect the point ( -7, -6) across
Leokris [45]
Reflecting is pushing it across from one side to another.
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Sorry I'm late.
4 0
3 years ago
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