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N76 [4]
3 years ago
14

Number 15 really need help

Mathematics
2 answers:
Leokris [45]3 years ago
8 0
$9 a day for 8 days.

So, for every day that went by they earned $9. In other words the answer is the Amount of Money Earned per day multiplied by the number of days!

So!

$9 * 8days

Or you can also think of it as this: 
9+9+9+9+9+9+9+9

Our answer comes out to be 72! 
Shkiper50 [21]3 years ago
3 0
9 times 8= 72 so 250 minus 72 is $178 that they still need to make.
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Mason takes his pulse. He counts 48 beats in 2/3 minute. Mason goes on a bike ride and takes his pulse again. Now he counts 81 b
Kazeer [188]

Answer:

Therefore,  beats per minute did  increase for 36.

Step-by-step explanation:

48: 2/3=x:1

48=2/3 × x

x=3/2×48

x=72

81:3/4=x:1

81=x×3/4

x=4/3×81

x=108

Therefore,  beats per minute did  increase for 36.

5 0
3 years ago
A study that looked at beverage consumption used sample sizes that were much smaller than previous national surveys. One part of
Sholpan [36]

Answer:

Step-by-step explanation:

In statistics, about 68 percent of values come in one standard deviation of the mean by using a standard normal model.   Approximately 95% of the data were all within two standard deviations from the mean. Almost all of the data are in the range of three standard deviations of the mean (roughly 99.7%).

The 68-95-99.7 law, also known as the Empirical Rule, is based on this evidence. 68 percent of the data values of a naturally distributed data collection of small children with a mean of 8.2 and a standard deviation of 10.8 would be between -2.2 and 19.0.

Within a mean of 14.1 as well as a standard deviation of 8.2, 68 percent of the data values in a usually distributed data collection of older children would be between 5.9 and 22.3.

However, we cannot conclude that the data is naturally distributed since the real actual data vary from the usual normal curve computed above.

Hence, various measures like either goodness of fit or theory testing, would be used for this.

5 0
3 years ago
How much wrapping paper did he use ,in square inches
Paul [167]

Answer:

96.76 square inches

Step-by-step explanation:

5.2x5.2=27.04

6.7x5.2/2=17.42

17.42x4=69.68

69.68+27.04=96.76

Hope this helps <3 Comment if you want more thanks and be sure to give brainliest (4 left) <3

6 0
2 years ago
Ryan made 65 ounces of apple jelly. He put the same amount of jelly into 6 jars. About how much jelly is in each jar?
saul85 [17]
Between 10 and 11, all the others would be to much or to little
8 0
3 years ago
Read 2 more answers
On a Saturday, a library checked out 52 books. If 24 of the books were fiction , what is the ratio if non-fiction books to ficti
vekshin1
I would guess 28 to 24
4 0
3 years ago
Read 2 more answers
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