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Shalnov [3]
3 years ago
14

Ebony earned scores of 72 70, 81, 99, and 88 on five math tests. Determine her

Mathematics
1 answer:
Minchanka [31]3 years ago
6 0

Let it be x

\boxed{\sf Average=\dfrac{Sum\:of\:terms}{No\:of\:terms}}

\\ \sf\longmapsto \dfrac{72+70+81+99+88+x}{6}=83

\\ \sf\longmapsto \dfrac{410+x}{6}=83

\\ \sf\longmapsto 410+x=498

\\ \sf\longmapsto x=498-410

\\ \sf\longmapsto x=88

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Is finding the mean weight of heart-disease patients in a study an example of data gathering?
Leviafan [203]

I would think so since you have to weigh each person and then add all the weights together and then divide this number by the total number of people weighed.

Would probably mostly hinge on the actual weighing part I think for the data gathering.

5 0
3 years ago
Please help me it's urgent
Stels [109]

Step-by-step explanation:

p

2

−2p−100=(−10)

2

−2(−10)−100 [Putting p=−10]

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lozanna [386]
This basically means that you have to multiply the x and y values by 3. So 2 time 3 is 6. And -7 times 3 is -21. So the new coordinations are (6, -21)

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3 0
4 years ago
Can someone help me. I’ve tried doing this on paper. I don’t know what I’m doing wrong
IrinaK [193]
ANSWER: x=12
EXPLANATION:
9+x/6=11
(54+x)/6=11 (finding common denominator)
x/6=11-54/6 (rearranging terms)
x/6=(66-54)/6 (finding common denominator so 6 gets cancelled from both the sides)
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6 0
3 years ago
Read 2 more answers
2( 10 - a^2 ) + 7a If ( a = 4 )Evaluate each expression
Lostsunrise [7]

Solution:

Given:

2(10-a^2)+7a

when a = 4, substitute for a in the expression;

\begin{gathered} 2(10-a^2)+7a=2(10-4^2)+7(4) \\ =2(10-16)+28 \\ =2(-6)+28 \\ =-12+28 \\ =16 \end{gathered}

Therefore, if (a = 4), then

2(10-a^2)+7a=16

Hence, the answer is 16.

6 0
1 year ago
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