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RUDIKE [14]
3 years ago
11

Adam tried to compute the average of his 7 test scores. He mistakenly divided the correct sum of all of his test scores by 6, wh

ich yielded 84. What is Adam’s correct average test score?
Mathematics
1 answer:
Harman [31]3 years ago
3 0
Adam got the sum of his grades right, but he divided that correct figure by 6, getting 84 Before that division, the sum of his grades must have been 84 * 6, or 504. He should have divided 504 by 7, getting 72. Answer: His correct average test score is 72.

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Mrs smith bought a.box of 10 cupcake she ate 30% of the cupcake how many did she eat
iogann1982 [59]

Answer:

3 Cupcakes

Step-by-step explanation:

First, multiply the percentage, 30, times the number of cupcakes, 10, ad you get 300. Then, divide that by 100, and oyu get your answer, 3 cupcakes.

*Or since this form of equation is in a simpler form of 10 cupcakes, just get rid of the percentage sign and the 0 in 30%. I hope this helps :)

4 0
2 years ago
You have 6 green marbles, 23 blue marbles, and 18 red marbles. what is the probability of choosing a red marble. express your an
AysviL [449]
The probability of choosing a red marble is 18/47.
7 0
3 years ago
. In the 107th Congress, the Senate consists of 13 women and 87 men. If a lobbyist for the tobacco industry randomly selects thr
brilliants [131]

Answer:

0.18% probability that they are all women

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the senators are chosen is not important, so the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes:

3 women, from a set of 13. So

D = C_{13,3} = \frac{13!}{3!(13 - 3)!} = 286

Total outcomes:

3 senators, from a set of 100. So

T = C_{100,3} = \frac{100!}{3!(100 - 3)!} = 161700

Probability;

p = \frac{D}{T} = \frac{286}{161700} = 0.0018

0.18% probability that they are all women

5 0
3 years ago
Suppose M is the midpoint of FG. Find each missing measure. #39-47 odd​
Eva8 [605]

Answer:

is this geometry?

Step-by-step explanation:

just wondering.

5 0
3 years ago
19. Which one of the following statements expresses a true proportion?
choli [55]
That would be : 3:5 = 12:20....because 3/5 = 12/20
7 0
3 years ago
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