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aksik [14]
3 years ago
14

Sam got a new job with a seven dollar per hour raise. He worked for five hours and got paid $85. How much did he make before the

raise?
A: 10 per hour
B: 11 per hour
C:12
Or
D:13
Mathematics
2 answers:
Olegator [25]3 years ago
8 0
I believe the answer would be C, 12.
Levart [38]3 years ago
5 0
17 per hour?... all of these are incorrect
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Ludmilka [50]
64,513; 10; 2,402. The 4 in 64,513 is essentially 4,000 whereas the 4 in 2,402 is only 400. 400(10)=4000.
7 0
4 years ago
Write as an equation: If a number is decreased by five, and then the result is multiplied by two, the result is 26.
kvasek [131]

Answer:

18

Step-by-step explanation:

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2 years ago
In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. The treatment group consis
BARSIC [14]

Answer:

The requirements for the hypothesis test does satisfied the method for testing the claim that from two population proportions the rate of polio is less for children given the salk vaccine.

Step-by-step explanation:

The percentage of children in the treatment group was:

(201229/401974)*100 = 49.9%

The percentage of children given placebo was:

(200745/401974)*100 = 50.1%

The percentage of children that developed polio in the treatment group:

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The percentage difference between the two group:

((0.0571-0.0164)/0.0571) = 61.62%

Therefore:

The amount of children used for each group was almost divided into half of the total amount of children. The test revealed although very small percentages of the both group developed polio, 68.62% more children given placebo than the children that was given the salk vaccine. Therefore, the study shows that the rate of polio is less for children given the salk vaccine and the the hypthesis test is satisfied.

6 0
3 years ago
Ann is using a recipe that serves 20 people. The recipe requires 1/2 of a cup of sugar. How many cups of sugar does Ann need to
nikitadnepr [17]

Answer:

Step-by-step explanation:

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x=35/20

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Ann will need 1.75 cups of sugar.

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3 years ago
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Step-by-step explanation:

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