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annamerryberry1016
13.10.2019 •
Mathematics
15. edgar anderson earns $200 a week plus a 15% commission on all sales over $1,000. if mr. anderson's sales for one week are $2,500, what is his gross pay for that week?
a. $350
b. $525
c. $575
d. $425
16. which one of the following statements expresses a true proportion?
a. 14 : 6 = 28 : 18
b. 42 : 7 = 6 : 2
c. 2 : 3 = 3 : 2
d. 3 : 5 = 12 : 20
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Ответ:
2500 X 15 = 37500
37500 ÷ 100 = 375
375 + 200 = 575
The answer is C.
16.
The easiest way to answer this question is by going through each answer one by one:
14:6 = 28:18
28 ÷ 14 = 2
18 ÷ 6 = 3
Since both numbers were multiplied by different numbers, we can establish that this is not a true proportion.
42:7 = 6:2
42 ÷ 7 = 6
7 ÷ 7 = 1
42:7 = 6:1
By dividing both numbers by the same number, we can establish that the answer is wrong.
2:3 = 3:2
This is obviously wrong. That is because, in ratios, the order counts. So the first 3 is more than the first 2, therefore the second number on the other side of the ratio should be more than the first.
3:5 = 12:20
12 ÷ 3 = 4
20 ÷ 5 = 4
Since both numbers were multiplied by the same number, this is a true proportion.
The answer is D.
Ответ:
Step-by-step explanation: