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madam [21]
3 years ago
15

Select three ratios that are equivalent to 11:1

Mathematics
1 answer:
marin [14]3 years ago
6 0

Answer:

what are the answer choices?

Step-by-step explanation:

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Tim bought some 25 cent and some 29 cent stamps. He paid 7.60 dollars for 28 stamps. How many of each type of stamp did he buy?
Citrus2011 [14]

Answer:

25 cent stamps = 13 and 29 cent stamps = 15

Step-by-step explanation:

x = 25 cent stamps and y = 29 cent stamps

x + y = 28......x = 28 - y

0.25x + 0.29y = 7.60

0.25(28 - y) + 0.29y = 7.60

7 - 0.25y + 0.29y = 7.60

-0.25y + 0.29y = 7.60 - 7

0.04y = 0.60

y = 0.60 / 0.04

y = 15 <===== 29 cent stamps

x + y = 28

x + 15 = 28

x = 28 - 15

x = 13 <===== 25 cent stamps

lets check it...

0.25x + 0.29y = 7.60

0.25(13) + 0.29(15) = 7.60

3.25 + 4.35 = 7.60

7.60 = 7.60 (correct..it checks out)

8 0
3 years ago
A social scientist wishes to conduct a survey. She plans to ask a yes/no question to a random sample from the U.S. adult populat
agasfer [191]

Answer:

The sample proportion from the sample of 900 is more likely to be close to the true population proportion, p.

Step-by-step explanation:

for the first one

6 0
3 years ago
Read 2 more answers
Who want s to talk?<br> what is 2x2+6+9+3-1x2<br> i will give brainly to the right answer
Ivenika [448]

Answer:

20

Step-by-step explanation:

youre welcome

6 0
3 years ago
Read 2 more answers
Write an inequality for the given statement: The sum of x and 25 is less than 75.
Kaylis [27]
That statement would be best express by " x + 25 < 75 ". Since the statement says the sum of x and 25, thus, it will be x + 25. Then it also states that the sum is less than 75, so the best expression would be " < 75".
4 0
3 years ago
PLSS HELPP
frez [133]
Solution is in the picture

3 0
3 years ago
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