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kakasveta [241]
3 years ago
11

A. 20 b. 5 c. 40 d. 45

Mathematics
2 answers:
AysviL [449]3 years ago
8 0
I think it could be B

By divide but iam not sure sorry if it wronge
Rina8888 [55]3 years ago
6 0

Answer:

C, 40

Step-by-step explanation:

You can set up the equation as 20+4x=180

180 is the total angle of the line

4x=160 and divide each side by 4

x=40

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Blakes goes from averaging 8 hours of sleep for a school night to averaging 6.5 hours of sleep on the weekend. What is the perce
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Answer:

Step-by-step explanation:

So Blakes sleep 8 hours per night during the school day

8 hours/night...................................100%

6.5 hours/night...................................?

6.5*100/8=81.25

the change in percentage is 100-81.25=18.75%

the percentage change is 18.75

if it is easier for you, another method is:

8-6.5=1.5 subtract the original amount to the new amount

1.5/8=0.1875 divide by the original amount

0.1875*100=18.75 find the percentage

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3 years ago
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mario62 [17]
Umm, what grade are you in . i’ll see if i can help
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3 years ago
Need help with this question!
Katyanochek1 [597]

Answer:

  • A = 0.85(b +47)
  • $143.65

Step-by-step explanation:

Since the number of bagels sold already is 47, the total number of bagels sold will be b+47. The revenue from each sale is $0.85, so the total revenue will be ...

  A = 0.85·(b +47)

This equation can be written in different forms, but this satisfies the requirement for "an equation."

__

Since b is the number of addition bagels, when 122 additional bagels are sold, the value of b is 122. Then the equation becomes ...

  A = 0.85·(122 +47)

  A = 0.85·169 = 143.65

Revenue will be $143.65 when 122 additional bagels are sold.

4 0
3 years ago
There are 20 sixth graders and 25 seventh graders. If each group has the greatest possible number of club members, how many grou
seraphim [82]
4(5)=20
5(5)=25
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The town librarian bought a combination of new-release movies on DVD for $20 and classic movies on DVD for $8. Let x represent t
IRISSAK [1]

answer: could be both (B)and(C)

Step-by-step explanation:

4 0
3 years ago
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