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Nataly [62]
3 years ago
13

HELPPPPPPPPPPPPPPPPPPPPP

Mathematics
2 answers:
Vika [28.1K]3 years ago
5 0

Answer:

-1.9b + 7.8

Step-by-step explanation:

inn [45]3 years ago
4 0

Answer:

-1.9b + 7.8

Step-by-step explanation:

1.3b - 3.2b = -1.9b

Add that with 7.8 and you get -1.9b + 7.8

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Anyone know this question?<br><br>Just B please
Gre4nikov [31]

Answer:

52% and 7

Step-by-step explanation:

There are 25 squares of which 13 are shaded , then

\frac{13}{25} × 100% = 13 × 4% = 52°

(b)

1 square represents \frac{1}{25} × 100% = 1 × 4% = 4%

Then 80% = 80% ÷ 4% = 20

That is for 80% , 20 squares require to be shaded

That is 7 more than the 13 already shaded

4 0
3 years ago
You attend a karaoke night and hope to hear your favorite song. The karaoke song book has 900 different songs (your favorite son
Afina-wow [57]
20/900
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How many $0.21 pencils can be purchased for $7.00? Show your work.
IgorLugansk [536]
N*(21/100)=(700/100)

n=(700/100)/(21/100)

n=(700/100)*(100/21)

n=700/21

n=33+1/3

So <em><u>thirty three</u></em> $0.21 pencils can be purchased for $7.00.
8 0
3 years ago
Read 2 more answers
What is this Find the value of |-6| - 3(42 - 1).
Artist 52 [7]

Answer:

-117

Step-by-step explanation:

So, basically all you have to do is use the absolute values in order to use order of operations and simplify it along with the multiplied grouping.

Hope this helps :)

5 0
3 years ago
If an image of a triangle is congruent to the pre image then the scale factor of the dilation must be n=
Kazeer [188]
1. the image is multiplied by the scale factor. if the scale factor is 2, the image is twice the size of the preimage. if the scale factor is ⅓, the image is one third the size. only a scale factor of 1 preserves congruency
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3 years ago
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