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FromTheMoon [43]
4 years ago
10

PLEASE HELP ME WITH NUMBER 12!!!!!!

Mathematics
1 answer:
never [62]4 years ago
5 0
8-15 is -7 and 8+(-15) is also -7 because this equation can also be written as 8-15 but I'm not really sure how to explain how they are different. Sorry
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Sarah received 55 for her birthday. She used some of that money to buy 333 shirts priced at m dollars each.
Fudgin [204]

Answer:

You need to tell me (everyone) what M is or we can't figure out what the answer is.

Step-by-step explanation:

5 0
3 years ago
Write the ratio as a fraction in simplest form 35 girls: 15 boys
nika2105 [10]

Answer:

7:3

Step-by-step explanation:

think of it as a fraction

6 0
3 years ago
The high school graduating class of 2010 was 260 people. Five years later the high school graduating class was 320 people. By ap
jeka94

Answer:

The high school graduating class changed by approximately 23%

Step-by-step explanation:

we have

The high school graduating class of 2010 was 260 people

Five years later the high school graduating class was 320 people.

we know that

260 people represent the 100%

so

The difference is (320-260)=60 people

using proportion

Find out what percentage represent 60 people

Let

x ----> the percentage that represent 60 people

\frac{260}{100\%}=\frac{60}{x}\\\\x= 100\%(60)/260\\\\x=23.1\%

therefore

The high school graduating class changed by approximately 23%

3 0
3 years ago
The numbers below follow a pattern.
borishaifa [10]

Answer:

0.03, 0.003

Step-by-step explanation:

The decimal moves over one place each time

4 0
3 years ago
Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9)
konstantin123 [22]

Answer:

C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

m =  \frac{y_2-y_1}{x_2-x_1}

The slope of the line that passes through (−12, 15) and (4, −5) is

m_{1} =  \frac{ - 5 - 15}{4 -  - 12}

m_{1} =  \frac{ - 20}{16}  =  -  \frac{5}{4}

The slope of the line going through (−8, −9) and (16, 21) is

m_{2} =  \frac{21 -  - 9}{16 -  - 8}

m_{2} =  \frac{21  + 9}{16  + 8}

m_{2} =  \frac{30}{24}  =  \frac{5}{4}

The product of the two slopes is

m_{1} \times m_{2} =  -  \frac{4}{5}  \times  \frac{5}{4}  =  - 1

Since

m_{1} \times m_{2} =  - 1

the two lines are perpendicular.

4 0
4 years ago
Read 2 more answers
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