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r-ruslan [8.4K]
3 years ago
8

Subtract using a number line.

Mathematics
2 answers:
Maurinko [17]3 years ago
7 0

Answer:

The answer is 7

Step-by-step explanation:

2 negative numbers would equal a positive number.

so,Bascially it's like your just taking 8 away from 1.

Agata [3.3K]3 years ago
7 0

Answer:

7

Step-by-step explanation:

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Simplify each expression<br><br> 1. 5 + 3 (x - 5) + 7 <br><br> 2. 1/2+2/3(y- 6)
exis [7]

Answer:

3(x-1)

Step-by-step explanation:

12+3x-15

-3+3x

3(x-1)

8 0
3 years ago
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Patty wants to run 5/6 of a mile every day for 5 days. Keisha wants to run 3/4 of a mile every day for 6 days. Who will run the
Ugo [173]
Patty wants to run 5/6 of a mile.

5/6 = 0.8333...

Keisha wants to run 3/4 of a mile.

3/4 = 0.75

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3 years ago
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Sam, Tim, and Heidi each bought an item at the store. Sam bought a magazine for $2.47, Tim bought a race car for $8.99 and Heidi
Viktor [21]
Well just add them up

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3 0
3 years ago
1.) (7.RP.3) Tracy started a savings account that is set up so that the simple interest earned on the investment is moved into a
LenaWriter [7]

Answer:

1. c. $450.

2.  22%

Step-by-step explanation:  

1. We will use simple interest formula to find the amount of interest after 2 years on $5,000. As interest is not compounded, so it will not matter if she moves the simple interest earned in separate account or not.

I=P*r*t, where,  

I= Amount of interest.

P= Principal amount.

r= Interest rate in decimal form.  

t= Time in years.

4.5\text{ percent}=\frac{4.5}{100}=0.045

Upon substituting our given values in above formula we will get,

I=5000*0.045*2

I=5000*0.09

I=450

Therefore, Tracy will get an amount of $450 as simple interest after 2 years and option c is the correct choice.

2. Sylvia bought a 6-month $1900 certificate of deposit. At the end of 6 months, she received a $209 simple interest.

6 months is same as 1/2 year.

I=P*r*t

Upon substituting our given values in above formula we will get,

209=1900*r*\frac{1}{2}

209=950*r

r=\frac{209}{950}

r=0.22

Since interest rate is in decimal form, let us convert it in percent.

\text{Interest rate}=0.22\times 100=22\text{ percent}

Therefore, interest rate of certificate of deposit was 22%.

8 0
3 years ago
The diameter of your bicycle wheel is 20 inches. How far will you move in two turns of your wheel? A) 56.3 inches B) 62.8 inches
stepladder [879]

The answer is B. 62.8

20 multiplied by π is 62.8

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