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slega [8]
3 years ago
6

How can you subtract two integers without number lines or counters

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
8 0
For example:


12 - 10 = ?

Start with the numbers to the far right; take your 2 from the 12 draw a curving line from that 2 to the 0 in 10; ask what is 2 minus zero? 2!

Draw a curving arrow from the 1 in 12 to the 1 in 10. And ask, what is one minus one ?
Zero.

Try that with other numbers

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Barbra can walk 3,200 meters in 24 minutes. How far can she walk in three minutes.
lisabon 2012 [21]

Answer:

Step-by-step explanation:

To find how far she can walk in 3 minutes, we need to find how fast she can walk in 1 minutes. We do this by dividing the distance she walked by the time she walked. Lets do so.

3200/24=133.33

She walks 133.33 meters per minute. Now to find her distance in 3 minutes w multiply this number by 3.

133.33*3=400

Barbra walks 400 meters every 3 minutes.

3 0
3 years ago
A toll-free sales line sold 85 products for every 125 calls in one day. What is the daily success rate of the sales line? A. 0.1
IgorLugansk [536]

Answer:

C. 0.68

Step-by-step explanation:

Given;

number of products sold in a day by toll-free sales line = 85 products

number of calls in a day = 125

The daily success rate of the sales line is given by the ratio of the total products in a day to total number of calls in a day.

The daily success rate of the sales line = total products sold / number of calls

The daily success rate of the sales line = 85 / 125

The daily success rate of the sales line = 0.68

Therefore, the daily success rate of the sales line is 0.68

7 0
3 years ago
A baby weighed 7.25 lb at birth. At the end of 8 months, the baby weighed 2.5 times its birth weight. How many pounds did the ba
Vesnalui [34]

Answer: 18.125 lbs

Explanation: The baby weighed 18.125 pounds at the end of eight months.

The baby weighed 7.25 lbs at birth. Eight months later, he weighed 2.5 or 2½ times its birth weight. Multiply 7.25 by 2.5  (which equals 18.125).

So now eight months later, he's 18.125 pounds.

4 0
3 years ago
Read 2 more answers
Graphing Linear Equations
ArbitrLikvidat [17]

Answer:

Kyra=15 points

Liam=20 points

30 points=y=4/3x+5

Step-by-step explanation:

I graphed each equation and point on the graph given

HOPE THIS HELPS!!! :)

PLEASE CORRECT ME IF IM WRONG

8 0
3 years ago
Define the domain:  {(2,3),(0,3),(4,2),(5,6)}
Y_Kistochka [10]
For the following relation the domain would be all of the x coordinates.
D=A. 2,0,4,5
5 0
2 years ago
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