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Alina [70]
3 years ago
7

30-20 show your work using quick tens

Mathematics
2 answers:
Mashutka [201]3 years ago
8 0
30-20=10 10 is the answer
gavmur [86]3 years ago
6 0
30-10=20
20-10=10

or
10+20=30
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Can someone help me with this?​
Mariulka [41]

Answer:

1) 4+5=9.

2)  2+(-6)=-4

3)  -3+(-7)=-10

4)  (-7)+3=-4

5)  9+(-4)=5

6)  -1+4=3

7)  5+(-5)=0

8)  -3+(-6)=-9

Step-by-step explanation:

In the given number lines, rightarrows represent positive integers and leftarrows represent negative integers.

1)

In first number line we have two rightarrows.

Rightarrow from 0-4 = 4

Rightarrow from 4-9 = 5

So, required sum is 4+5=9.

Similarly,

2)

2+(-6)=-4

3)

-3+(-7)=-10

4)

(-7)+3=-4

5)

9+(-4)=5

6)

-1+4=3

7)

5+(-5)=0

8)

-3+(-6)=-9

8 0
3 years ago
The equation of a line is y-4=3(x+2) , which of the following is a point on the line?
kramer
Y-4=3(x+2)
y-4=3x+6

y = 3x +10

so in case of choise C. we get 

4 = 3*(-2) +10

4 = -6 +10

4 = 4 

hope this will help you 
8 0
3 years ago
Whats the answer to number 9?
agasfer [191]

Answer:

B and D

Step-by-step explanation:

Because only those two equations on the graphs are straight. and are increasing or decreasing in a constant pace.

4 0
3 years ago
Please help me with this question please!!!
lozanna [386]

A = x * x = x^2

B = 6 * x = 6x

C = 8 * x = 8x

D = 6 * 8 = 48

So the area of the whole shape is each side added up then multiplied to give (x+6)(x+8) =

x^2 + 14x + 48

7 0
3 years ago
Read 2 more answers
A cell phone company charges a flat fee of 20 dollars plus 3 cents a call. What is the total bill if there was a total of 200 ca
34kurt

Answer:

Total Bill = 4006 dollars

Step-by-step explanation:

A cell phone company charges a flat fee of 20 dollars plus 3 cents a call.

If there was a total of 200 calls for the month, the total charge by the cell phone company will be.

Let me convert all to cent first

100 cent = 1 dollar

20 dollar =20 *100

29 dollar = 2000 cent

Charge by the company for a call is 2003 cent

Let me put down the equation.

1 call = 2003 cent

200 calls =( 200 calls* 2003cent)/1 call

200 calls = 200 * 2003cent

200 calls = 400600 cent

Let's convert back to dollar

100 cent = 1 dollar

400600 cent = 400600/100

400600 cent = 4006 dollars

8 0
3 years ago
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