3 years ago

Subtract. –21 – (–13) a. –34 b. –8 c. 8 d. 34

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

6 0

-21 - (-13)

-21 + 13

= -8

The answer B)

You might be interested in

Lin ran 4 laps around the track in 5 minutes, if lin ran 21 laps, how long does it take her

lyudmila [28]

Answer:

26.25 min

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Third grade 1 - 4/7 =?

Hitman42 [59]

Answer:

3/7

0.4285714286

4 0

3 years ago

Read 2 more answers

The area of Terry's room at the old house was 96 ft.2. The area of Terry's room at the new house is 108 ft.2

Finger [1]

Answer:

12.5%

Step-by-step explanation:

First we need to calculate the change in the area of Terry's room this is

108 ft2 - 96 ft2 = 12 ft2

Then we use a direct proportion in order to find the percentage

96 ft2 ----- 100%

12 ft2 ----- p?

Solvin for p we have that

$p=\frac{12\times 100}{96}$

p=12.5

3 0

3 years ago

Read 2 more answers

Is y=3x-5 and 6x=2y+10 a solution

iVinArrow [24]

Y=3x-5
y-3x=-5
Times 2 from both side
y(2)-3x(2)=-5(2)
2y-6x=-10
Times negative from both side
(-)2y-6x(-)=(-)-10
-2y+6x=10
or
6x-2y=10

6x=2y+10
6x-2y=10
Furthermore, we see that both equation have the same 6x-2y=10 which means that both of them have infinity solutions, not a solution. Hope it help!

5 0

3 years ago

Indicated operation of 2/3 + 3/8

stepladder [879]

Answer:

25/24

Step-by-step explanation:

Hope it Helps

8 0

2 years ago

Read 2 more answers