2 years ago

Evalute m-2n if m= -3 and n= -8

1 answer:

8 0

M = -3
n = 8
plug in your variables.
-3 - (2 x -8)
two negatives make a positive, so it would be positive 16
-3 + 16
= 13

You might be interested in

Look at the photo pick A B C D either one explanation not needed thank you! <3

elena55 [62]

Answer:

Step-by-step explanation:

8 0

3 years ago

Find the value of x for which ABCD must be a parallelogram.

Tems11 [23]

D. X = 8 , Y = 6
3x - 14 = x + 23x - x = 2 + 142x = 162x / 2 = 16/2x = 8
To check: 3x - 14 = x + 2 ; 3(8) - 14 = 8 + 2 ; 24 - 14 = 10 ; 10 = 10
4y - 7 = y + 114y - y = 11 + 73y = 183y / 3 = 18 / 3y = 6
To check: 4y - 7 = y + 11 ; 4(6) - 7 = 6 + 11 ; 24 - 7 = 17 ; 17 = 17
hopes it helps:)

8 0

3 years ago

Read 2 more answers

Calvin's plane is flying at a speed of 600 miles per hour. If y represents the distance the plane has traveled and z represents

Ksenya-84 [330]

Answer:

Step-by-step explanation:

the answer is d because the amount of speed changes the total amount of distance that he travels in time

7 0

2 years ago

What is the perimeter of a square with s = 8 centimeters?

andrew11 [14]

Answer:

32centimeters

Step-by-step explanation:

4 sides are in a sqaure and all of them are equal so

8 times 4 is 32

3 0

3 years ago

Currently you have $80 and your sister has $145. You decide to save $6 of you allowance each week, while your sister decides to

Bas_tet [7]

You can solve the problem this way:

Your money is increading $6 a week while sister's is decreasing $7 a week (because she isn't saving any and is spending $7 of what she has weekly)

Your money each additional week vs sister''s:

80/145 (Week 0)

86/138 (Week 1)

92/131 (Week 2)

98/124 (Week 3)

104/117 (Week 4)

110/110 (Week 5) The amounts are the same in 5 weeks.

7 0

3 years ago