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V125BC [204]
2 years ago
15

5st + 8s +9t -2st + 7t

Mathematics
2 answers:
Marina CMI [18]2 years ago
3 0

what is this ..........

:-/

Sindrei [870]2 years ago
3 0

Answer:

3st + 8s + 16t

Step-by-step explanation:

Let's simplify step-by-step.

5st+8s+9t−2st+7t

=5st+8s+9t+−2st+7t

Combine Like Terms:

=5st+8s+9t+−2st+7t

=(5st+−2st)+(8s)+(9t+7t)

=3st+8s+16t

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Johnny has graded 20% of his 150 students papers how many papers does he still need to finish grading ?
LiRa [457]
The correct answer is 120 papers.
4 0
3 years ago
Read 2 more answers
8p + 2q = -16<br> 2p - q=2
yKpoI14uk [10]

Answer:

p = -1  q = -4

Step-by-step explanation:

a system of eq and solve for p and q ???  can do  :)

Eq. 1)  8p + 2q = - 16

Eq. 2)  2p - q = 2

use Eq .2 and solve for q

2p - 2 = q

plug into Eq.1 with q

8p +2(2p - 2) = - 16

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12p = - 12

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plug -1 into Eq. 1 for p and solve for q

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8 0
3 years ago
A freight train departs from one train station to its destination at a constant speed. Suppose the distance the train is from th
barxatty [35]

Answer:

108 miles

Step-by-step explanation:

Given the points (0.5, 135) and (2,81)

Diatnce between two points :

D = √(x2 - x1)² + (y2 - y1)²

X1 = 0.5 ; y1 = 135 ; x2 = 2 ; y2 = 81

D = √(2^2 - 0.5^2) + (81^2 - 135^2)

D = √(4 - 0.25) + (6561 - 18225)

D = √3.75 −11664

D = 107.98263

D = 108 miles

6 0
3 years ago
Can you help me please?
noname [10]

Answer:

the answer is 2.620

Step-by-step explanation:

the way u will get this is at the top there pattern is adding the bottom they are subtracting 2

8 0
3 years ago
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