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aivan3 [116]
2 years ago
11

Solve the system of equations 4x equations. 8y = -8 and 5x-9y = -7 by combining the

Mathematics
1 answer:
statuscvo [17]2 years ago
4 0

Answer:

x=−16/5

and y=−1

Step-by-step explanation:

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The formula p=f/a can be used to relate pressure, force and area. solve the formula for a
Gemiola [76]
<h3>Answer:   a = f/p</h3>

===============================================

Explanation:

We'll solve for 'a' doing these two steps in this exact order

  1. Multiply both sides by 'a'
  2. Divide both sides by p

We do this because we're following PEMDAS in reverse to isolate the variable we want.

The steps look like this

p = f/a

pa = f

a = f/p

Note how ultimately the 'a' and p variables swap places when going from p = f/a to a = f/p

3 0
3 years ago
A cylinder has a radius of 12m and a height of 30m. Find the surface area and volume
Anastasy [175]

Answer:

Surface Area: 1008π OR 3166.73

Volume: 4320π OR 13,571.68

Step-by-step explanation:

Surface Area Equation:

2πrh+2πr^2

Work:

2π (12) (30) + 2π12^2

2π(360) + 2π(144)

720π + 288π

1008π OR 3166.73

Volume Equation:

πr^2h

Work:

π12^2 (30)

π144 (30)

4320π OR 13,571.68

4 0
3 years ago
14% of the towns population is over the age 65. If there are 320 residents over the age of 65, approximately what is the towns p
Anestetic [448]

Answer:

about 315

Step-by-step explanation:

2,250×0.14

hope this helps!

5 0
2 years ago
The quotient of -15x^8/5x^2, x≠0,is
FinnZ [79.3K]
The answer to the question before the comma is -24
5 0
2 years ago
Six of 16 students in Mr. McConney's class are serving detentions, the rest are here for tutoring. What percent of students are
Ivan

Answer:

62.5%

Step-by-step explanation:

plz mark the brainliest

3 0
2 years ago
Read 2 more answers
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