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Gnoma [55]
3 years ago
11

2x+y=70 2y+z=110 x+y+z=?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0
No solution
Because 3 unknown needs 3 equation at least
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|y+4|&lt;1 (1 point) <br><br> A.-5 B.-3 C.-4 D.1
BARSIC [14]
It will be b because as u see one point I b
8 0
3 years ago
What is the equation of a line that is perpendicular to y=0.25x-7 and passes through the point -6,8
Olenka [21]

Answer:

The equation ls: y = -4x - 16

Step-by-step explanation:

Given the point (-6, 8)

Given the line y = .25x - 7

Use a fraction:

y = 1/4x - 7

The slope is 1/4 (or .25)

The slope of a perpendicular line is the negative inverse or -4.

Use the point slope form and substitute:

y - y1 = m(x - x1)

y - 8 = -4(x - (-6))

y - 8 = -4x - 24

y = -4x - 16

Proof:

f(-6) = -4(-6) - 16

= 24 - 16

= 8, giving (-6, 8)

7 0
3 years ago
One Step Equations <br> -104=8x<br><br> Please show your work, thank you.
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Answer:

= − 1 3

Step-by-step explanation:

8x/8 = -104/8

Brainliest?

4 0
3 years ago
When 1.5 and a number, "n", are multiplied together, the result is 13.65. a.) Translate this into an equation. b.) Find the valu
alexandr402 [8]
The answer is 2. a)1.5n = 13.65 b) n = 9.1
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Find the Total Surface Area and the Volume of these shapes:
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