2 years ago

3x - y = 7

1 answer:

nataly862011 [7]2 years ago

6 0

3x - y = 7
6x - y = 10

if you subtract the second equation from the first to eliminate y you get:
3x-y-(6x-y)=7-10
3x-y-6x+y=-3
-3x=-3

so option C) -3x=-3 is the solution

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a construction worker needs to pour a rectangular slab 23 ft long, 24 ft wide, and 8 in thick. how many cubic yards does the con

den301095 [7]

Step-by-step explanation:

Volume = lwh

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3 years ago

Resssspooond quickkk

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The slope of the given line is -1/3. The perpendicular line's slope is the opposite reciprocal of the given line's slope. So, the perpendicular line's slope is 3. Then we have slope intercept form y=mx+b

y=3x+b
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3 years ago

Read 2 more answers

WILL AWARD BRAILEST!!!!!! A triangular prism has a triangular face with a base of 16.8 centimeters and a height of 10.2 centimet

VARVARA [1.3K]

Answer:

14 cm

Step-by-step explanation:

The first step is to find the area of the triangular base. The formula for the area of a triangle is $\frac{bh}{2}=\frac{10.2\cdot16.8}{2}=85.68$ . Now, you can divide the total volume by this to find the length. 1199.52/85.68=14. Hope this helps!