Answer:
X=14
Explanation:
The question tells us that the triangle is an equilateral triangle, meaning all of its side lengths are equal.
The perimeter of the triangle is all the lengths added together, so we can say this:
Perimeter=3(1.75x-2)
And since the question tells us the perimeter, we can input that into the equation as well.
67.5= 3(1.75x-2)
And now we solve:
67.5= 3(1.75x-2)
Distribute 3 into the parentheses
67.5=5.25x-6
Combine like terms (move -6 to the other side)
67.6+6=5.25x
73.6=5.25x
Divide both sides by 5.25
73.6/5.25=5.25x/5.25
14=x
I hope this helps! Please comment if you have any questions.
Answer:
10a + 4b + 17
Step-by-step explanation:
Combine like terms (terms with the same amount of variables & same variables). Reorder the terms:
17a - 7a + 1b + 3b + 17
(17a - 7a) + (b + 3b) + 17
10a + 4b + 17
10a + 4b + 17 is your answer.
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Answer:
Regular = $0.21 per ounce, Family = $0.19 per ounce
Step-by-step explanation:
Regular
16oz = $3.36
Divide by 16 on both sides
1oz = $0.21
Family
40oz = $7.20
divide by 40 both sides
1oz = $0.19
Answer:
Step-by-step explanation:
Start with our equation:
s=2(lw+wh+hl)
Plug in our values for l, w, and h:
s=2(12*9+9*2+2*12)
Simplify:
s=300
Answer:
214
Step-by-step explanation:
A box is a shape of a cuboid. Use formula 2lw+2lh+2wh
