Answer: 80 miles
Work: I just did 40 times 2 because they completed half their trip, and they need to complete 40 more miles.
<em>Happy Holidays! :)</em>
Answer:
Let B = the weight of box B
Let 2B = the weight of box A
Let 2B + 30 = the weight of box C
B + 2B + 2B + 30 = 640
5B = 610
B = 122 pounds, weight of box B
2B = 2(122) = 244 pounds, weight of box A
2B + 30 = 2(122) + 30 = 274 pounds, weight of box C
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Answer:
Step-by-step explanation:
<u>Surface area comprises of:</u>
- A = Area of square base + 4(area of triangle faces)
- A = 2.5² + 4*1/2*2.5*5= 31.25 cm²
Correct option is C
Answer:
-5x^2 + 8 - 4x
Step-by-step explanation:
emove parentheses.
-2{x}^{2}+3-3{x}^{2}-4x+5
−2x
2
+3−3x
2
−4x+5
2 Collect like terms.
(-2{x}^{2}-3{x}^{2})+(3+5)-4x
(−2x
2
−3x
2
)+(3+5)−4x
3 Simplify.
-5{x}^{2}+8-4x
−5x
2
+8−4x
