Answer:
Step-by-step explanation:
let the speed of one plane=x mph
speed of other plane=x+120 mph
x×1.5+(x+120)×1.5=1620
(x+x+120)×1.5=1620
(2x+120)×1.5=1620
3x+180=1620
3x=1620-180
3x=1440
x=480
speed of one plane=480 mph
speed of second plane=480+120=600 mph
Answer:the answer is D.
Step-by-step explanation:
5(x)- -3(y) is 8. Make the negative into a positive if the equation looks like that. 4x5=20 + 3x-3=-9 so 20+-9= 11
Answer:
OPTION B - 25
Step-by-step explanation:
We know that:
The given problem uses these results to arrive at the answer.
Now, 
Now, 
⇒ 5² = 25.
∴ The answer is 25. (Option B)
He will earn 5.10 from large necklaces and 18.80 for small necklaces meaning in total he will earn 23.90.
