Step-by-step explanation:
No. Jack's solution doesn't make sense.
It is given that, 8.5 - a = 5
Jack is saying that addition and subtraction are reverse operations. Yes, it's true, but here,
8.5 - a = 5
If we move 5 to the opposite side, it becomes -5, and -a to the other side, it becomes a.
So, 8.5 - 5 = 3.5 and not 13.5.
Overall, Jack's solution doesn't make sense.
Answer:
We need to sell the nuts at 35 dollars to make $20 profit
Step-by-step explanation:
Profit = Selling price - cost
We know we want a 20 dollar profit
The cost of the nuts is 15 dollar
Substitute this in
20 = Selling price -15
Add 15 to each side
20+15 = Selling price -15+15
35 = Selling price
We need to sell the nuts at 35 dollars to make $20 profit
Answer:
The first one is 2, the second one is 7/8.
Step-by-step explanation:
You can do self-checking.
Answer:
42
Step-by-step explanation:
Please mark me BRAINLIEST
9514 1404 393
Answer:
- 35°
- 145°
- 55°
- 125°
- 55°
Step-by-step explanation:
The right triangles are similar, so angle 1 is congruent to the given angle, and angles 3 and 5 are complements of that.
Angles 2 and 4 are the supplements of angles 1 and 5, respectively.
∠1 = 35°
∠2 = 180° -35° = 145°
∠3 = ∠5 = 90° -35° = 55°
∠4 = 180° -55° = 125°