Answer:
8 × 7
Step-by-step explanation:
(4 × 2) × 7
We can multiply what is inside the parentheses
(8) × 7
Answer:
-1311
Step-by-step explanation:
1316 + x = 5
Subtract 1316 from both sides:
1316 - 1316 + x = 5 - 1316
On the left side they cancel out and we are left with:
x = 5 - 1316
Which simplifies to:
x = -1311
Answer:
They would by able to go 4 miles.
Step-by-step explanation:
Answer: A = X + Y
B = X or Y. A = 12, B = 8, X = 2, Y = 10, A = 12, B = 9.
Step-by-step explanation:
Answer:
4 Hours
Step-by-step explanation:
Let's say that the rate of the machines 1/x, because every time they complete an order, it takes them x hours. To find x, we have to add the the rates of the individual machines, which would equal the rate of the machines working together. We know that there are four machines working together at the same rate, and it took them 32 hours.
So:
1/x + 1/x + 1/x + 1/x = 1/32
1/4x = 1/32
4x = 32
x = 8
Thus, the rate of the machines is 1/8.
Now we have to find the time of the order with only half of the machines working together. This time, we don't know the combined rate, so I'll substitute it for y.
1/8 + 1/8 = 1/y
1/4 = 1/y
y = 4
The time taken to complete it is 4 hours.
