Answer:
PQ = 37 Km
Step-by-step explanation:
let PQ = x , then
PR = x + 15 and QR = 3(x + 15) = 3x + 45
sum the parts and equate to 245
x + x + 15 + 3x + 45 = 245 , that is
5x + 60 = 245 ( subtract 60 from both sides )
5x = 185 ( divide both sides by 5 )
x = 37
then
PQ = x = 37 Km
Slope formula is m= (y2-y1)/(x2-x1)
We know that slope is 1. So,
(-6-1)/(x-4) = 1
Then solve for x
-6-1 = x-4
x-4 = -7
x= -7+4
x= -3
32/36 can be simplified twice into 16/18, and then into 8/9.
Answer:
1°F to 7°F is the best range to store ice cream.
Step-by-step explanation:
The ideal storage temperature of ice cream = 4°F
The allowance in the temperature is 3°F
So, the range of the store = 4°F ± 3°F
Now, 4°F + 3°F = 7°F
and 4°F - 3°F = 1°F
Hence, 1°F to 7°F is the best range to store ice cream.
It takes Andre 1.25 minutes to swim a lap.
Step-by-step explanation: