28 + 8*10.5 = 28 + 84 = 112
The weekly cost is $112
ANSWER: Multiply and Divide from left to right
To do this question we must follow the rules of PEMDAS. The first step would be to evaluate the equation given to us in the parentheses. To solve that we would have to use PEMDAS once again which tells us to multiply 2 x 2 before we add 3, so we get 7. Now that there is no more Parentheses, our second step is to evaluate each Multiplication and Division expression from left to right. This would start by dividing 63 by 7 to get 9.
Numerator of the equation is 3*nDenominator is 4*p - 5*n The equation is m = 3n/(4p-5n)
Numerator = 3*n
Denominator = 4*p - 5*n
Equation = [m = 3n/(4p-5n)]
The last time David filled up his truck with gas, he paid $27.44 for 7 gallons. This time, he needs 15 gallons. If the price is the same, how much will he pay?
Answer:
First pilot will gain altitude faster by 7.16 mph than second pilot.
Step-by-step explanation:
In this question we will calculate the y component of the velocity by which the pilots are gaining height. Means we will analyze which pilot will gain the altitude early.
For the first pilot vertical component of the velocity will be
v = 400 × sin30° = 400 × (1/2) = 200 mph
For second pilot vertical component of the speed is
v' = 300 × sin40° = 300 × (0.642) = 192.84 mph
Therefore pilot 1 will gain altitude faster then pilot 2 by
200 - 192.84 = 7.16 mph.
