Answer:
−
27
x
−
39
Step-by-step explanation:
I had this exact question before on my end of unit I passed it. If this helps please send thanks and feel free to give brainliest.
Answer:
are you sure this is high school level stuff? its 9% of 100
Step-by-step explanation:
Answer: Speed=210 hours/3.5 hours, 210 miles=3.5 hours*speed, and 3.5 hours=210 miles/speed. May you check my answer?
Step-by-step explanation:
The simplest answer is A. Proof:
PR = RS (given)
Angle R1 = Angle R2 = 90°
QR = QR by reflexivity, Hence the 2 triangles are equal SAS
Represent the speed of the first plane by f and that of the second plane by s.
Then 4f+4s = 3800 miles, or f+s = 950 miles. Thus, f + (f + 80) = 950, so that
2f = 870, and f = 435 mph. Then s = (435+80)mph, or 515 mph.
The first plane flew at 435 mph and the second at 515 mph.
Check: (4 hours)(435 mph) + (4 hours)(515 mph) = 3800 mi (as expected)