Answer: 25t+45m
Step-by-step explanation:
Really simple because if they traveled 25mi/h for t hours, that makes it 25t miles. They traveled 45mi/h for m hours so it's 45m. If you add them together, 25t+45m.
If this helped, brainliest please.
Answer:
2.5 hours
Step-by-step explanation:
4 - 1.5 = 2.5
You must subtract 1.5 from the amount of hours he plays piano, which is 4. This is because he spends 1.5 hours less playing drums than he does playing piano.
The answer i got is in the image below
Answer:
20 cm and 34.64 cm.
Step-by-step explanation:
Consider the triangle with vertex 60 degrees. The diagonal is perpendicular to the other diagonal , and it bisects the 60 degree angle.
So we have the relation cos 30 = x / 20 where x = 1/2 of the diagonal.
x = 20 cos 30
x = 17.32
And as the diagonals bisect each other this diagonal = 2*17.32 = 34.64 cm.
Similarly, the other diagonal = 2 * 20 cos 60 = 20 cm
p = pennies
q= quarters
p = 2q+5 (1)
.25q+.01p=1.67 (2)
substitute the equation for pennies (1) into the 2nd equation
.25q+.01(2q+5)=1.67
distribute
.25q +.02q +.05 = 1.67
combine like terms
.27q +.05 =1.67
subtract .05 from each side
.27q = 1.62
divide by .27
q=6
p=2q+5
p=2(6)+5
p=12+5
p=17
There are 6 quarters and 17 pennies
