Answer:
the answer is $2,883$
Step-by-step explanation:
14.95 x 4 = 59.8
The Marino family spent $59.80 on tickets in total.
None of your answers above will answer the question. The proper value for x = 1/2 is 7/4. The work for this is below.
f(x) = 3x^2 + 1
f(1/2) = 3(1/2)^2 + 1
f(1/2) = 3(1/4) + 1
f(1/2) = 3/4 + 1
f(1/2) = 7/4
I assume you may have missed something in typing, but 7/4 would be your answer.
Answer:
26.36, 52.72, 65.90
Step-by-step explanation:
write the formula
2x + 4x + 5x = 145
add all the xs together
11x = 145
find x
11x ÷ 11 = 145 ÷ 11
x = 13.1818
subsitute the value of x to 2x, 4x, and 5x to find the side lengths
2(13.1818) = 2.3636
4(13.1818) = 52.7272
5(13.1818) = 65.909
2x+2(x-20)=340
2x+2x-40=340
4x=380
x=95 mph
x-20=75 mph
ans: the speed of the westbound train = 75 miles per hour
