Answer:
a¹⁰
Step-by-step explanation:
So here we have (a⁵)², meaning we need to multiply the exponents to get a¹⁰
Fist plug in 7 in to the X values like so 12 (3 (7) +5 (7)) then solve in side the parenthesis 3×7 =21 and 5×7=35 then add them 35+21=56 and then you are left with 12(56) or 12×56= 672
First you find the area of the rectangle portion, by multiplying 40 by 100 = 4000cm(2)
Next find the area of the triangle by multiplying 30 by 40 then dividing in half.
30*40)/2=600
Now add the two
4600cm(2)
Answer: Wendy spent 4 hours on the train
Step-by-step explanation:
Let x represent the time that Wendy spent on the bus.
Let y represent the time that Wendy spent on the train.
Distance = speed × time
The bus averaged 40 mi/h. This means that distance travelled by the bus is 40x
The train averaged 60 mi/h. This means that distance travelled by the bus is 60y
Wendy took a trip from devenport to ohama, a distance of 300mi. This means that
40x + 60y = 300- - - - - - - - - - - - -1
The entire trip took 5 1/2(5.5) h. This means that
x + y = 5.5
Substituting x = 5.5 - y into equation 1, it becomes
40(5.5 - y) + 60y = 300
220 - 40y + 60y = 300
- 40y + 60y = 300 - 220
20y = 80
y = 80/20
y = 4
x = 5.5 - y = 5.5 - 4
x = 1.5
