Answer:
A) To solve the ratio, cross multiply then divide.
B)
A / 5/8 = 3/5 / 2/3
Cross multiply:
(5/8 x 3/5) =( A x 2/3)
3/8 = 2/3A
Divide both sides by 2/3:
A = 3/8 /2/3
A = 3/8 x 3/2
A = 9/16
we are given trapezoid
Area is 104cm^2
a=4x-1 cm
b=x+2 cm
h=8cm
we can use area formula
we can plug above values
now, we can solve for x
so, we get
length of longer base is a
we can plug x=5 into a
...............Answer
Answer:
B and c
Step-by-step explanation:
because the y =5 and more
The Angles that are congruent to angle 6 are 2,4 and 8
Speed of the first car is 30 mph and that of the second car is 20 mph.
Step-by-step explanation:
- Step 1: Let the speed of the first car be x mph. Then the speed of the second car = x - 10 mph. Distance traveled by the second car = 60 miles. Find the time taken by the second car to travel this distance.
Time = Distance/Speed
= 60/x - 10 ------ (1)
- Step 2: Find the time taken by the first car to travel given distance of 90 miles.
Time = 90/x ------- (2)
- Step 3: Given that both cars take the same amount of time, equate the 2 equations. (1) = (2)
⇒ 60/x - 10 = 90/x
⇒ 60x = 90(x-10)
⇒ 2x = 3(x - 10)
⇒ 2x = 3x - 30
⇒ -x = -30
∴ x = 30 mph
⇒ x - 10 = 30 - 10 = 20 mph