The cost with just the 10$ off would be 39.98
Answer:
-1.2, -1/5, -.25, 3/4
Step-by-step explanation:
negative numbers are always less than positive.
The greater the negative number, the less it is.
-.25 = -1/4
-1.2, -1/5, -.25, 3/4
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The rate of Sue is 1 car per hour: 1 (c/h)
then the rate of Steve is 2 (c/h) , because Steve works faster, he can wash twice the number of cars, for the same amount of time.
Thus If Steve and Sue work together, they can wash 1 + 2 = 3
(cars per hour).
That is, the rate of Steve and Sue working together, is 3 (c/h).
In the first 30 minutes, Sue washes half of the car.
The remaining half will be washed at a rate of 3 (c/h)
The main formula is Work = Time * Rate
where Work is washing (1/2)c, and rate is 3(c/h)
Time=Work/Rate =
1/ 6 h =(1/6)*60 min = 10 min
Answer: 10 min
∠Q = ∠Y = 46°
∠P = ∠X = 86°
∠R = ∠W = 48°
So, the triangles are similar by AAA
The correct answer is as shown in the attached figure