Crystal can wash 1/16 car per minute
sarawong can wash 1/15 car per minute
total they wash 1/16+1/15 or 15/(15*16)+16/(15*16)=(15+16)/(15*16)=31/240 car per minute
work times time=total 1 car
31/240 times time=1 car
times both sides by 240/31
time=240/31 minutes
time=7.7419354838709677419354838709677 min
about 7.74 minutes or about 7 and 3/4 minutes
See the diagram of the circumscribed polygon attached below:
Answer:
A. 14.2 in.
Step-by-step explanation:
Perimeter = 3.7 + 3.6 + 3.4 + 1.9 + g
Let's find g.
a = 1.9 in. (Tangents drawn from an external point of a circle are congruent)
b = 3.4 - 1.9 = 1.5 in.
b = c = 1.5 in. (Tangents drawn from an external point)
d = 3.6 - 1.5 = 2.1 in.
d = e = 2.1 in. (Tangents drawn from an external point)
f = 3.7 - 2.1 = 1.6 in.
f = g = 1.6 in. (Tangents drawn from an external point)
✔️Therefore,
Perimeter = 3.7 + 3.6 + 3.4 + 1.9 + 1.6 = 14.2 in.
Answer:
sorry i dont know
Step-by-step explanation:
Answer:
The original price of the dress before the reduction was 90 pound.
Step-by-step explanation:
This question can be solved using a rule of three. The current price, which is 63 pound, is 100 - 30 = 70% = 0.7.
The original price is x pound, and is 100% = 1. So
x pound - 1
63 pound - 0.7
The original price of the dress before the reduction was 90 pound.
Simplify 8/3c to 8c/3
8c/3 - 2 = 2/3 c - 12
Simplify 2/3 c to 2c/3
8c/3 - 2 = 2c/3 - 12
Multiply both sides by 3
8c - 6 = 2c - 36
Simplify 8c - 6 - 2c to 6c - 6
6c - 6 = -36
Add 6 to both sides
6c = -36 + 6
Simplify -36 + 6 to -30
6c = -30
Divide both sides by 6
c = -30/6
Simplify 30/6 to 5
<u>c = -5</u>