55+85=140
180-140=40
10x=40
divide by ten on each side
x=4
Answer:
810
Step-by-step explanation:
The original price of the car = 100%.
Price is decreased by 10%- price now equal 90% of original.
Let original price = x
.9x=729
x=810
Check:
810 - .1(810) = 729
True!
Find a common denominator. The lowest one would come from you multiplying 2/5 by 4 on each side and 1/4 by 5 on each side. You are left with 8/20 and 5/20, added together would be 13/20.
Answer:
18 13/20
Step-by-step explanation:
18.65/1
multiply the numerator and denominator by 100 to get rid of the decimal
1865/100
find the greatest common divisor (which is 5)
373/20
to get a mixed number find out how many times 20 goes into 373 which is 18 in this case with a remainder of 13
18 13/20
Answer:
惡癖惡癖峨眉峨眉
Step-by-step explanation:
what is 5[6 1 2 -6]-[1 6 -6 6] matrix?