Answer:
Step-by-step explanation:
the triangle with 9 as a side is a 45,45, 90 triangle. so there for x and 9 are congruent. Thus. x=9
Answer:
shipping and handling is <u>18.90</u> dollars
Step-by-step explanation:
percent means "per one hundred", so any percent can be written as a fraction over 100
30% = 30/100 = 0.30
Multiply 0.30 with the price 63 to get 0.30*63 = 18.90, which is the cost of shipping only. This result is added on top of the 63 dollars to get the total cost.
I did my best to explain it on graph paper. I hope this helps! Look at the attached picture.
Step-by-step explanation:
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let the number be x.
a number decreased means
x-
and the sum of the number and 4 is
x+4
to put the expression together, we get. put them in parentheses
x - ( x+4 )
= x - x -4
= - 4
