Answer:
$200
Step-by-step explanation:
Half of $800 is $400, and a quarter of $800 is $200. $800-$400-$200=$200
Side1 + side2 + side 3 = 84
side1 is the shortest side, and its length is x.
side2 is the middle side, and its length is x + 7
side3 is the longest side, and its length is 2x - 7
x + x + 7 + 2x - 7 = 84
4x = 84
x = 21
side1 = x = 21
side2 = x + 7 = 21 + 7 = 28
side3 = 2x - 7 = 2(21) - 7 = 42 - 7 = 35
The length of the sides are 21 m, 28 m, and 35 m.
Answer:
22.5
Step-by-step explanation:
15 percent of 1 dollar is 15 cents
0.15 times 150 is
22.5
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Answer:
use x to represent the unkown numbers
and y to represent the one number which is more than 11
so the equation will be like this
x+x+y=87
x+x+11=87
2x+11=87
2x=87-11
2x=76
now divide both sides by the x variable
2x/2=76/2
x=38
now you know one x to be 38
and the question made it clear that one number is eleven times more than the other
therefore the other number is 49
so 38+49=87