If x = 4 and y = 7 , evaluate the following expression:
3(3y - 4x)
2 answers:
Answer:
The answer is 15
Step-by-step explanation:
The answer is 15 because I used the order of operations. So, first I calculated the paranthesis. Then I multiplied left and right and I got 15.
Answer:
the answer is 47
Step-by-step explanation:
you have to look at the y as 7 plug the 7 in the parentheses on the left side of the minus sign and you get 63. Now look at the 4x. X is now replaced with 4. 4 times 4 is 16. 63 minus 16 is 47.
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Answer:
a = 5
Step-by-step explanation:
a +a+4 + 2a-3 = 21
4a +1 =21
4a = 20
a = 5
P=156 cm
The perimeter for the rectangle is 64.5m.
Answer:
let dimention of original garden be x
then (x-8)(x-5) = 180
x^2 -13x -140 = 0
(x-20)(x+7)=0
x= 20 or x = -7
x = 20
original area = (20)^2
= 400 m^2
5(2j+3+j)
