Answer: 216
Step-by-step explanation:
Answer:
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Step-by-step explanation:
Answer:
36%
Step-by-step explanation:
line up $ and % data like this:
$2.79 represents 100%
$3.79 represents X%
cross multiply
X*2.79 = 3.79*100
divide both sides by 2.79
X= 3.79*100 / 2.79 ≈ 136%
so it increased 36%
For problems like this we can use algebra to help us, the farenheight 6 hours ago was:
(2xt)-6=-20
We have to balance the sides out, first we minus 6
2xt=-26
Now we can divide by 2
t=-13
We now know the temperature 6 hours ago was -13
6x
x=10
So replace "x" in 6x with 10 and you get,
6(10)
It can be seen as
6 x 10
and 6 x 10 is 60.
So your answer would be 6x = 6(10) = 60
