Problem 13
10p+10q factors to 10(p+q). If we apply the distributive property, we can distribute the 10 to each term inside (p and q) to get
10(p+q) = (10 times p)+(10 times q) = 10*p + 10*q = 10p+10q
so we get the original expression again. Here 10 is the GCF of the two terms.
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Plug p = 1 and q = 2 into the factored form
10*(p+q) = 10*(1+2) = 10*(3) = 30
As a check, let's plug those p,q values into the original expression
10*p+10*q = 10*1+10*2 = 10+20 = 30
We get the same output of 30
This is a one step equation. Understanding that we know what he started out with, and what he he had left, we can set it up in two seperate equations. (Easy or Hard version if you prefer, or simple and more complex)
♡EASY♡
$32.00-$23.05= X
X= $8.95
♡"HARDER"♡
$32.00-X=$23.05
Subtract 32 from both sides.
-X=-$8.95
Multiply each side by -1.
-1(-x)=(-$8.95)-1
x=$8.95
Either way, Les spent $8.95 on food.
He was off by 9.5%, you just divide 5.43 by 6 then subtract that answer from 1 and you get your percentage
190 /3
?/5
so we can do this:
190 x 5 divided by 3
answer is: 316.6666666666667 km
there you go
Answer:
This looks like a UNIFORM distribution. There is no skewed and it's not a 'normal' distribution, which would be like a hill. does that make sense?