Does anyone know how he got from step one to step two????
1 answer:
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Hours He will work in this Week=20 hours.
Number of Hours he will Teach=x
Number of Hours He will Eat icecream=y
We know
x+y=20
x=20-y (Equation 1)
Teaching French=$12
Eating Icecream=$8
Let He Total Money he Earn from Teaching.
=12×Number of Hours he work
=$12x
Eating Icecream=$8
Total money spent=$8y
But Total Money=$190
MEANS
$12x+$8y=$190
12(20-y)+8y=190
240-12y+8y=190
-4y=190-240
-4y=-50
y=50/4
y=12.5
We know x+y=20
x+12.5=20
x=20-12.5
x=7.5 hours
MEANS He have to teach At least =7.5 hours.To make $190
There are many ways to solve this. I think the easiest way for this one is to add the equations up.
The you solve that, now that y is gone. You get x=2.
Now plug in x into one of the original equations.
Finish solving, and you get y=8.
The answer is (2,8)
The you solve that, now that y is gone. You get x=2.
Now plug in x into one of the original equations.
Finish solving, and you get y=8.
The answer is (2,8)
Answer:
The fractions are not in order from least to greatest.
Step-by-step explanation:
Given order of fractions from least to greatest:
To check if the fractions are in correct order.
Solution:
The fractions given have same numerators but different denominators.
For fractions the higher the denominator the lower is the value of that fraction.
Thus, in the given list the least value fraction will be the fraction with the greatest denominator which is and the greatest value fraction will be the fraction with the least denominator which is
So, the order of the fractions from least to greatest is not correct. Instead the order is from greatest to least.
The correct order from least to greatest should be:
.