Answer:
About 1.5
Step-by-step explanation:
We can round 4/5 to 1.
We can round 3/8 to 4/8 = 1/2.
So our estimate is
4/5 + 3/8 =
about 1 + 1/2 = 1.5
(Shh... let's check using the calculator... it's 1.2. We were pretty close!)
Answer:
y=9
Step-by-step explanation:
slope is (y2-y1)/(x2-x1), so we plug in the values. (-4-y)/(0 - (-2)). so we get -4-y/2 since zero minus negative 2 is positive 2. given the slope is -13/2, -4-y must be equal to negative 13. So we set an equation of -13 = -4 - y. We add 4 to 13, and get -9 = -y. We multiply each side by a -1, and we get y equals 9.
We can check this by plugging 9 back into our original slope equation. (-4-9)/(0-(-2) which gives us -13/2.
Answer:
I got 
Please correct me If I'm wrong
Step-by-step explanation:
If she studied for 2.3 she would have a total of 11.5 because if she got 5 points per hour you just have to multiply it the number of hours she spent studying. So 2.3 x 5 = 11.5! :-)
