Answer:
(-3,4)
Step-by-step explanation:
3x-y=-13
y=4
Substitute the second equation into the first equation
3x - 4 = -13
Add 4 to each side
3x -4+4 = -13+4
3x = -9
Divide by 3
3x/3 = -9/3
x = -3
(-3,4)
The slope would be 0 because if you put in the coordinates with the formula, you would get the slope as 0. This also makes sense because both points have the same y point, so that means that the line wasn’t travelling up or down. And since it was only going through -8 that would be the y-intercept.
Answer:
The percent increase in iron = 50 %
Step-by-step explanation:
Initial amount of iron per serving = 1.2 mg
After an increase the amount of iron per serving = 1.8 mg
Increase in the amount of iron per serving = 1.8 - 1.2 = 0.6 mg
Percent increase in iron is calculated as


Put the values in above formula we get
= 50 %
Therefore the percent increase in iron = 50 %
Well to solve this you write out three equations
x+(x+1)+(x+2)=1623
then
3x=1620
x=540
so the three consecutive integers are 540,541, and 542.