Answer:
4
Step-by-step explanation:
12+8 = 20
20/5 = 4
Answer:
8 Friends
Step-by-step explanation:
First convert 4 1/3 to a mixed fraction
4 1/3 --> 13/3
Then divide by 1/2 to find how many friends per 1/2 candy bar with 13/3 candy bars
(13/3)/(1/2)
=(13*2)/(3*1)
=26/3
8.66667
Since you can't have 0.66667 of a person you get 8 friends to give candy to
Answer:
9. 
8 10
10. 6 
9
Step-by-step explanation:
Answer:
The answer is 27
Step-by-step explanation:
The reason being, you can solve this 2 ways.
1) Combine like terms, 7a-4a = 3a.
Now just substitute (a=9) into 3a.
3 * (9) = 27.
2) Or just substitute a = 9 into the original expression.
7 * (9) - 4 * (9)
= 63 - 36 = 27
Answer:
y = (-1/3)(x + 10)
Step-by-step explanation:
The slope of the new (perpendicular) line is the negative reciprocal of the slope of the given line, which appears to be 3. Thus, the perpendicular line has the slope -1/3.
Using the slope-intercept form y = mx + b, and substituting the givens, we obtain:
y = mx + b => -6 = (-1/3)(8) + b, or
-6 = -8/3 + b. We must solve for the y-intercept, b:
Multiplying all three terms by 3 removes the fraction:
-18 = -8 + 3b. Thus, -10 = 3b, and so b must be -10/3.
The desired equation is
y = (-1/3)x - 10/3, or
y = (-1/3)(x + 10)
