Answer: 
Step-by-step explanation:
Given
Luis used 590 gm of flour each day
If he continues to use it for 3 weeks
A week has 7 days; so 3 weeks have 21 days
The flour used in 21 days

Thus,
of flour is used in 3 weeks
Answer: Slope = 1.200/2.000 = 0.600
x-intercept = -4/3 = -1.33333
y-intercept = 4/5 = 0.80000
Step-by-step explanation: 6x−10y=−8
Step 1: Add 10y to both sides.
6x−10y+10y=−8+10y
6x=10y−8
Step 2: Divide both sides by 6.
6x/6=10y-8/6
x=5/3y+-4/3
Slope = 1.200/2.000 = 0.600
x-intercept = -4/3 = -1.33333
y-intercept = 4/5 = 0.80000
Answer:
63 or 21
Step-by-step explanation:
Budget: $2,500
Subtract clean up fee: 2,500-80
You are left with $2,420
2,420÷38(amount of money person)
This equals 63.68
Leave as whole number since you can't have 0.6th of a person lol
Now if its $80 cleanup fee PER person that would change the math to:
80(cleanup)+38(person)= $118
2,500(budget)÷118= 21.186
leave as 21
the wording of the question is kinda funky.
1/2 + 9/20 = 19/20
1/20 + 1/10 = 3/20
1/8 + 11/16 = 13/16
2/9 + 5/9 = 7/9
3/20 + 3/4 = 18/20 = 9/10
7/17 + 1/17 = 8/17
The second one. It cancels out one but leaves one coefficient left which you divide and get the answer of x=0