7 is a solution
4 is extraneous
The work is attached below
Answer:
y + 3 = 1 ⋅ (x + 2).
Step-by-step explanation:
Find the equation using point-slope formula.
Slope-intercept form:
y = x − 1
Point-slope form:
y + 3 = 1 ⋅ (x + 2)
Answer:
500
Step-by-step explanation:
A = the unknown number that we need to find
A x 13/100 = 65
=> A x 13 = 6500
=> A = 6500 / 13
=> A = 500
13% of 500 is 65.
Let's check whether the answer is correct or not.
=> 500 x 13/100
=> 5 x 13
=> 65.
So, the number whose 13% is 65 is 500
1 lb for 2.50
3 lbs for 4.25......4.25/3 = 1.42 per lb
5 lbs for 7.20......7.20/5 = 1.44 per lb
10 lbs for 15........15/10 = 1.50 per lb
The better deal (the cheapest one) = 3 lbs for 4.25 <==
