The answer is “No” because the line is not proportional.
Answer:
At 5% , $300 was invested
At 15%, $4,700 was invested
Step-by-step explanation:
Let the amount invested at 5% be $x and the amount invested at 15% be $y
x + y = 5000 ••••••(i)
Let’s work with the interest;
5% of x + 15% of y = 720
0.05x + 0.15y = 720 •••••(ii)
From i;
x = 5000-y
Insert this into ii
0.05(5000-y) + 0.15y = 720
= 250 - 0.05y + 0.15y = 720
250 + 0.1y = 720
0.1y = 720-250
0.1y = 470
y = 470/0.1
y = $4700
x = 5000-y
x = 5000-4700 = $300
15 ÷ 4 = 3.75
3.75 minutes to type 1 page
3.75 × 20 = 75
75 minutes to type 20 pages/entire paper
Answer:
20%
Step-by-step explanation:
Basically Belle did 8 + 32 = 40 problems total. If she got 8 right then she got 8/40. 8/40 = 1/5 = 20%. :)