Hi!
-32 = 4b
4b = -32
b = -32 : 4
<u>b </u><u>=</u><u> </u><u>-</u><u>8</u>
Answer:
32%
Step-by-step explanation:
<h3>Given that:</h3>
- Jackie is saving money to buy a new cell phone.
- The cell phone costs $175
- she has already saved $56
<h3>To find:</h3>
- The percent of the cost of the cell phone has Jackie saved
In order to find the percent of the cost of the cell phone has Jackie saved,
- divide the cost of the cell phone by the amount of the money Jackie saved
- Multiply the result (1) by 100
See below how it's done:

dividing yields:

multiplying yields:

Alternative:
Instead of dividing,we can consider reducing the fraction and multiply that with 100 to get the answer.

In conclusion:
Jackie has saved 32% of the cost of the cell phone
365........................
The time it will take for Tyler to finish planting tomatoes alone is; 75 minutes
<h3>
Understanding Work Proportion</h3>
We are told that three people are planting tomatoes in a community garden. The time each alone takes to plant are;
Thus, their individual rates are;
Since together, they take 20 minutes, then it means that;
1/50 + 1/x + 1/(x + 15) = 1/20
Multiply through by x(x + 15) to get;
(x² + 15x)/50 + (x + 15) + x = (x² + 15x)/20
Multiply through by 100 to get;
2(x² + 15x) + 100(x + 15) + 100x = 5(x² + 15x)
100x + 1500 + 100x = 5(x² + 15x) - 2(x² + 15x)
200x + 1600 = 3x² + 45x
3x² - 155x - 1600 = 0
Solving this using quadratic formula calculator online gives;
x ≈ 60
Thus, the time it will take tyler alone to finish is;
60 + 15 = 75 minutes
Read more about Work Proportion at; brainly.com/question/1781657