The answer is b.) sorry if I’m wrong but I did the work and got b.)
Answer:
Step-by-step explanation:
<u>Top base:</u>
<u>Left leg:</u>
<u>Bottom base:</u>
<u>Right leg:</u>
- c² = √6²+8² = √100
- c = 10 units
<u>Perimeter:</u>
- P = 6 + 8 + 10 + 12 = 36 units
Step-by-step explanation:
Plan A: A = 20G
Plan B: B = 15G + 40
To see when they will be equal set the equations equal to each other
20G = 15G + 40
5G = 40
G = 8
At 8 GB they will cost the same amount.
20(8) = $160
15(8)+40 = $160
Hope it will be Helpfull
thank you
This is a system of equations problem.
L = Hours of Swim Lessons
C = Hours as Cashier
L + C = 15 This is an equation for working 15 hours total.
so
L = 15-C
6L + 8C = 100 This is an equation for making at least $100.
so
6 (15-C) + 8C = 100 *You substituted 15-C for L here
90 - 6C + 8C = 100 Distribute
90 + 2C = 100
2C = 10
C = 5 You can work 5 hours as a cashier
L + C = 15
L + 5 = 15
L = 10 You can work 10 hours teaching swimming lessons.
If you want to make EXACTLY $100 you would work 5 hours as cashier and 10 hours teaching swimming lessons.
HOWEVER, the question says AT LEAST $100 and NOT MORE than 15 hours per week. Since you make more money as a cashier, any work over 5 hours will help you make over $100.
As long as you work at least 5 hours as a cashier and any remaining hours teaching swimming lessons, you will make over $100.
5 cashier, 10 swimming
6 cashier, 9 swimming
7 cashier, 8 swimming...
Mr. Pacey
JH/HS Social Studies Teacher
(but I've also helped with Math Team for JH & HS)
Recall that cosine is the reciprocal of secant, so is the same fraction, just upside-down.
