Answer: 6.62 weeks
Step-by-step explanation:
Time taken by Ryan to build a home = 13.4 weeks
Time taken by Jack to build the same home = 13.1 weeks
Let t be the time to complete a house if they work together, then
= 


Answer:
a = 2500mm
b = 5km
c = 2e+7
Step-by-step explanation:
Explication étape par étape:
Compte tenu des expressions ';
A = 4 (x + 5) -8
B = x² + 15
Nous devons vérifier si A = B pour les deux valeurs de x à x = 1 et x = 3
à quand x = 1
A = 4 (1 + 5) -8
A = 4 (6) - 8
A = 24-8
A = 16
B = x² + 15
B = 1² + 15
B = 1 + 15
B = 16
Donc à quand x = 1, A = B = 16
quand x = 3
A = 4 (x + 5) -8
A = 4 (3 + 5) -8
A = 4 (8) - 8
A = 32-8
A = 24
B = 3² + 15
B = 9 + 15
B = 24
Également lorsque x = 3, A = B = 24
Cela montre que le postulat d'Emmas est juste.
Answer:
453.6 grams
Step-by-step explanation:
40 x 5.67 = 226.8
226.8 x 2 = 453.6
Answer:
- Cost is Increasing at a rate of 20,000 per week
- Revenue is decreasing at a rate of 100,000 per week
- Profit is decreasing at a rate of 120,000 per week
Step-by-step explanation:
The cost, revenue, and profit equations for a company manufacturing calculators are given below:
- Cost, C=90000+40x
- Revenue,

- Profit = R - C
When Production output x=4000
<u />
<u>Change in Cost</u>
Cost, C=90000+40x

<u>Change in Revenue</u>

<u>Change in Profit</u>

Therefore, when production output is 4000 and increasing at a rate of 500 calculators per week,
- Cost is Increasing at a rate of 20,000 per week
- Revenue is decreasing at a rate of 100,000 per week
- Profit is decreasing at a rate of 120,000 per week