Answer:
it is 3 because the 3 is in circle
Answer:the number of kids that used the public pool that day is 122
the number of adults that used the public pool that day is 92
Step-by-step explanation:
Let x represent the number of kids that used the public pool that day.
Let y represent the number of adults that used the public pool that day.
214 people used a public swimming pool. This means that
x + y = 214
1.50 for kids and $2.25 for adults. The receipt totaled to $390. This means that
1.5x + 2.25y = 390 - - - - - - - - - -1
Substituting x = 214 - y into equation 1, it becomes
1.5x
1.5(214 - y) + 2.25y = 390
321 - 1.5y + 2.25y = 390
- 1.5y + 2.25y = 390 - 321
0.75y = 69
y = 69/0.75 = 92
Substituting y = 92 into x = 214 - y, it becomes
x = 214 - 92 = 122
Answer:
Step-by-step explanationtake the diameter, 10cm and multiply by pi (3.14) and the answer is 31.4
Answer:
f'(x) = 2x + 
Step-by-step explanation:
differentiate using the power rule
( a
) = na
Given
f(x) = x² - 
+ 9 = x² - 4
+ 9 , then
f'(x) = 2x + 12
= 2x +
Step-by-step explanation:
Inequalities are solved just like equations the only difference is that the inequality sign has to be considered.
We are writing the steps with reason
So,
1. Given
2. Distributive property:
3. Combine like terms
4. Subtraction property of order
5. Addition property of order
6. Division property of order
Keywords: Inequality, Properties
Learn more about inequalities at:
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