A farmer has 13 cows. a bolt of lightning kills all but 5 of them. how many cows survived?
1 answer:
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Answer:
Step-by-step explanation:
step 1
Convert mixed numbers to an improper fractions
step 2
we know that
A teacher reviews 9/2 papers per hour
using proportion
Find how many papers will the teacher review in 19/3 hours
Let
x-----> the number of papers
Convert to mixed numbers
Given maria has in the pennies & quarters.
she has twice as many pennies as quarters.
find out the coins
let us assume the quarters are x
than the pennies are 2x.
Formula
value of the pennies + value of the quarters = total value of coins
1 quarters =$ 0.25
1 pennies = $0.01
Thus
0.25x + 0.01 (2x) = 2.43
0.27 x = 2.43
x = 9
2x = 18
i.e the number of quarters are 9 and the number of pennies are 18.
Hence proved
Answer: D. 15
Step-by-step explanation:
Given : The revenue each season from tickets at the theme part is represented by .
The cost to pay the employees each season is represented by .
From the given graph , we can see that at 4th season, the profit = 15
Hence, the estimated profit after four seasons. =15