Answer:
Step-by-step explanation:
Let x represent the amount invested at 3%. Then the total interest earned is ...
0.03x +0.02(25000 -x) = 510
0.01x = 10 . . . . . . . . . . . . subtract 500, collect terms
x = 1000
Mitchell invested $1,000 at 3% and $24,000 at 2%.
A + c = 824 represents number of tickets to sell
20a + 12c = 13,344 represents cost of each type of ticket
multiply equation 1 by -12 to cancel the variable 'c' and solve for 'a'
-12(a + c = 824)
-12a - 12c = - 9888
20a + 12c = 13,344 add equations together
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8a = 3456 divide both sides by 8
a = 432
To find children's tickets substitute adult numbers back into equation 1.
a + c = 824
432 + c = 824
subtract 432 from both sides
c = 392
adult 432, children 392
Answer:
Step-by-step explanation:
Solution
Start with the product
The product is 7*x where x is a number but not specified.
Now add 6
Answer: 7x + 6
This cannot be simplified any more than what it is now.
Answer:
A=2(wl+hl+hw)
Step-by-step explanation: