Answer:
$24.5
Step-by-step explanation:
Given that:
cost of 8 books = 19.60$
So the cost of one will be found by:
cost of 1 book = 19.60$/8
cost of 1 book = $2.45
Now finding cost of 10 books:
cost of 10 books = $2.45 *10
cost of 10 books = $24.5
i hope it will help you!
The sum of x and 9 divided by 2 is equal to 3x
(x + 9)/2 = 3x
Note the equal sign, what you do to one side, you do to the other. First, multiply 2 to both sides
(x + 9)/2(2) = 3x(2)
x + 9 = 6x
Subtract x from both sides
x (-x) + 9 = 6x(-x)
9 = 5x
Isolate the x. Divide 5 from both sides
9/5 = 5x/5
x = 9/5
9/5 is your answer for x
hope this helps
Answer:
There are infinite answers to your question
y= 5x + 1
is one of them
Step-by-step explanation:
Answer:
The answer is 3 and 5
Step-by-step explanation:
3 and 5 is 15 (correct)
10 and 25 is 250 (not correct)
30 and 60 is 1800 (not correct)
60 and 75 is 450 (not correct)
Answer:
y = 15x +75
Step-by-step explanation:
15 is the number of months and changes based on how many months
75 doesn't change, remains constant.