Answer:
c = 40d+20
Step-by-step explanation:
He has to pay 20 dollars and that can't multiply so the forty has to multiply and it would have to be by d because c is the total cost
OK, so this is assuming we are considering that the first three kids to solve ARE NOT in the first day.
So we have 3 kids and it doubles
Day 1 : 6
Day 2 : 12
Day 3 : 24
Day 4 : 48
Day 5 : 96
Day 6 : 192
Day 7: 384
So it should take 7 days or a week to solve all the problems.
The equation:
(3 * 2)^x = 384
8 is in the tenth position.
In order to round up, the number behind it (in this case. 9) must be one of the numbers of 5-9. Because 9 meets this requirement, you can round 8 to 9 and this will make 9 to 0.
Your answer is 490
Answer:
Step-by-step explanation:
(3x + 8)
=(5x - 40)
Remove the brackets and replace 3x with -40 and -40 with 3x.
40 + 8
=5x - 3x (Remember that when you replace, the signs change from negative to positive and vise versa)
Solve for x. x= -24
Replace x with its value.
3(-24)+ 8= -64
5(-24) - 40= -160
