Answer:
64
Step-by-step explanation:
1.6 x 40 it's math
Answer:
225 + 63n for n- a natural number,
set 512=225+63n to find total number of weeks
63=21*3
use n=4 to solve the amount saved in 4 weeks
they wont 60*4=240, 240+12, 252+225=477
how much are the saving a day
what do they need to put up to have enough in 4 weeks
how much a day do the need to save to go in 1 week
etc
Step-by-step explanation:
Twelve people can eat pizza. This is what I did. First I divided three and one fourths which would be same change flip into three oneths times four oneths which would equal twelve people. U could also draw a picture for this. First draw three circles that represent the pizza. Then divide each circle into four parts. Each part represents a person. Count all of the parts in all three pizzas. You would get twelve. Therefore the answer is twelve. I hope this helped u!
Answer:
Below in bold.
Step-by-step explanation:
First term a1 = 13
11th term a11 = a1 + 10d = 83
So a1 + 10d - a1 = 83 - 13
10d = 70
d = 10
The common difference d = 7.
Sum of n terms = (n/2)[2a1 + (n - 1)d]
Sum of the first 20 terms:
S20 = (20/2)[2*13 + (20-1)7]
S20 = 10 *(26 + 19*7)
S20 = 10*159 = 1590.