Answer: It's in the screenshot
Step-by-step explanation:
Answer:
15 boys and 10 girls
Step-by-step explanation:
you multiply 3:2 by 5 and you get 25 in total
Answer:
a=-18
Step-by-step explanation:
It is the same as -1a=18, so you can just transfer that negative to the other side
Answer:
The unit price of a 4 pound bag of sand is $0.13.
Step-by-step explanation:
0.52÷4=$0.13
Answer:
D. 160
Step-by-step explanation:
The sum of the sequence 1, 2, 3, 4, ... , n is n(n + 1)/2.
Here, you have the sum of 4(1, 2, 3, 4, ... , n), so the sum is 4[n(n + 1)/2]
In this case, the first term is 0, so the last term is the 8th term of the sequence above, so n = 8
4[n(n + 1)/2)] =
= 4[8(9)/2]
= 4[72/2]
= 4(36)
= 144
The closest answer is D. 160
