What would the answer for this question be
2 answers:
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Answer:
Answer: Sum of first 90 terms is Option d. 11655
Step-by-step explanation:
We have to find the sum of first 90 terms of the sequence -4,-1,2,5,8......
First we find the 90th term of the sequence
As we know the formula A(n)= A(1)+(n-1)d
Given from the sequence
A(1) = (-4)
n=90
d = 3
So A(n) = -4+(90-1)3
= (-4)+89×3
= 263
Now we know formula for the sum of any sequence is
Sum S(n) =
Now we know n= 90
A(1) = -4
A(n) =263
Now we put the value in the formula
S(n)=
= 45×259
= 11655
Answer:
A) 3 cups
B) $40.50
Step-by-step explanation:
<u>Part A</u>
Step 1 - divide the target number of pralines by the number the recipe makes:
108 ÷ 18 = 6
Step 2 - multiply this number by the amount of light cream in the recipe for one batch:
This means that 3 cups are needed.
<u></u>
<u>Part B</u>
Step 1 - Divide the total pralines by 4:
108 ÷ 4 = 27
Step 2 - Multiply this number by the price Kia is going to sell them:
1.50 * 27 = 40.5
So she will make $40.50 for the school.
Hope this helps!