How to get answer by Mimiwhatsup:
Let's solve for b.
1/t = 1/a + 1/b
Step 1: Multiply both sides by t.
1= at+bt/ab
Step 2: Multiply both sides by ab.
ab=at+bt
Step 3: Add -bt to both sides.
ab+−bt=at+bt+−bt
ab−bt=at
Step 4: Factor out variable b.
b(a−t)=at
Step 5: Divide both sides by a-t.
b(a−t)/a−t = at/a−t
b= at/a−t
Answer:
B: 41, 45,51
Step-by-step explanation:
an=41 +(n-1)5
- an: nth term
- 41: first term in the sequence
- (n-1): position of term in the sequence, minus 1
- 5: common difference
To find 1st term plug in 1 for n,
an=41+(1-1)5 ->41
For 2nd term
an=41+(2-1)5 ->46
3rd Term
an=41+(3-1)5 -> 51
Hope this helps.
This is the answer to your question
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Answer:
Number 7 answer is 25.2 and 8 is 23 and 9 is 23