So since c= 30 u do 2 times 30 which is 60 then since d=8 u do 4 times 8 which equals 32 then add 60 and 32 which is 92 so the answer is
ANSWER: D.92
Answer:
21.3776
Step-by-step explanation:
14x6.5=91 I think that the answer
The first term in the series is 336. The second term is obtained by subtracting 4 from the first term; subtract 4 from that to get the third term; and so on. Then the <em>n</em>-th term in the series is
336 - 4 (<em>n</em> - 1)
or
340 - 4<em>n</em>
The last term in this series is 4, so we solve for <em>n</em> :
340 - 4<em>n</em> = 4
336 = 4<em>n</em>
<em>n</em> = 336/4 = 84
The sum of the series is then
Recall that
Then the sum we want is
Answer:
Step-by-step explanation:
Given
Represent Goldfish with g and hermit crabs with h.
The first statement, we have:
The second statement, we have:
Required
Determine the selling price of 6 goldfish and 4 hermit crabs
The equations are:
--- (1)
--- (2)
Make g the subject in (2)
Divide both sides by 4
Substitute for g in (1)
Multiply through by 4
Open bracket
Collect Like Terms
Make h the subject
Substitute 4 for h in
This implies that:
1 goldfish = $2
1 hermit crab = $4
The cost of 6 goldfish and 4 hermit crabs is: