Answer:
The answer is in the photo
Step-by-step explanation:
If the sequence is say,
a,b,c,d ,....
then the common ratio r can be found by
r = b/a
or
r = c/b
or
r= d/c
and so on.
Answer:
210 cedis
Step-by-step explanation:
If ten bags of cocoa beans cost 350 cedis then you need to find the cost of one bag of cocoa beans
= 35 cedis
350 × 0.1 = 35
then multiply by 6 to get the cost of six bags
35 × 6 = 210
six bags of cocoa beans will cost 210 cedis.
Answer:
Width = 2 feet
Length = 6 feet
Explanation:
Variables:
Perimeter = p
Length = l
Width = w
Equation:
2w + 2l = p
It is given that:
l = 3w
and
p = 16 feet
With this information, we can rewrite the equation (substitute)
2w + 2(3w) = 16
Simplify
2w + 6w = 16
Add
8w = 16
Divide both sides of the equation by 8
Width = 2 feet
Length = 3(w) = 3(2) = 6 feet
Hope this helps :)
Answer:
Step-by-step explanation:
It appears to be the last step there that has evaded you. In the second line of work, you can see that what's in each set of parenthesis is exactly the same. Because of this, it is common and can be factored out. What's left is the 4x and the +5:
(5x - 3)(4x + 5)
That's factoring by grouping. It only works with polynomials that have an even number of terms so you can group them together in 2's.