28. Kay is saving $200 a month into an account earning 5% interest. How long will it
1 answer:
You might be interested in
Answer:
160/196
Step-by-step explanation:
it would be easier if you converted all fractions to improper fractions
so 3 1/5 would equal 16/5 and 2 4/5 would equal to 14/5
: to solve this you would need the same common denomenator,
to do this you can multiply 5 and 3 by something to make the lowest common denominator, which would be 15
thus
multiplying first fraction by 3 and the second by 5
42/15 - 10/15 = 32/15
now 32/15 divided by 14/5
the rule for dividing fractions, is flipping the fraction which you will be using to divide, and then multiplying it to the first fraction:
multiplied by
thus, answer is 160/196
Answer: 41
= 41
We can draw the following picture:
then, we can see that the parallelogram consists in 2 equal triangles:
The area of a triangle is
By substituting the given values into the area formula, we get
Therefore, the area of the parallelogram is twice the area of one triangle:
which gives:
that is, the answer is 24000 ft^2
