Jarell is using butcher paper to cover four faces of the cube shown. If Jarell Will not cover the bases then how many square inc
hes of butcher paper will Jarell need?
1 answer:
Given:
The side of the cube is a = 3.5 in.
To find: The required area of the butcher paper to cover four faces of the cube.
Explanation:
The formula of the lateral surface area of the cube is,
Substitute a = 3.5 in the formula, we get
Final answer:
The required area of the butcher paper to cover the four faces of the cube is 49 square inches.
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Answer:
a) $370
b) $305 is from interest; $3695 comes from deposits
Step-by-step explanation:
(a) The formula variables are not defined here, so choosing the appropriate formula is difficult. I worked through the "A =" formula because I'm used to seeing a formula in which A is the payment amount. Not so, here.
Here, P is the payment amount. Since you're asked to find the amount of payment, you want to choose and evaluate the "P=" formula. Payments and compounding are 2 times per year, so n=2, and the term is 5 years, so t=5. The interest rate, r, is 3.5%, or 0.035.
Then your formula evaluates to ...
... P = A((1 +r/n)^(nt) -1)/(r/n) = 4000·0.0175/(1.0175^(2·5) -1) ≈ 369.50
Part A wants the amount rounded up to the nearest dollar, so $370.
(b) 10 payments of $369.50 will total $3695.00. This is the amount from payments. The remainder, $4000 -3695 = $305 is from interest.
