Answer:
Price of rice per gram = $ 0.006 per gram or 0.6 cents per gram .
Step-by-step explanation:
Given: David wants to make 10 servings, where each serving has 75 grams of rice.
Total quantity of rice required = 10 x 75 = 750 grams
Overall, David spends 4.50 dollars on rice.
i.e. cost of 750 grams of rice = 4.50 dollars
Price of rice per gram =(cost of 750 grams of rice ) ÷ 750
= (4.50 dollars ) ÷ 750
= $ 0.006 per gram.
Price of rice per gram = $ 0.006 per gram.
12.76*10=127.6 and 127.6 to the 2nd power is 16281.76
Answer:
The appropriate interest rate would be 10%.
Step-by-step explanation:
Without further info I must assume that you want "simple interest" on the $25000 principal. The appropriate formula for simple interest is:
i = p*r*t, where p is the principal amount, r is the interest rate as a decimal fraction, and t is the time in years.
i
We want the rate, r, so we solve this equation for r: r = -------------
p*t
Now we're in a position to substitute the known values of i, p and t and to calculate r from them:
$5000 1
r = ---------- ------------- = --------------- = 0.10
($25000)(2 yrs) 10
The appropriate interest rate would be 10%.
