The amounts are "a" on the CD at 4% and "b" on the bonds at 7%
now, she had 12,000, so we know whatever "a" and "b" are, they
a + b = 12000
now... what's 4% of a? well, (4/100) * a, or 0.04a
what's 7% of b? well (7/100) * b or 0.07b
we know the total interest, that 4% and 7% amounts, add up to 720, thus
0.04a + 0.07b = 720
thus
solve for "a", to see how much was invested in CD
what about "b"? well b = 12000 - a
Answer:
calculator answer is 25.12 and not accounting for pie is 8(pie)
Step-by-step explanation:
C=2(pie)r
C=2(3.14)(8/2)
Hope that this is helpful :)
Answer:
a. Volume = π15.02 9.0=6361.73
b. I am very sorry, I don't know
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use cosine:
We have:
Substitute:
<em>cross multiply</em>
<em>divide both sides by 309</em>
15 people, each want 2 hamburgers, so there will be 15*2 = 30 hamburgers.
However, we only want the plain hamburgers.
3 people want hamburgers with cheese: 30-3 = 27 plain hamburgers
2 people want hamburgers with mustard: 27-2 = 25 plain hamburgers
2 people want hamburgers with catsup: 25-2 = 23 plain hamburgers
Jim and his dad will make 23 plain hamburgers.
Hope this helps!! Let me know if you have ANY questions.