Please Answer FastWhat is the exact area of a circle with a diameter of 18 feet?

A.
36π square feet

B.
81π square feet

C.
324π square feet

D.
1296π square feet

Answers

Answer 1

Answer: area = π*r^2
= π * 9^2
=81π square feet. - B is your answer

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PROBLEM #1Keith has $500 in a savings account at the beginning of the
summer. He wants to have at least $200 in the account by the
end of summer. He withdraws $25 a week for his cell phone
bill.
Write an inequality that represents Keith's situation.

Answers

Answer:

500 - 25w ≥ 200

Explanation:

Translate every verbal statement into an algebraic statement,

1. Keith has $500 in a savings account at the beginning of the summer.

Initial amount: 500

2. He wants to have at least $200 in the account by the end of summer.

Final amount ≥ 200

3. He withdraws $25 a week for his cell phone bill.

Call w the number of weeks

Withdrawls = 25w

4. Write an inequality that represents Keith's situation.

Create your model: Final amount = Initial amount - withdrawals ≥ 500

500 - 25w ≥ 200

With that inequality you can calculate how many week will pass before his account has less than the amount he wants to have in the account by the end of summer:

500 - 200 ≥ 25w

300 ≥ 25w

300/25 ≥ w

12 ≥ w

w ≤ 12

That represents that he can afford spending $ 25 a week during 12 weeks to have at least $ 200 in the account.

How do you do this problem 3 2/5 + 3/8 + 1 1/2

Answers

Answer:5&11/40ths

Step-by-step explanation:

Add the whole number first

4+2/5+3/8+1/2

Find the Least Common Deminator (5,8,2), which would be fourty. Make the denominators the same as the LCD then simplify so all the denominators will be the same.

4+16/40+15/40+20/40

4+16+15+20/40

4+51/40

4+1&11/40

5&11/40

Hope this helps, have a BLESSED AND WONDERFUL DAY! As well as a great Superbowl Weekend! :-)

- Cutiepatutie ☺❀❤

A 2 pound box of spaghetti cost $2.50 Philip says that the unit cost 2/2.50= $0.80 per pound explain his error

Answers

You divide $2.50 by 2, not 2 by $2.50. Therefore, $2.50 by 2 is $1.25 per pound, not $0.80

Do you have any info on adding and dividing fractions?

Answers

When you add fractions, you NEED to have the same denominator.

When you divide fractions, you do NOT need to have the same denominator.

$(a)/(c) + (b)/(c) = \boxed{\bf{(a+b)/(c)}}$

$(a)/(b) / (c)/(d) = (a)/(b) * (d)/(c) = \boxed{\bf{(ad)/(bc)}}$

a, b, c, and d are variables. You can replace them with any number.

adding and dividing fractions:

To add (and subtract) fractions, we need the same denominator. If both fractions that you are adding (or subtracting) do not have the same denominator, you will have to find the least common denominator of both of them.
If the fractions are:
$(2)/(3)$ + $(1)/(2)$
3 × 1 = 3 2 × 1 = 2
3 × 2 = 6 2 × 2 = 4
2 × 3 = 6
The least common denominator is 6
$(2*2)/(3*2)$ + $(1*3)/(2*3)$
$(4)/(6) + (3)/(6)$ = $(7)/(6)$ or $1(1)/(6)$

For diving fractions, you do not need common denominators
You can multiply the first fraction by the second fraction's reciprocal.

What is the slope of the line through points (0,6) and (5,-4)

Answers

the slope between the points (x1,y1) and (x2,y2) is
slope=(y2-y1)/(x2-x1)

(0,6) and (5,-4)
x1=0
y1=6
x2=5
y2=-4

slope=(-4-6)/(5-0)=-10/5=-2
slope=-2

there are 798 calories in six 10-ounce bottles of apple juice. How many calories are there in one 10-ounce bottle of apple juice