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ioda
3 years ago
9

You need to buy some chicken for dinner tonight. You found an ad showing that the store across town has it on sale for $2.79 a p

ound, which is cheaper than your usual neighborhood store, which sells it for $2.89 a pound. Is it worth the extra drive? (Hint: be sure to consider that you must drive to the store and back home.)
First, determine what information you need to answer this question, then click here to display that info (along with other info).
- How much chicken will you be buying? 7 pounds
- How far away are the two stores? My neighborhood store is 2.3 miles away, and -takes about 9 minutes. The store across town is 8.3 miles away, and takes about 22 minutes.
- What kind of mileage does your car get? It averages about 22 miles per gallon in the city.
- How many gallons does your car hold? About 16 gallons
- How much is gas? About $3.79/gallon right now.
A) Going to the further store is cheaper
B) Going to the close store is cheaper
The cheaper option saves you $ ______
Mathematics
1 answer:
san4es73 [151]3 years ago
3 0

Answer:

B) Going to the close store is cheaper.

Step-by-step explanation:

Cost of going to the next town:

(8.3mi/22mi) × $3.79 = $1.43

Cost of going to the close store:

(2.3mi/22mi) × $3.79 = $0.40

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A square pyramid has a base with side lengths each measuring 40 inches. The pyramid is 21 inches tall, with a slant height of 29
Alchen [17]

Answer    

Find out the  what is the surface area of the pyramid .

To proof

Formula

Surface area of a square pyramid

= a^{2} + 2a \sqrt{\frac{a^{2}}{4} +h^{2}

Where a is the base edge and h be the height .

As given

A square pyramid has a base with side lengths each measuring 40 inches. The pyramid is 21 inches tall, with a slant height of 29 inches.

i.e Base edge = 40 inches

Height =  21 inches    

Put values in the above formula

= 40^{2} + 2\times40\times\sqrt{\frac{40^{2}}{4} +21^{2}

solving

= 1600 + 80 \sqrt{\frac{1600}{4} + 441

= 1600 + 80\times\sqrt{841}

\sqrt{841} = 29

= 1600 + 80 × 29

= 3920 inches²

Therefore the surface area of the pyramid is 3,920 inches²

Hence proved

4 0
3 years ago
Read 2 more answers
PLS HELP c:
Leona [35]

Answer:

108, 108, 72

Step-by-step explanation:

Vertical angles are congruent and if the measure of 1 of the angles is 72 degrees and straight lines equal 180 degrees you have to subtract 72 from 180 which equals 108.

4 0
3 years ago
How many ways can a person toss a coin 13 times so that the number of heads is between 7 and 10 inclusive?
maks197457 [2]

Answer:

4004

Step-by-step explanation:

The number of combinations of choosing r objects from a group of n is nCr.

So the number of ways to get 7, 8, 9, or 10 heads from 13 coin tosses is:

₁₃C₇ + ₁₃C₈ + ₁₃C₉ + ₁₃C₁₀

= 1716 + 1287 + 715 + 286

= 4004

3 0
3 years ago
Please help me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#5
Evgen [1.6K]
A is the correct answer.
5 0
3 years ago
The manufacturer wants to an a large an existing manufacturing facilities such that total for areas 1.5 times that of the curren
tatiyna
I think the answer is C
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