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nevsk [136]
3 years ago
15

Ella wanted to order candy online.company A is offering 2 2/4 pounds of chocolate for $32.50 while company B is offering 2 3/4 p

ounds of the same chocolate for $35.00 .which company is offering the lowest price per pound
Mathematics
1 answer:
lubasha [3.4K]3 years ago
8 0

Answer:

Company B

Step-by-step explanation:

Company A is offering 2.5 pounds of chocolate in $32.5 while Company B is offering 2.75 pounds of chocolate in the same price

Per pound of company A=32.5/2.5

Company A per pound=$13

Per pound of company B=32.5/2.75

B=$11.8

Hence company B is offering the lowest price per pound

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Oliver and Lenny started hiking a hill simultaneously from the bottom to the top. Oliver hiked at a speed of 5 km/h during the f
Papessa [141]

Answer:

<u>Oliver and Lenny reached the top of the hill at the same time</u>

<u>The proportion of time Oliver spent hiking to that of Lenny is 1:1</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Oliver's speed = 5 km/h during the first half, then decreased his speed to 4 km/h during the second half.

Lenny's speed = 4 km/h during the first half, then increased his speed to 5 km/h in the second half.

2. Who reached the top of the hill first? What is the proportion of time he spent hiking to that of his friend?

Let's assume the distance from the bottom to the top of the hill is 10 kilometers for calculating the time it will take Oliver and Lenny to reach the top of the hill:

Speed = Distance/Time

Time = Distance/Speed

Oliver = Time of hiking first 5 km + Time of hiking second 5 km

Lenny = Time of hiking first 5 km + Time of hiking second 5 km

Oliver = 5/5 + 5/4

Oliver = 1 + 5/4 = 2 1/4 hours

Lenny = 5/4 + 5/5

Lenny = 5/4 + 1 = 2 1/4 hours

<u>Oliver and Lenny reached the top of the hill at the same time</u>

<u>The proportion of time Oliver spent hiking to that of Lenny is 1:1</u>

3 0
2 years ago
The population of the United States was about 280 million in 2000 and about 310 million in 2010. What was the annual rate of cha
JulsSmile [24]

To find the annual rate of chnge, we have to use the following formula

\frac{P(2010)-P(2000)}{2010-2000}

P(2010) represents the population in the year 2010 and P(2000) represents the population in the year 2000 .

Substituting the values, we will get

\frac{310-280}{2010-2000} = \frac{30}{10} = 3 \ million \ per \ year

8 0
3 years ago
What is the slope of a line that is perpendicular to 3x+2y=14
djyliett [7]

Answer:

2/3

Step-by-step explanation:

7 0
3 years ago
The Controlled Substances Act of 1970 categorized drugs such as morphine and cocaine as Schedule ________ drugs. A. IV B. I C. I
Feliz [49]
I believe the answer is

C. II
8 0
2 years ago
How many ways can 6 people be chosen and arranged in straight line if there are 8 people to choose from? a. 48.b. 720.c. 20, 160
Ipatiy [6.2K]

Answer:

<h2>C. <em>20,160</em></h2>

Step-by-step explanation:

This question bothers on permutation since we are to select a some people out of a group of people and then arrange in a straight line. If r object are to be arranged in a straight line when selecting them from n pool of objects. This can be done in nPr number of ways.

nPr = n!/(n-r)!

Selection of 6 people out of 8 people can therefore be done in 8C6 number of ways.

8P6 = 8!/(8-6)!

8P6 = 8!/2!

8P6 = 8*7*6*5*4*3*2!/2!

8P6 = 8*7*6*5*4*3

8P6 = 56*360

8P6 = 20,160

<em>Hence this can be done in 20,160 number of ways</em>

5 0
3 years ago
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