What is the unit rate for 14lb for $2.99

Answers

Answer 1
Answer: 2.99 / 14 = 0.21

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Kelly bought 4 7/8 pounds of apples and 2 3/8 pounds of oranges. How many pounds of fruit did she buy altogether?

Answers

4+2=6
3/8+7/8=1 2/8+6= 
7 2/8
hope that helped! :)

Find the product. Write your answer in exponential form. 3^9 • 3^7

Answers

Answer:

The product is 3^16

Step-by-step explanation:

When you multiply two numbers with the same base, you simply add the exponents.

9 + 7 = 16

How to draw a model to prove that 3/10 is equal to 9/30

Answers

Well 3 x 3 = 9 and 10 x 3 = 30 and yes they are equivalent and it is valid
You show that both numbers can be multiplied by there and that gives you 9/30

explain why it is important to know if a time is in a.m. or p.m. when figuring out how much time has elapsed.

Answers

It is important because if you just so happen to go to sleep at 5:00 Pm and you wake up at 5:30 Am youd think only 30 minutes pass when in reality 12 hours and 30 minutes passed
it has to be pm I'm if it says for an example 5:00am you have to use pm now

A park charges $7.50 per hour to rent a bike. The table shows the relationship between the number of hours, h, and the total cost, c. With the information in the table, which expression can be used to find c?

Answers

C=7.50h. C represents cost and h represents the amount of hours. The cost per hour is 7.50.

Answer:

let n be no of hours

7.5x n = c

Step-by-step explanation:

A circular Petri dish has a diameter of 10 centimeters. If the dish contains 2.450 bacteria, what is thepopulation density of bacteria in the dish?
(1) 31 bacteria per square centimeter
(2) 42 bacteria per square
centimeter
(3) 48 bacteria per square centimeter
(4) 51 bacteria per square centimeter​

Answers

Answer:  31 bacteria per square centimiter.

Step-by-step explanation:

The correct number of bacteria in the question is 2,450.

Hi, to answer this question we have to apply the next formula:

Area of a circle = π x (diameter/2) ^2

Replacing with the values given:

A = π x (10/2) ^2

A = π x (5) ^2

A = π x 25 = 78.54 cm2

Next, we have to divide the number of bacteria (2,450) by the area of the dish  

2450 / 78.54 = 31.19 = 31 bacteria per square centimiter.

Feel free to ask for more if needed or if you did not understand something.