2 years ago

Draw a Picture Elise paints 12 stars on a

Mathematics

1 answer:

Setler [38]2 years ago

6 0

This would be it i guess??

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What is The answer to this equation -9•(5j+k)

vlada-n [284]

Answer:

-45j -9k

Step-by-step explanation:

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2 years ago

3/4+(1/3÷1/6)-(-1/2)=?

Ugo [173]

Answer:

3 1/4 or 3.25

Step-by-step explanation:

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2 years ago

How to perform aerial math for following:<br><br> 5.1 x 3.5 X 0.5+9.4

iris [78.8K]

I could be wrong, but I would say it's 18.325

4 0

2 years ago

An ounce is equal to about 28 g. If 1 g of soil contains 2.5 billion bacteria, how many bacteria are in 1 oz of soil?

Nimfa-mama [501]

Answer:

About 700 billion bacteria

Step-by-step explanation:

Given

$1oz \approx 28g$

$1g = 25\ billion\ bacteria$

Required

Number of bacteria in 1 oz

$1g = 25\ billion\ bacteria$

Multiply both sides by 28

$28 * 1g = 25\ billion\ bacteria * 28$

$28g = 700\ billion\ bacteria$

Recall that

$1oz \approx 28g$

This means:

$1oz \approx 700\ billion\ bacteria$

5 0

2 years ago

One crew can seal a parking lot in 12 hours and another in 15 hours. how long will it take to seal the parking lot if the two cr

MakcuM [25]

This is a typical work problem in algebra. The approach to this is using the equation: Rt = 1, where R is the rate per person working, t is the amount of time worked by an individual. All their rates must equal to 1. The solution is as follows:

12/x + 15/x = 1
Solving for x,
x = 27 hours

So, if they work together, they can finish the work in 27 hours.

6 0

3 years ago