Find the lcm of 2,3,7 and tell me how u got ur answerif its CORRECT with ur reasoning ill give brainlest

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

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Alejando read 4 pages in a book in 6 minutes. How long would you expect him to read 6 pages at this rate

Answers

Answer:

So simple

4 pages = 6 min

1 page = 6/4 min

6 pages = 6 × 6/4

6 pages = 9 min

he would read 6 pages in 9 minutes

What angle does half a pie form

Answers

If you mean half a circle, then I’m pretty sure the angle would be 180 degrees.
I hope this helps!

Keith has a bag of Skittles. He is trying to get Jashawn to figer out how many Skittles are in his bag. There are 16 red. 25% of the bag is orange. 1/8 of the skittles are yellow. Tge rest of the skittles are green.If 2/5 of the bag is red,how many skittles are in the bag? How many skittles are orange? How many of the skittles are green?

Answers

Answer:

Total number of skittles in bag are 40

There are 10 orange skittles.

There are are 9 green skittles.

Step-by-step explanation:

Suppose there are "x" number of skittles in the bag.

Given that 2/5 of x = 16

Solving above equations gives , x = 40

That means total numbers of skittles are 40.

2/5 of 40 = 16 red skittles.

25 % of 40 = 10 orange skittles

1/8 of 40 = 5 yellow skittles

40-16-10-5 = 9 green skittles.

What is the value of (4-1/4) ÷ (2-1/2)?

Answers

Answer:

2.5

Step-by-step explanation:

The value of (4-1/4) divided by (2-1/2) is 2.5

You welcome, don't forget to give me the points...

Boris buys candy that costs $7 per pound. He will spend at least $63 on candy. What are the possible numbers of pounds he will buy?

Answers

Answer:

Anything above 9

Step-by-step explanation:

63/7=9

On two investments totaling $6,000, Kevin lost 3% on one and earned 6% on the other. If his net annual receipts were $288, how much was each investment?

Answers

ANSWER:

$ 800 was invested in the account at 3%

$5200 was invested in the account at 6%

STEP-BY-STEP EXPLANATION:

We can establish the following system of equations thanks to the help of the statement:

Let x represent the amount invested in the investment that lost value

Let y represent the amount invested in the investment that gained

value.

$\begin{gathered} x+y=6000\rightarrow y=6000-x\text{ (1)} \n -0.03x+0.06y=288\text{ (2)} \end{gathered}$

We replace equation (1) in (2) and solve for x:

$\begin{gathered} -0.03x+0.06\cdot(6000-x)=288 \n -0.03x+360-0.06x=288 \n -0.09x=288-360 \n x=(-72)/(-0.09) \n x=800 \n \text{ Now, for y replacing in (1)} \n y=6000-800=5200 \end{gathered}$

Therefore, $ 800 was invested in the account the lost value, and $ 5200 was invested in the account that gained value.

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The time needed for all college students to complete a certain paper-and-pencil maze follows a normal distribution with a population mean of 30 seconds and a population standard deviation of 3 seconds. You wish to see if the mean time μ (where μ stands for population mean) is changed by vigorous exercise, so you have a group of nine college students exercise vigorously for 30 minutes and then complete the maze. It takes them an sample average of 31.2 seconds to complete the maze. Use this information to test the hypotheses: H0: μ = 30, Ha: ≠30 at the significance level of 0.01. You conclude:a) There is not enough evidence to support the claim.b) There is enough evidence to support the claim.