Write two ways to make 15

Answers

Answer 1

Answer: 5 x 3 = 15
10 + 5= 15

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What is the greatest common factor of 18/54

Answers

The greatest common factor of 18 and 54 is 18
One way to determine the greatest common factor is to find all thefactors of the numbers and compare them.
The factors of 18 are 1, 2, 3, 6, 9, and 18.
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.
The common factors are 1, 2, 3, 6, 9, and 18. Therefore, thegreatest common factor is 18.

The greatest common factor can also be a calculated by identifyingthe common prime factors and multiplying them together.
The prime factors of 18 are 2, 3, and 3.
The prime factors of 54 are 2, 3, 3, and 3.
The prime factors in common are 2, 3, and 3, so the greatest commonfactor is 2 x 3 x 3 = 18.
hope this help

Please help me I want to pull up my grade.

Answers

B c and d im sure hope this helps

Determine which of the cross section shapes are possible for a right rectangular pyramid,where the length and width of the base are not equal.Select all that apply
A)Circle
B)Hexagon
C)rectangle
D)Square
E)Trapezoid
F)Triangle

Answers

C)Rectangle, E)Trapezoid, F)Triangle
These shapes' cross sections have the length and width of their bases which are not equal

I need help asap plzzzzzzz

Answers

Okay, the two values you've got is 2 2/3 and 1 1/4.

Convert both of those values into improper fractions, which is 2 2/3 = 8/3 and
1 1/4 = 5/4

Now, subtract those two values: 8/3 - 5/4, find the lowest common denominator, which is 3*4 = 12...

8/3 - 5/4 = (8*4 - 5*3)/12 = (32 - 15)/12 = 17/12 = 1 5/12

the correct answer is c because if you put them mixed fractions and than dived buy 3/3 and 4/4 than you will get C

Im stuck on question 43

Answers

Ok, first things first... No, she did not do the problem correctly. This question has everything to do with order of operations which says the parentheses are the first thing to be done, followed by exponents, multiplication, division, addition, and subtraction... PEMDAS. Now, technically, her first operation that she performed was incorrect because she did the exponent first, but this really doesn't affect the outcome, so we'll overlook it for now. Her next step was to go to the parentheses, but within the parentheses, she performed the wrong operation first... She should have multiplied 2 and 3, then added 4. Instead, she committed the fatal flaw in her math and added 4 and 2 then multiplied 3. As soon as that happened, the rest of the problem was incorrect because now she's adding and subtracting the wrong number.

The notes you made yourself on the side of the problem were exactly correct and if you followed them, you would have had the correct answer. The steps should have progressed like this...

2^3 + (4 + 2 * 3) -1 =
2^3 + (4 + 6) -1=
2^3 + 10 -1=
8 + 10 - 1=
18 - 1 = 17

Of course as you get better at solving this type of equation, you can combine steps. I wrote down each individual step so you could see more clearly what was going on. Have a good night!

The answer is no. Allsion did not follow the PEMDAS rule. She added 4+2 before she multipled 2 and 3 together in the parenthesis. This is how you get the real answer.
2^3 + (4 + 2 * 3) -1
8 + (4 + 6) -1
8 + (10) -1
18 - 1
17
17 is the final answer

A delivery man starts work at 21:30 and works for 8 12 hours.
At what time does he finish? Give your answer in 24 hour
format.

Answers

The time at which man starts its work=21:30
Time at which he finishes his work =21:30+8:12=29:42
Means at the next day he finishes his work .
And time is29:42-24:00=5:42

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