What is the LCM of 40 and 15?

Answers

Answer 1

Answer: $LCM\ is\ the\ least\ common\ number\ that\ is\ multiply\ of\ both:\n\n Factors\ of\ 40\n40:2\n20:2\n10:2\n5:5\n\n Factors\ of\ 15\n15:3\n5:5\n\n LCM(24,38)=2^3*3*5=120\n\n \textbf{LCM(40,15)=120}$

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Convert the mixed number to an improper fraction. 4 7/8

A.11/8

B.19/8

C.28/8

D.39/8

Answers

4 7/8=(4*8+7)/8=(32+7)/8=39/8 ⇒ D

$8*4+7=\boxed{ (39)/(8)}$

The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse? A. 13.23 centimeters B. 25 centimeters C. 5.92 centimeters D. 35 centimeters

Answers

$a;b-legs\nc-hyperotenuse\n\nPythagoras\ theorem:\ \ a^2+b^2=c^2\n\nsubstitute:\n\nc^2=15^2+20^2\n\nc^2=225+400\n\nc^2=625\n\nc=√(625)\n\nc=25\ (cm)\n\n\nAnswer:B$

The answer is B
15^2 + 20^2= 625
And 625 under square rout = 25

the lengths of the sides of a 6-sided polygon are in arithmetic sequence. the length of the shortest side is 3 meters/if thelength of the next longer side is 5 meteres, what is the length of the longest side?

Answers

8 meters is the answer

Write the equivalent fractions of 2/5

Answers

There are an infinite number of them.
Here are a few:

4/10
6/15
8/20
10/25
12/30
14/35
16/40
18/45
20/50

Also 318/795 .

NEED ASAP..Will mark you brainliest...Please match the words to the definition...I have given it a try, but something I am matching is wrong

Answers

Answer:

gcfdbea

Step-by-step explanation:

I believe these are the correct answers.

The measure of one angle of an octagon is two times smaller that of the other seven angles. What is the measure of each angle?pls help the answer is (not 77 degrees and 144 degrees)