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dedylja [7]
3 years ago
5

What is the lowest common multiple (LCM) of 8, 2 and 5?

Mathematics
2 answers:
aivan3 [116]3 years ago
8 0

Answer:

40

Step-by-step explanation:

Using the method of prime factors

8 = 2 × 2 × 2 = 2³

2 = 2

5 = 5

Then LCM = 2³ × 5 = 8 × 5 = 40

olga2289 [7]3 years ago
8 0

Answer:

40

Step-by-step explanation:

The goal of LCM is to get the least common number that can divide any of the numbers given without turning them into fractions until all of them are divided to 1.

The least number that can divide any of the numbers is 2, dividing through we remain with 8/2=4, 2/2=1, and 5. Notice how the 5 remains the same, since dividing it by 2 will turn it into a fraction

Divide through by 2 again, we get 4/2=2, 1, and 5

Divide through by 2 yet again, we get 2/2=1, 1, and 5

Divide through by 5, we get 1, 1, and 1

The LCM is now multiplications of all the least numbers used above= 2*2*2*5=40

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4 0
3 years ago
Read 2 more answers
Willie changes the quadratic function f(x)=x2?6x+14 to vertex form f(x)=a(x?h)2+k. If Willie does this correctly, what is the va
andrew11 [14]

Answer:

The value of k is 5.

Step-by-step explanation:

Since we know we can convert function's quadratic form to vertex form by completing the square.

f(x)=x2?6x+14

We will add and subtract 9 to our equation in order to complete the square.

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Upon completing the square and combining like terms we will get,

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3 years ago
(100 points) Give a step by step explanation on how you solved this problem
Lina20 [59]
Use substitution
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3x + 3 = x - 1
2x + 3 = -1
2x = -4, divide by 2
x = -2
Now plug x value into any of the equation to find y value
y = 3(-2) + 3
y = -6 + 3, y = -3

Solution: x = -2, y = -3
4 0
3 years ago
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