3 years ago

What is the least common multiple of 4 and 10?

Mathematics

1 answer:

Vilka [71]3 years ago

7 0

Answer:

I don't remember math but I think it's 20.

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Solve this system of equations:

Solnce55 [7]

Answer:

y=-3 x=1 (1,-3)

Step-by-step explanation:

y=x-4

y=6x-9

y+4=x

y+9=6x

difference = 5

x+5=6x

x=1

y=-3

1,-3

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AD Length: 31.5 degrees

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Write the slope intercept form of the equation of each line given the slope and y-intercept slope=-7/5 y-intercept = -3

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Which statement is true about the equation z − z + 3 = z + 5? It has no solution. It has one solution. It has two solutions. It

mina [271]

Z - z + 3 = z + 5
0 + 3 = z + 5
3 = z + 5
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3 years ago

State the property that justifies the statement: If 4x + 9 = 15 and X=2y + 1,

GREYUIT [131]

Answer:

Substitution property of equality

Step-by-step explanation:

Given

$4x + 9 = 15$ and $x = 2y + 1$

Then

$4(2y + 1) + 9 = 15$

Required

State the property

From the list of options, (d) answers the question.

This is so because:

Substitution property of equality states that

If $a = b$ then $b = a$

In other words, both can replace one another.

So if $x = 2y + 1$ , then 2y + 1 can be substituted for x in $4x + 9 = 15$

So:

$4x + 9 = 15$ becomes

$4(2y + 1) + 9 = 15$

<em>Hence, it is substitution property of equality</em>

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3 years ago