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2 years ago

It 3x - 2 = 7, then 3x = 9 is an example of the ?

Mathematics

1 answer:

vova2212 [387]2 years ago

3 0

Answer:

Addition Property of Equality

Step-by-step explanation:

So we had:

$3x-2=7$

And then we got:

$3x=9$

We did this by adding 2 to both sides of the equation. When we added 2, the left side cancelled and the right side equated to 9:

$(3x-2)+2=(7)+2\\3x=9$

Since we added 2 to both sides, this is an example of the addition property of equality.

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2 years ago

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Vitek1552 [10]

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2 years ago

Suppose Kalvin spins the pointer 64 times. Based on your experiment, how many times can you expect the pointer to land on 9:00,

Brrunno [24]

Answer:

16 times out of 64

Step-by-step explanation:

So, I could be wrong, but basically:

9, 10, and 11 are only 3 of the 12 possible outcomes that could happen.

3 out of 12 is 1/4.

What this means is that for every 4 times he spins the pointer, he can expect to get 9, 10, or 10 once.

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1/4 of 64 is 16.

4 0

3 years ago

-5/6(8+5b) = 75+5/3 b

Viktor [21]

Answer:

b = - 14

Step-by-step explanation:

Given

- $\frac{5}{6}$ (8 + 5b) = 75 + $\frac{5}{3}$ b

Multiply through by 6 ( the LCM of 6 and 3 ) to clear the fractions

- 5(8 + 5b) = 450 + 10b ← distribute left side

- 40 - 25b = 450 + 10b ( subtract 10b from both sides )

- 40 - 35b = 450 ( add 40 to both sides )

- 35b = 490 ( divide both sides by - 35 )

b = - 14

6 0

2 years ago

Read 2 more answers

i need help with math my question is i hope this question doesnt get deleted so my question is which of the following numbers is

DENIUS [597]

Any number that ends with 0 or 5 is divisible by 5. If it ends with any other numbers such as 1 2, 3, 4, ,6, 7, 8, 9 then it is not divisible by 5. If a number is divisible by it means that the number can be divided by 5.

5, 10, 15, 20, 25, 1234567890, 9876543210, etc. are going to be divisible by 5 because they end or a 0.

So, look through your given options. Which answer choice has a 0 or a 5 at the end of the number? That's your answer. :)

Hope that helped. (:

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3 years ago

Read 2 more answers