3 years ago

I'm not sure can someone help me !!!

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

7 0

Turn it into transcript, It's upside down and I can't see it properly.

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Solve & Explain your Math thinking 12-7

Tom [10]

For this case we have the following subtraction:

$12-7$

We can rewrite the subtraction in an easier way.

We have then:

$12-7 = 12 - (5 + 2)$

Then, by doing associative property we have:

$12 - (5 + 2) = (12-2) - 5\\(12-2) - 5 = 10 - 5\\10 - 5 = 5$

Answer:

The value of the subtraction is given by:

$12-7 = 5$

4 0

3 years ago

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Moby sold half his toy car collection, and then bought 12 more cars the next day. He now has 48 toy cars. How many cars did he h

castortr0y [4]

Answer: 72 cars.

Step-by-step explanation:

Let be "x" the number of toys that Moby had to start with.

According to the information given in the exercise, Moby sold half his toy car collection. This can be represented with the following expression:

$\frac{1}{2}x$

Then he bought 12 more cars, giving a total amount of 48 toy cars.

Therefore, the equation that represents this situation is the equation shown below:

$x-\frac{1}{2}x+12=48$

Now you must solve for "x" in order to find its value.

You get that this is:

$\frac{1}{2}x+12=48\\\\\frac{1}{2}x=48-12\\\\\frac{1}{2}x=36\\\\x=(36)(2)\\\\x=72$

7 0

3 years ago

Simplify the expression 11x − (2x2 + 8x).

34kurt

$11x - (2x^2 + 8x)$

$11x-2x^2-8x$

$(11x-8x)-2x^2$

$3x-2x^2$

5 0

3 years ago

Mai conducted an experiment by flipping a fair coin 200 times. The coin landed heads up 110 times. Which statement about the coi

Alexandra [31]

The experimental probability of the coin landing heads up is 110/200 = 11/20.
The theoretical probability is 1/2

4 0

3 years ago

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Plssss help me, I’m so confusedddd! This will decide if I can go to my dream school!

Leona [35]

Answer:

the answer is -16, hope this helps, and hope you get into your dream school!

Step-by-step explanation:

none needed

7 0

3 years ago

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