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Marrrta [24]
3 years ago
11

Riaz wants to use the number sentence shown to solve a problem.

Mathematics
2 answers:
aleksklad [387]3 years ago
8 0
The answer is B. There are certain keywords that can show you what the sign will be. 

<span>"A pet store has 12 cats. If 3 of them are sold, how many cats have not been sold?" That is basically asking you to subtracted. Can you see how? "How many cats have NOT been sold." That's the key right there. so it's obviously not that one. 

"</span><span>A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?" That is asking you to divide 12 keys into key chains that can hold 3 keys. Did you take </span>the hint? 

Answer C is obvious because the phrase "In all" is addition. 

And the answer isn't D either. Does this make sense? 
BARSIC [14]3 years ago
4 0
<span>B) A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?</span>
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5

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Apply the distributive property to create an equivalent expression.<br> −9⋅(5j+k)
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Step-by-step explanation:

step one: *multiply the negative 9 with the 5j.

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You spend 8 hours each weekday at school. Write the portion of a weekday spent a school as a fraction, decimal, and a percent. W
tankabanditka [31]

Answer: 32/56, 0.57, 57% rounded = 60%

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3 0
3 years ago
Paul wanted to bring his family to the Children’s Museum. There was an exhibit with carnival rides. The tickets for each ride we
Nostrana [21]

We want to define and solve a linear equation to model the given case.

The answers are:

a) x = number of tickets, y = total cost.

b) y = $1.35*x + $6.35

We know that:

The tickets for each ride were $1.35 per ticket.

Paul purchased 30 tickets

He spent a total of $46.85 (on tickets and admission)

The cost for the 30 tickets is:

30*$1.35 = $40.50

a) Now we can define two variables:

y = total cost

x = number of tickets

b) the linear equation would be:

y = $1.35*x + P

Where P is the price of admission.

And we know that the total cost for 30 tickets is $46.85, then we have:

$46.85 = $40.50 + P

$46.85 - $40.50 = P = $6.35

So the admission price is $6.35

This means that the linear equation is:

y = $1.35*x + $6.35

c) Brief explanation, we have the variable y that represents the total cost, it is equal to the admission price (which we found) plus $1.35 times the number of tickets bought (x).

If you want to learn more, you can read:

brainly.com/question/13738061

3 0
3 years ago
What is the solution set of the following equation?
Maslowich

-8x + x + 15 = -7x + 12\\\\-8x+x+7x=12-15\\\\0=-3\\\\x\in\emptyset

8 0
3 years ago
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