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Sonbull [250]
3 years ago
13

10a÷2a please show working out or write an explanation thankyou

Mathematics
1 answer:
Tasya [4]3 years ago
4 0
A=5

you can divide 10a/2a because they have the same denominator (a).
because they have the same denominator you can look at it as: 10/2=5
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Expanded Exponential Form:

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Answer:

The t-shirt shop sold 21 long sleeve shirts and 17 short sleeve shirts.

Step-by-step explanation:

To solve this problem, we should create a system of equations.  Let's let short sleeve t-shirts be represented by the variable s and long sleeve t-shirts be represented by the variable l.  

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We can make another equation with the prices of the shirts.  If we take each type of shirt and multiply each price by the number sold and add them together, we should get the shop's total profits.  Represented as an equation, this is: 10s + 15l = 485.

Now that we have two equations, we should try to solve the system.  In this case, it is easiest to use substitution, so we are going to rewrite the first equation in terms of one variable.

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If we substitute this equivalent value for the variable s into the second equation, we get:

10s + 15l = 485

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Now we have an equation that only has one variable, so we can simplify both sides and then isolate the variable.

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Now, we can substitute this value for l back into the first equation to solve for the variable s.

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Therefore, the t-shirt shop sold 21 long sleeve shirts and 17 short sleeve shirts.

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3 years ago
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