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Andreas93 [3]
3 years ago
10

Yesterday, Kevin had m baseball cards. Today, he gave 9 away. Using m, write an expression for the number of cards Kevin left

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0

Answer:

m-9

Step-by-step explanation:

m represents how much cards he used to have he gave away 9 so u subtract

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4 0
3 years ago
Last year my family decided to put on a play It was A Great success . 200 people attended and we earned a total of 800 . If adul
nata0808 [166]

Answer:

200 adults

Step-by-step explanation:

We can set-up a system of equations to find the number of adults. We know children and adults attended. We will let c be the number of children and a be the number of adults. Since 200 people attended, then c+a=200.

We also know they made $800 and adult tickets cost $4 and child tickets cost $2. We can write 2c+4a=800.

We will solve by substituting one equation into the other. We start by solving the first equation for c. c+a=200 becomes c=200-a.

Now we substitute c=200-a into 2c+4a=800. Simplify and isolate the variable a.

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This means that 200 adults attended and 0 children attended.

8 0
4 years ago
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