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lozanna [386]
3 years ago
15

Identify the constant(s) and coefficient(s) in the following expression: 3x2+9+X-X4​

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

Constants are 3, 2, and 9 because they are alone without a variable. 4 Would be a coefficient because it has a variable.

Step-by-step explanation:

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There are 52 birds and acts in the store. For the same animals Kia counts 138 legs. How many birds and cats are in the pet store
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Let's represent birds by the letter x and cats by the letter y. Since birds have 2 legs, and cats have 4, we can express this as:
138 = 2x + 4y
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We can solve by substitution. Let's solve for x in the second equation:
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Replace every x in the first equation by that:
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138 = 104-2y+4y
138 = 104 + 2y
34 = 2y
y = 17

Now, plug that in for y in second equation and solve for x:
52 = x + 17
x = 35

Since x was the number of birds and y was the number of cats in the store, there are 35 birds and 17 cats in the store.
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