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Levart [38]
2 years ago
7

Caritas 37 coins on nickels and dimes in his piggy bank the value of the coins is $3.10 write a system of equations define the v

ariables
Mathematics
1 answer:
stiv31 [10]2 years ago
7 0

Answer:

x is number of nickels

y is number of dimes

0.05x  + 0.10y = 3.10

x + y = 37

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If f(x) = 2x2 + 1 and g(x) = x2 - 7, find (f + g)(x).​
pishuonlain [190]

Answer:

(f+g)(x) = 3x^{2} - 6

Step-by-step explanation:

First, lets understand what (f+g)(x) means.

(f+g)(x) is when you are taking the values in the function f(x) and adding it to the values in the function g(x).

So, this is what the equation looks like when you substitute the functions in to (f+g)(x):

(f+g)(x) = (2x^{2} +1) + (x^{2}  -7)

Now, combine like terms and Simplify:

(f+g)(x) = 3x^{2} - 6

This is your final answer.

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3 years ago
Can someone please tell me what to do in this question im so confused
Sergeu [11.5K]
Im no expert but i think its
input: x,independent variable ,domain
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3 0
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Devon earns $35 per hour for a regular 40-hour work week. Sometimes, he works over 40 hours a week and earns "double time" for t
Evgesh-ka [11]

Answer:

Earnings = $1960

Step-by-step explanation:

The question is incomplete; however the missing part of the question asks his total earnings if he worked for 48 hours in a week

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Since extra charges is twice regular charges, we have:

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y = x + 1

Step-by-step explanation:

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