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docker41 [41]
3 years ago
5

Will give brainliest and more. 30 points. A cell phone company charges $40 plus $15 per line each month. Jake must spend less th

an $115 on his family's cell phone bill each month. How many cell phones can his family have?
Mathematics
2 answers:
amid [387]3 years ago
8 0

Answer:

the answer is 5 lines

Step-by-step explanation:

the equation would be

y= 40 + 15x

in this case y is $115

so that leaves you with:

115= 40 + 15x

115- 40 = 15x

75 = 15x

75/15 = 15/15x

5= x

kolbaska11 [484]3 years ago
4 0

they can have 5 cell phones.

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If you would like to find the discriminant of the quadratic equation 0 = 2x^2 + 3x - 5, you can do this using the following steps:

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Sliva [168]

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Just try to remember PEMDAS.

Parenthesis, Exponent, Multiplication/Division, Addition/Subtraction.

This is the order we follow when going about expressions with many operations.

Let's start with the parenthesis part. Notice that there is an exponent beside the parenthesis enclosing the fraction. Here we use the quotient to a power rule. We distribute the exponent to the numerator and the denominator.

=(\frac{3}{5})^{2} + 4 \times 3 - 2\\

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=12.36 - 2

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