All cell phone plans from mobileusa require an additional $10/month data fee on top of the base plan price. lindsay has the $39.99/month base cell phone plan from mobileusa. conjecture: lindsay pays at least $49.99/month for her cell phone. use deductive reasoning to verify the conjecture, or provide a counterexample if the conjecture is false. a. true; law of detachment b. false; lindsay does not have a data fee c. false; lindsay is not a mobileusa customer d. false; not all mobileusa customers have a data fee

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

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step-by-step explanation: