Mathematics, 05.01.2021 23:50 shikiaanthony
Solve the following system of equations by substitution and select the correct answer below:
4x - y = 28
8x - 4y = 24 (5 points)
A. x=1 , y=4
B. x=-1, y=4
C. x=1, y=-4
D. x=-1, y=-4
Answers: 3
Mathematics, 21.06.2019 17:20
7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?
Answers: 1
Mathematics, 21.06.2019 18:40
Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.
Answers: 3
Mathematics, 21.06.2019 19:30
Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.
Answers: 1
Solve the following system of equations by substitution and select the correct answer below:
4x - y...
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