Mathematics, 18.12.2019 16:31 Heyitsbrandi
Achild has a piggy bank that contains only quarters and dimes. altogether, there are 27 coins in the bank and the total value of the coins is $4.50. how many quarters and how many dimes are in the piggy bank?
a. write a system of linear equations based on the description. use x to represent the number of quarters and y to represent the number of dimes.
b. solve the system using the elimination method. show all the steps leading to your answer.
c. write 1-2 sentences to explain what the solution means for this situation.
Answers: 2
Mathematics, 21.06.2019 19:30
Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .
Answers: 1
Mathematics, 22.06.2019 04:40
The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.
Answers: 1
Mathematics, 22.06.2019 05:00
The distance a bicycle travels with each turn of its wheels is about 3 1/7 times the tire diameter. the tires on mike’s bicycle have a diameter of 24 1/2 inches. how far does it travel with each turn of the wheels?
Answers: 2
Achild has a piggy bank that contains only quarters and dimes. altogether, there are 27 coins in the...
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