Solve the problem.There are four people in Ethan's family, one adult and three children aged 4, 8, and 11. The family decided to join an aquatic center. Adult memberships are $60 per adult and children's memberships are $20 per child if the child is 5 years old or younger. How much will the family have to pay in membership fees?
A. $200
B. $240
C. $160
D. $120
Answer: A
Mathematics
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Solve by the substitution method. If the system is inconsistent or dependent, say so.5x + 4y = 253x + 2y = 13
A. (1, 6) B. (0, 6) C. (1, 5) D. No solution
Mathematics
Solve the equation.
= 4
A. 8 B. 4 C. -16 D. 16
Mathematics
Represent the real-word quantity with a signed number.Sam incurred a net loss of $274 playing blackjack in Las Vegas.
A. -274 B. 274
Mathematics
Find an equivalent equation in rectangular coordinates.r(1 - 2 cos ?) = 1
A. x2 + y2 = 2 + x
B. = 1 + 2x
C. = 2 + x
D. x2 + y2 = 1 + 2x
Mathematics