Answer:
3x + 1y = $163
2x + 3y =$174
Step-by-step explanation:
Adult tickets to space amusement park cost x dollars children’s tickets cost y dollars.
Henson family bought 3 adults and 1 child's tickets for $163
x + y = 163
3x + 1y = 163
The Garcia family bought 2 adults and 3 child’s ticket for $174.
x + y = $174
2x + 3y = $174
Therefore the equations representing both families cost are
Henson family
3x + 1y = $163
Garcia family
2x + 3y = $174
A = 2LW + 2LH + 2WH....subtract 2LH from both sides
A - 2LH = 2LW + 2WH...factor out w on the left side
A - 2LH = W(2L + 2H) ....divide both sides by (2L + 2H)
(A - 2LH) / (2L + 2H) = W
Answer: y = 6, x = 5
Step-by-step explanation:
3x + 7y = 57 −6x + 2y = −18
2*(3x + 7y = 57)−6x + 2y = −186x+14y=114−6x+2y=−1816y=96y = 6
3x + 7(6) = 57 ; 3 x = 57 – 42 ; 3x = 15 ; x = 5
CHECK:−6(5) + 2(6) = −18 ; -30 + 12 = - 18 ; -18 -= -18
CORRECT! Solution Set: y = 6, x = 5
Given the number of contestant in each round:
X 1 2 3 4 5
F(x) 243 81 27 9 3
Rate of change can be calculated using y2-y1/x2-x1 formula. From
rounds 1 to 4 the rate of change are
-162, -54, -18. And the average of it is -78 and it
represents the average rate at which the number of contestants changed from the
first round to the fourth round.
Answer:
The answer is 4:52
Step-by-step explanation:
Because each type of cards has four pairs
