Answer:
x +(2x + 3) = 33
Step-by-step explanation:
two equations can be derived from the question
c = 3 + 2x equation 1
c + x = 33 equation 2
where :
c = cappuccinos
x = lattes
make c the subject of the formula in equation 2
c = 33 - x equation 3
equate 3 and 1
x +(2x + 3) = 33
Answer:
a 15
Step-by-step explanation:
two negitive numbers equal a positive number :) ur welcomee
add the mileage 51+69 = 120 km
add the times 4+5=9 hours
now divide the two
120/9 = 13.3 km per hour average speed
