Answer:
45
Step-by-step explanation:
(3)(7)−(6)(−4)
=21−(6)(−4)
=21−(−24)
=45
Answer:
a. the order processing fee changed to $ 15 and each bottle charge changed to 115%
b. the equation of cost will be changed to : (1.2 x 1.15) b + 15 = 1.38b + 15
Step-by-step explanation:
a. the order processing fee changed to $ 15 and each bottle charge changed to 115%
b. the equation of cost will be changed to : (1.2 x 1.15) b + 15 = 1.38b + 15
* this equation limited to a single order with b bottles
45 adult tickets were sold.
adult tickets = a
childrens tickets = b
a + b = 65
6a + 3.5b = 340
Subtract a from the equation on top to get b = 65 - a
Substitute into the second equation 6a + 3.5(65 - a) = 340
Simplify to make 6a + 227.5 - 3.5a = 340
6a - 3.5a = 340 - 227.5
Combine like terms so that 2.5a = 112.5
Divide both sides by 2.5 to isolate the variable a
Your final answer is a = 45
Okay. 60 equals twice the number added to itself. That would be 30, because 60 is twice of 30 and 30 added to itself is 60. The number is 30.
Answer:
x+11-14
Step-by-step explanation:
The temperature rose by 11 and fell by 14 so you add 11 and subtract 14 from the original number.
