Answer:
6q + 2
Step-by-step explanation:
4q + 2 % = 6q
3 - 1 = 2
6q + 2
Answer:
-13
Step-by-step explanation:
sum of them=-33
the average is -3, thus the middle integer is -3
counting back 5 times, by twos, you get -13
we can confirm this by counting forwards, and getting 10
10=-13=-3
Hello,
√52-√13+√117=√(4*13)-√13+√(9*13)
=√13*(2-1+3)=4√13
Answer A
Answer:
Sarah bought 7 coach tickets and 4 first class tickets.
Step-by-step explanation:
From the information provided, you can write the following equations:
x+y=11 (1)
240x+1100y=6080 (2), where:
x is the number of coach tickets
y is the number of first class tickets
In order to find the value of x and y, first you have to solve for x in (1):
x=11-y (3)
Now, you have to replace (3) in (2) and solve for y:
240(11-y)+1100y=6080
2640-240y+1100y=6080
860y=6080-2640
860y=3440
y=3440/860
y=4
Finally, you can replace the value of y in (3) to find the value of x:
x=11-y
x=11-4
x=7
According to this, the answer is that Sarah bought 7 coach tickets and 4 first class tickets.