Answer:
9/25
Step-by-step explanation:
this is a two sets problem first you find x and subtract it's from the numbers given that is 15 and 16 and when you find them you will get the x which is the number that had both of the cat and the dog and that number is what you're going to use to divide a 25 so that's how I got the 9 / 25
Answer:
f(x) = -2x-15
Step-by-step explanation:
f(x) = -2(x+5)-5 = -2x-15
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.
Answer:
the area is C. 39
Step-by-step explanation: If you split them into there own shapes and add them at the end.
2 x 6 = 12
3 x 5 = 15
3 x 4 = 12
12 + 12 = 24
24 + 15 = 39
hope this makes sense
Answer:
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Step-by-step explanation: