Answer:
x /\ y
1 /\ -4
2 /\ -5
3 /\ -6
4 /\ -7
... /\ ...
Step-by-step explanation:
Answer:
56 total
Step-by-step explanation:
Let the number of girls = x
Let the number of boys = 3x
x 1
=== = ==========
x + 28 3
Cross multiply
3x = x + 28 Subtract x from both sides
3x - x = 28 Combine
2x = 28 Divide by 2
x = 28/2
x = 14
Girls = 14
Boys = 14 + 28 = 42
Is the ratio 3 to 1?
42/14 = 3/1 Yes it does
Total number
14 + 42 = 56
Answer:
b = 69/2 mm
Step-by-step explanation:
Let h: height of triangle
Let b: base length
Writing the height in terms of the base length: h = 2b + 5 mm
We equate that to the given height: 74 mm = h = 2b + 5 mm.
Solving this for b, we subtract 5 mm from both sides, obtaining
69 mm = 2b.
Then b = 69/2 mm
20 points were scored.
Since 10% is 1/10 you can multiply his number by 10 to get the actual answer.
Answer:
option (b) is correct
inverse of function 
is 4x+3
Step-by-step explanation:
Given function
We have to find the inverse of given function.
Let f(x) = y then taking inverse both sides, we get
Substitute , x and f(x) in given equation, we get,
Now solve for 
, we get,
Thus, inverse of function is 4x+3
Thus, option (b) is correct.
