Answer: The test contains 10 three-point questions and 14 five-point questions.
Step-by-step explanation:
Let x represent the number of 3-point questions.
Let y represent the number of 5-point questions.
The maths test consists of 24 questions. This means that
x + y = 24
Each question is worth either 3 points or 5 and the test is worth 100 points. This means that
3x + 5y = 100 - - - - - - - - - - -1
Substituting x = 24 - y into equation 1, it becomes
3(24 - y) + 5y = 100
72 - 3y + 5y = 100
- 3y + 5y = 100 - 72
2y = 28
y = 28/2 = 14
Substituting y = 14 into x = 24 - y , it becomes
x = 24 - 14 = 10
Answer:
x = 3
Step-by-step explanation:
4 + 12.5 > 11x - 3.5 - 2x
16.5 = 5.5x
16.5/5.5 = x
Answer:44 ft
Step-by-step explanation:
P=2(l+w)
P=2(14+8)
P=2(22)
P=44
Answer:
Since
, you have the following arrangements.
Optional:
(and it's mirror version
, if you want to consider a long strip of bottles a rectangle. Technically it is, but it's open to interpretation.
and it's mirror
;
and it's mirror
;
Optional:
. Since a square is a rectangle with extra limitations.
the fraction that is equivalent to 4/6 is 2/3