Answer:
7/11
Step-by-step explanation:
Let d represent the original denominator. Then the original numerator is ...
2d-15
The new numerator is ...
(2d-15) +5
and the new denominator is ...
d+7
The ratio of these is 2/3, so we have ...
The original fraction is 7/11.
Answer: 40
Step-by-step explanation:
Answer:D. -4
Step-by-step explanation:
If the relationship is proportional, what is the missing value from the table?
X Y
-3 -1
-12 ?
-30 -10
Answer:
Multiple choice questions = 5
True questions = 15
Step-by-step explanation:
Given that:
Total number of questions = 20
Total worth of point = 100
Multiple choice questions (M) = 11 points each
True false questions (T) = 3 points each
Hence,
M + T= 20 ____(1)
11M + 3T = 100 ____(2)
M = 20 - T
Using the relation in (2)
11(20 - T) + 3T= 100
220 - 11T + 3T= 100
220 - 8T = 100
-8Tf = 100 - 220
-8T = - 120
T = 120/8
T = 15
Mc = 20 - 15
Mc = 5
Multiple choice questions = 5
True false questions = 15
B is considered as a variable as in like a+b= c
