Answer:
0.80A + 0.92B = 63 .....1
A + B = 75 ......2
Step-by-step explanation:
Let A and B represent the total possible score in part A and B respectively;
Analysing each sentence of the question;
Sam scored 80% on Part A of a math test and 92% on part B of the math test. His total mark on the test was 63
80% of A + 92% of B = 63
0.80A + 0.92B = 63 ......1
The total possible marks for the test was 75;
A + B = 75 .....2
So, equation 1 and 2 provides a set of simultaneous equations that can be used to represent and solve the situation.
Solving the simultaneous equations, we will arrive at;
Part A = 50
Part B = 25
Answer:
The slope is a) -5.
Step-by-step explanation:
(-6, -4)
(-5, -9)
the difference in slope is 
Answer:
63.38
Step-by-step explanation:
(49.90)(20%)(6%)
20%= $9.98
49.90+9.98 =59.80
(59.80)(6%)
6%= $3.58
59.80+3.58=63.38
Answer:
Scrieți fracțile ordinare
