Answer:
Hi! The correct answer is x=1/4+y/2!
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation
Answer:
20 students
Step-by-step explanation:
Weight lifting:
8% = 0.08
250(0.08) = 20
77(7) = 539, the total points of all her tests
539 - 18 + 81 = correct total points = 602
602/7 = 86 which is the new average
Answer:
7
Step-by-step explanation:
7 is the whole number and 1/3 is a fraction
Answer:
The statement is true
see the explanation
Step-by-step explanation:
we have the proportion
we know that
To solve the proportion multiply in cross
so
therefore
The statement is true
