Answer:
Point Form:
(−3,−1)
Equation Form:
x=−3,y=−1
Step-by-step explanation:
Answer:
Psychology textbooks = 98 and physics textbooks = 294
Step-by-step explanation:
Let there are x psychology textbooks sold.
No of physics textbooks sold = 3x
ATQ,
A textbook store sold a combined total of 392 physics and psychology textbooks in a week.
x + 3x = 392
4x = 392
x = 98
It means there are 98 psychology textbooks sold and 3x = 3(98) = 294 physics textbooks sold.
Answer:
Some of the 50 students should have been assigned to a control group that used the in-person course
Step-by-step explanation: