Answer:
11 calls
Step-by-step explanation:
She has already spent 42 min. Also she wants to talk for 2 min per call. We can change calls on x. So, only 2x min for her calls left.
42 + 2x = 64
2x = 64 - 42
2x= 22
x=11
Answer: 11 calls
Answer:
15/32
Step-by-step explanation:
Answer:
its decreasing. .........
Answer:
-9/4 ÷ (-2/3)
Step-by-step explanation:
-(2 1/4) ➡ -9/4
-2/3 ➡ (again a reciprocal needed) -3/2 since we need the result to be positive both expression should remain negative so the answer is -9/4 ÷ -2/3
Answer:
its infinite
Step-by-step explanation:
Given equation is 2x+1=x−3
That is 2x−x=−3−1
⇒x=−4
Thus there is only one point on the number line that satisfies the equation x=−4, but on cartesian plane i.e. X-Y plane , there are infinite number of solutions as x=−4, and y can have any real value.
