Answer:
the 1st digit is in the 100s n its 1
step-by-step explanation:
3,589÷18 = 199.389
so the first digit of the quotient is in the 100s n its 1
(i think)
Step-by-step explanation:
Answer: √7 / 2 - 3/2
Step-by-step explanation:
√7-2x+5=8
=> -2x + √7 = 3
=> x = √7 / 2 - 3/2
Answer: 6 ≤ h ≤ 9
Step-by-step explanation:
Hi, since He charges $40 as a fixed rate for the first hour plus $20 for each additional hour, the cost of the tutoring service is equal to the fixed rate(40) plus, the product of the additional hours (h-1) and the cost per additional hour (20).
40+20(h-1)
40+20h-20
20+20h
Since a student can spend between $140 and $200, the previous expression must be greater o equal than 140, and less or equal than 200.
140≤20+20h≤200
Subtracting 20
140-20 ≤20-20+20h ≤200-20
120 ≤ 20h ≤ 180
Dividing by 20
120/20 ≤ 20h/20 ≤ 180/20
6 ≤ h ≤ 9
Answer:
Option D is incorrect
Step-by-step explanation: