Answer:
x-9 = 9 x-9 = -9
Step-by-step explanation:
(x - 9)^2 = 81
Take the square root of both sides
sqrt((x - 9)^2) = ±sqrt(81)
x-9 = ±9
x-9 = 9 x-9 = -9
Answer:
Lewis spent £14.82.
Step-by-step explanation:
Total number of cartons of juice Lewis bought = 38
i. If 1 carton of juice = 45 p, then;
Lewis would spend = 38 x 45 p
= 1710 p
Since 100 p = £1, then;
1710 p = 
= £17.10
Lewis would have spent £17.10.
ii. If 4 cartons = £1.56, then;
= 9.5
Lewis would have spent = £1.56 x 9.5
= £14.82
Given that he bought the cartons of juice for the least possible amount. Thus, Lewis spent £14.82.
The middle 50% is represented in the graph by the endpoints of the box. So, the middle 50% of the data is between 13 and 31.
Judy spent 55 mins at gym.
Step-by-step explanation:
Let the time spent by Judy be 'J'
Let the time spent by Sandy be 's'
Mary spent 3 hours at gym.
Sandy spent 50 mins less than Mary
S = 3hours - 50 mins
S = 2 hours 10 mins
Judy spent 1 hour 15 mins less than Sandy.
J = S - 1hour 15 mins
J = 2 hours 10 mins - 1 hour 15 mins
J = 55 mins
Judy spent 55 mins at gym.
Answer:
11
Step-by-step explanation:
Change 1.5% to a decimal which equals 0.015
Multiply 700 by 0.015 which equals 10.5
Since you can't have half a defective product you round
