Answer:
$1210
Step-by-step explanation:
Let x be total amount
First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with
Then he put 2/5 of his remaining money into a checking account
Rest he donated to charity
Hence total amount of money John originally had was $1210
We first calculate the z-score corresponding to x = 1075 kWh. Given the mean of 1050 kWh, SD of 218 kWh, and sample size of n = 50, the formula for z is:
z = (x - mean) / (SD/sqrt(n)) = (1075 - 1050) / (218/sqrt(50)) = 0.81
From a z-table, the probability that z > 0.81 is 0.2090. Therefore, the probability that the mean of the 50 households is > 1075 kWh is 0.2090.
First find GCF of the numbers:-
GCF of 2, 6 and 8 = 2
GCF od x^2 x and x is x
GCF of y^2, y^2 and y^3 is y^2
so the answer is 2xy^2
The third choice.
To answer this item, we must convert first one unit of measurement to the other to be able to perform some mathematical operation. Each ton is composed of 2000 pounds which means that 3/4 ton will be 1500 pounds. Each pound is 16 ounces. Thus, 4 pounds and 14 ounces is equal to 4.875 lbs. Dividing,
number of bricks = 1500 lbs / 4.875 lbs
= 307.7
Thus, the number of bricks that I need. Thus, the answer is approximatleu
Answer:
2 Times
Step-by-step explanation:
Light A flashes every 15 seconds.
Light B flashes every 18 seconds.
First, we determine the next time both lights will flash together.
This is done by finding the Least Common Multiple of the two numbers.
15=3X5
18=
LCM of 15 and 18=
This means that both lights will flash together after 90 seconds.
Now, 4 Minutes =4 X 60 =240
240=90+90+60
Therefore, the number of times more both light will flash together in the next 4 Minutes
= 2 Times
