B is the answer i I just took it
Answer:
1, 000 hrs
Step-by-step explanation:
The machine prints,
in 3 hrs = 600 books
in 1 hr = 600/ 3 hrs = 200 hrs.
in 5 hrs = 200 × 5
= 1, 000 hrs
The final temperature is 11 I hoped this helped :)
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Given:
product of 2 numbers is 450.
first number is half the second number.
Let us make our own equation based on the given data.
Let x and y be the two numbers.
y * x = 450
y is the 1st number. It is said that it is half the second number, x.
y = 1/2 * x = x/2
Let us substitute y of the 1st equation by its value in the second equation.
x/2 * x = 450
x² / 2 = 450
x² = 450 * 2
x² = 900
√x² = √900
x = 30
The value of x, the 2nd number, is 30.
y = x/2 = 30/2 = 15
The value of y, the 1st number, is 15.
To check:
y * x = 450
15 * 30 = 450
450 = 450
A*b = 12
1*12=12 so 1+12 = 13
2*6=12 so 2+6=8
3*4=12 so 3+4=7
