Answer:
7 hours
Step-by-step explanation:
First subtract 50 from 505 (505 - 50) which equals 455. Next divide 455 by 65 (455/65) which is 7. Therefore the answer is 7.
Answer:
The value of x would be or
Step-by-step explanation:
Given,
x tons of 10% gravel G mixture is mixed with y ton of 2% gravel G to obtain 5% gravel mixture,
Thus, gravel G in x ton + gravel in y ton = gravel G in the resultant mixture,
⇒ 0.1x + 0.02y = 0.05(x+y),
0.1x - 0.05x = 0.05y - 0.02y
0.05x = 0.03y
Now, resultant mixture is z ton,
i.e.
From equation (1),
6.4 cm is the needed circumference of the gasket following dilatation with a scale factor of 2.
<h3>
What does circumference mean?</h3>
The boundary length of any circular shape is known as the circumference.
<h3>What is scale factor?</h3>
A scale factor is a quantity multiplier (also known as a scale). The scaling factor for x, for instance, is represented by the letter "C" in the equation y = Cx. The factor would be 5 if y = 5x were the equation.
<h3>
According to the given data:</h3>
After scale factor 2 is applied, 6.4 cm must be the gasket's needed circumference.
It includes a rubber gasket with a 3.2 cm circumference. The circumference of the gasket has must be calculated after scaling up by factor 2.
Here,
3.2 cm is the gasket's circumference.
The circumference changed upon scale factor 2 dilatation.
Dilated gasket circumference: 2 * 3.2 = 6.4 cm
As a result, 6.4 cm is the needed circumference of the gasket following dilatation with a scale factor of 2.
To know more about scale factor visit:
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Answer:
ok
Step-by-step explanation:
Answer:
C 54, -7
Step-by-step explanation:
a. (-6)(-9) = 54
b. 28(-0.25) = -7
Answer: C 54, -7