Answer:15 hours
Step-by-step explanation:
15+5=20
20+20=40
13+17=30
Add
90 hours
90÷6= 15
15 hours
Answer: 2041 meters
A bicycle wheel is a circular object.
The circumference of a circle is 2π(radius)
Here given:
- radius = diameter/2 = 65/2 = 32.5 cm
Hence find the length for each revolution:
- 2π(32.5) = 204.1 cm per revolution
Then for 1000 revolutions:
- 204.1 × 1000 = 204100 cm ≈ 2041 meter
Answer:
6 × (11 - x) = -72 => x = 23
or
6 × (x - 11) = -72 => x = -1
Step-by-step explanation:
there are at least two possibilities, as the "difference between two numbers a and b can be excised as either a-b or b-a.
in any case, just following the sentence
Six times = 6 ×
difference of 11 and a number = 11 - x
is -72 = -72
so,
6 × (11 - x) = -72
and that is true for x = 23
but
the other direction is possible too
6 × (x - 11) = -72
and that is true for x = -1
<h3><u>It's called a difference.</u></h3>
When you're subtracting one quantity from another, the answer is known as the difference.
There's a different name depending on the symbol.
In addition, it's the sum.
In multiplication, it's the product.
In division, it's the quotient.