2(3-4a) + 5(a-7) first do the distributive property
6-8a + 5a-35 now combine like terms
-41 - 3a is the final answer
Answer:
3700hours
154days
Step-by-step explanation:
Speed can be defined as the distance cover per time, it can be expressed as
Speed= distance/ time........eqn(1)
Given:
distance between two planets= 4.07×10^¹²
speed of light = 1.1×10^⁹ kilometres per hour
Time= ??
Then substitute the values into equation (1) we have
Speed= distance/ time
1.1×10^⁹ kilometres per hour= 4.07×10^¹²kilometre/ time
Cross multiply, we have
Time= (4.07×10^¹²kilometre) /(1.1×10^⁹ kilometres per hour)
Time= 3700hours.
To convert to day, we know that
60 minute= 1hour
24hour=1day
Time= (3700hour×1day)/24hour
Time= 154days approximately.
Hence, the time taken for light to travel from one of these planets to the other is 154days or 3700hours
So 32 dollars for 8 cookies.
To find the price of one item, you take the amount of items, and divide it by the price:
32 / 8 = 4 dollars for the price of 1 cookie.
Answer:
Option A.
Step-by-step explanation:
we know that
The circle 1 and circle 2 have the same center
The ratio of its radius is equal to the scale factor
The scale factor is equal to
<em>That means</em>
The radius of circle 1 is 4 times the radius of circle 2
therefore
Circle 1 is a dilation of circle 2 with a scale factor of 4
15/20
Figure out what number to use for simplify
Which is 5
Divide the numerator and denominator by 5
15/5=3
20/5=4
Answer:3/4
