Answer:
= 2 x 10⁷
Step-by-step explanation:
Given expression is
The given expression is simplified as follows;
Therefore, the result of the given expression is 2 x 10⁷
Answer:
To find the sum of an infinite geometric series having ratios with an absolute value less than one, use the formula, S=a11−r , where a1 is the first term and r is the common ratio.
Answer:
A
Step-by-step explanation:
Given
n × 3 = 567 ÷ 27, that is
3n = 21 ( divide both sides by 3 )
n = 7 → A
Answer:
The wingspan of the real aero plane is 65.6 cm
Step-by-step explanation:
Here, we are to calculate what the wingspan of the real aero plane is given the length of the model and the comparison of the model to the real.
This can be best solved using a ratio approach.
What we have is that the model measures to the original at a ratio of 5:8
Hence at all times, the ratio we have must be 5 to 8
Now, we have a model length of 41cm and we want to calculate what the real span will be
Let the real
length be x cm
Thus mathematically;
5:8 = 41:x
5/8 = 41/x
5* x = 8 * 41
5x = 328
x = 328/5
x = 65.6 cm
31.5 is your decimal lol seems simple but it's true
