Answer:
15 bikes, 6 gocarts
Step-by-step explanation:
so both the vehicles have 1 seat each
the bicycles will be represented by B
the gocarts will be represented by G
because there are only 1 seat per for a total of 21 seats, we have this as the first equation:
B + G = 21
Gocarts have wheels and bikes have 2 seats, so we have this equation:
2B + 4G = 54
from there we can simply replace b with g to find the amount of gocarts first:
B + G = 21
B = 21 - G
2(21-G) + 4G = 54
42 - 2G + 4G = 54
2G + 42 = 54
2G = 12
G = 6
So there are 6 gocarts.
plug in 6 for g
B + 6 = 21
B = 15
therefore, there are 15 bikes and 6 gocarts
Answer: 
Step-by-step explanation:
Let's look at the numbers that we count.
The question says not multiple of 2, so we have to count to following numbers:
1 , 3 , 5
And in total there are 6 numbers, so our probability is
=
X = 3.....................
The percentage of published studies that supported the tested hypothesis has changed from 70 to 85% over the past 25 years.
Hypothesis testing:
A hypothesis testing means investigates a proposed mathematical model to determine whether there is sufficient evidence from a sample of data to reject the defined null hypothesis.
Given,
The percentage of published studies that supported the tested hypothesis has changed from _____ to _____ over the past 25 years.
Here we need to find the change in the percentage for the past 25 years.
Based on the details, the percentage of published studies that supported the tested hypothesis has changed from 70 to 85% over the past 25 years.
To know more about Tested Hypothesis here.
brainly.com/question/17099835
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Isolate the variable by dividing each side by factors that don't contain the variable.
x > 6
