Step-by-step explanation:
1tsp≈4.9mL
Therefore
10 teaspoons = 49 millilitres
Answer:
8 cars and 7 vans
Step-by-step explanation:
Let c =number of cars
v = number of vans
c+v = 15
4c+6v = 74
Multiply the first equation by -4 to eliminate c
-4c -4v = -60
Adding the second equation
-4c -4v = -60
4c+6v = 74
-------------------
2v = 14
Divide by 2
2v/2 = 14/2
v = 7
There are 7 vans
c+v = 15
c+7 = 15
c = 15-7
c = 8
There are 8 cars
Answer:
The equation of the line best fit is y = x + 12
Step-by-step explanation:
The form of the linear equation is y = m x + b, where
- m is the slope of the line
The rule of the slope is m = , where
- (x1, y1) and (x2, y2) are two points on the line
∵ The line passes through points (2, 14) and (10, 22)
∴ x1 = 2 and y1 = 14
∴ x2 = 10 and y2 = 22
→ Substitute them in the rule of the slope above to find it
∵ m =
∴ m = 1
→ Substitute it in the form of the equation above
∴ y = (1)x + b
∴ y = x + b
→ To find b substitute x by 2 and y by 14 in the equation
∵ 14 = 2 + b
→ Subtract 2 from both sides
∴ 14 - 2 = 2 - 2 + b
∴ 12 = b
→ Substitute it in the equation
∴ y = x + 12
∴ The equation of the line best fit is y = x + 12
Find out what 95% of 99.5 is. "What is 95% of 99.5" is the question you
need to answer. Frame the equation using the words in that sentence.
"is" means equals, "of" means to multiply. So in translation, the
equation you are solving is x=.95(99.5). Now when you solve that, you
will get the dollar amount of the markup, but that is not the whole cost
of the sled. You have to add the mark up to the original cost of
99.50. Does that make sense?
Answer:
it is clear that at 95% confidence that the bonus plan has increased the sales significantly, because if we observe you will notice that sales after is greater than sales before in all six cases.
Step-by-step explanation:
A 95% confidence interval as we have above is the range of values that we can say with utmost certainty and confidence that 95% chance it contains the true mean of the population. in other words we can say that a 95% confidence interval defines a range of values that you can be 95% certain contains the population mean.