13: multiply the amount by the tax rate (to make a percent a decimal move the decimal point 2 places to the left) and add the original amount and the taxed amount together. For 12 do above but then multiply the total by the tip rate and add together (basically the same as the tax again) :) I hope this helps
Answer:
The answer is "87 pounds".
Step-by-step explanation:
Please find the complete question in the attached file.
Answer:
53.13
Step-by-step explanation:
To find the measure of an angle use an inverse trig function.
so you can take the inverse to find A 
.
Use a calculator to calculate the value.
A = 53.13
Answer:
x = 8
Step-by-step explanation:
If the number 212x5 is a multiple of 3, the sum of the digits needs to be a multiple of 3, so we have:
2 + 1 + 2 + x + 5 = 10 + x
The value of x can be 2, 5 or 8
If the number is a multiple of 11, we have to calculate the first number minus the second, plus the third, minus the fourth... and so on, and the result needs to be a multiple of 11. So we have:
2 - 1 + 2 - x + 5 = 8 - x
x needs to be 8, so we have 8 - 8 = 0, that is a multiple of 11.
So the value of x is 8.
Answer:
52
Step-by-step explanation:
<u>Spinner A</u>
- Probability of red = 0.5,
- Probability of blue = 0.5
<u>Spinner B</u>
- Probability of red = 0.6,
- Probability of blue = 0.4
<u>Probability of both A and B land on red: </u>
<u>Number of attempts to get outcome of 84 red on both spinners is:</u>
<u>Probability of both spinners land on blue:</u>
<u>Estimated number of both spinners land on blue:</u>
