Answer:
18
Step-by-step explanation:
Your answer is B. 48 miles. This is because the formula a² + b² = c² can be used to find the hypotenuse, which means the formula
a² - c² = b² can be used to find the side of a right triangle. This means that we can do
50² - 14² = 2304, and then we square root it to get 48.
I hope this helps!
If you know the center is at (-1,3), then find r by writing out the standard formula for the equation of a circle, as follows:
(x-2)^2 + (y-5)^2 = r^2
We still have the other point to deal with: (-4,1). Subst. -4 for x in this equation, and 1 for y:
(-4-2)^2 + (1-5)^2 = r^2. Then 36 + 16 = r^2,
and 52 = r^2, so that the radius is positive sqrt(52).
You could write that as sqrt(4)sqrt(13) = 2sqrt(13). Take your pick.
Answer:
Step-by-step explanation:
Question 1. 50% of what number is 100?
Number = x
50%x = 100
5x/10 = 100 (50% = 2/10)
5x = 1000 (Multiplying by 10 at both sides of the equation)
<u>x = 200</u> (Dividing by 5 at both sides of the equation)
<u>Part 50 Whole 100 Part 75 Whole 150 Part 100 Whole 200</u>
Question 2. 25% of what number is 30?
Number = x
25%x = 30
x/4 = 30 (25% = 1/4)
x = 120 (Multiplying by 4 at both sides of the equation)
<u>Part 25 Whole 30 Part 50 Whole 60 Part 75 Whole 90 Part 100 Whole 120</u>
<u>Question 3. What did you differently to find the whole using a ratio table?</u>
Using a ratio table is a much more simple path to get the whole. I take it and just calculate the double of the information given to me for completing the next values in my table, until I get the part 100 and its correspondent whole.
Answer:
51 correct : 9 incorrect = 17 correct / 9 incorrect
35 girls : 15 boys = 7 girls / 3 boys
Step-by-step explanation:
51 correct : 9 incorrect,
= 51 : 9
= 51 / 9
= 3 x 17 / 3 x 3
= 17 / 3
= 17 correct / 9 incorrect
35 girls : 15 boys
= 35 : 15
= 35 / 15
= 5 x 7 / 5 x 3
= 7 / 3
= 7 girls / 3 boys