What is the slope of this line?
Answers
Answer:
slope = 0
Step-by-step explanation:
The slope of a horizontal line parallel to the x- axis is zero
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The ratio of boys to girls in homeroom 2:3. If there are 8 boys, how many girls are there?
Fill in the black (please answer fast thank you)B-2 C- 4
A news report says that 28% of high school students pack their lunch. Your high school has 600 students. How many students in your high school would you expect to pack their lunch?
What is another name for the set of counting numbers
Answers
How much will your membership cost if you keep it for 20 months?
Answers
Answer:
Write an equation for the cost of then membership, c, that you pay if you keep your membership for m months.
Answer: c=35m
How much will your membership cost if you keep it for 20 months?
Answer: 700
Step-by-step explanation:
Answer:
c=35m
700
Step-by-step explanation:
IT WORKED ON KHAN ACADEMY
Answers
Answer:300
Step-by-step explanation:
20:36 ratio of 20 to 36
25:81 ratio of 25 to 81
10:14 ratio of 10 to 14
14:18
Answers
Answer:
20:36
Step-by-step explanation:
5:9
multiply both parts of the ratio by 4
5 x 4 = 20
9 x 4 = 36
So 20:36 is equivalent to 5:9
Here is Triangle A. Lin created a scaled copy of Triangle A with an area of 72 square
units.
C.What is the length of the bottom side of the scaled copy?
Please hurry
Answers
Answer:
The length of bottom side of the scaled copy is 12 u
Step-by-step explanation:
To solve this problem we have to know that to calculate the area of a triangle we use the following formula
a = area
b = base
h = height
a = b * h
In the triangle A the base and the height are equal to 3
b = h
Now that we know that b & h we can calculate the base of the scaled copy
72 u² = b * b
72 u² = (b)²
√(72 u²) = b
12 u = b
The length of bottom side of the scaled copy is 12 u
Final answer:
To find the length of the bottom side of the scaled copy of Triangle A, we need to find the scaling factor which is the square root of the ratio of the areas of the scaled copy and the original triangle. The length of the bottom side of the scaled copy is 8 times the length of the bottom side of the original triangle.
Explanation:
To find the length of the bottom side of the scaled copy of Triangle A, we need to find the scaling factor. The scaling factor is the square root of the ratio of the areas of the scaled copy and the original triangle. Here, the area of the scaled copy is given as 72 square units. Let's assume the scaling factor as 'k'. So the area of the scaled copy is k^2 times the area of the original triangle. Therefore, we have the equation k^2 = 72.
Taking the square root of both sides, we get k = sqrt(72).
So the length of the bottom side of the scaled copy is 8 times the length of the bottom side of the original triangle.
Learn more about Finding the length of the bottom side of a scaled copy of Triangle A here:
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Answers
2x - y = -1
Ok, we are going to solve this in 2 parts. First we have to solve for one of the variables in one of the equation in terms of the other variable. I like to take the easiest equation first and try to avoid fractions, so let's use the first equation and solve for x.
-x - y = 8 add y to each side
-x = 8 + y divide by -1
x = -8 - y
So now we have a value for x in terms of y that we can use to substitute into the other equation. In the other equation we are going to put -8 - y in place of the x.
2x - y = -1
2(-8 - y) - y = -1 multiply the 2 through the parentheses
-16 - 2y - y = -1 combine like terms
-16 - 3y = -1 add 16 to both sides
-3y = 15 divide each side by -3
y = -5
Now we have a value for y. We need to plug it into either of the original equations then solve for x. I usually choose the most simple equation.
-x - y = 8
-x - (-5) = 8 multiply -1 through the parentheses
-x + 5 = 8 subtract 5 from each side
-x = 3 divide each side by -1
x = -3
So our solution set is
(-3, -5)
That is the point on the grid where the 2 equations are equal, so that is the place where they intersect.