the area of a rectangle is 42 square inches and one side is 12 inches long . find the perimeter of the rectangle
Answers
Make the other side x.
12x=42
x=42/12=3.5
The perimeter is 2x+2y where x and y are sides of the rectangle.
P= 2(3.5)+2(12)=7+24=31 inches
Hope this helps.
Answer:
The area is one side times the other side
Make the other side x.
12x=42
x=42/12=3.5
The perimeter is 2x+2y where x and y are sides of the rectangle.
P= 2(3.5)+2(12)=7+24=31 inches
Hope this helps.
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The value of dollars, y, of a car x years after it was purchased can be modeled by the function y=14,000-875x What is the meaning of the y-intercept of the linear model?a) The initial value of the car is 14,000.b) The average value of the car is 14,000.c) The car’s value decreases by $875 each year after it was purchased.d) The car’s value decreases by $16 each year after it was purchased.Please help.
What fraction is equal to 3/5
Raja can read 20 pages in an hour. How many pages can he read each minute? Can you explain this to me with an answer?
Answers
y/7 = 4
To get rid of the denominator of y, we have to multiply both sides by this amount (7).
(y/7)*(7) = (4)(7)
When we simplify, we get:
y = 28
If we go back to the original equation and plug in our answer, 28/7 = 4, we can see that it results in a true statement.
Therefore, the answer is y=28.
To isolate y, we need to multiply either sides by 7 to cancel out the fraction.
7 and 7 cancels out
y = 28
x^2=-36 (picture)
Answers
This equation is not possible. All numbers that are squared end up as positive. -6^2 still equals 36 as well as 6^2. Hope this helped!
A.
$33,914
B.
$33,745
C.
$34,878
D.
$33,375
Answers
Answer: B
Step-by-step explanation: When the number of observations is odd the formula is:
$ x_m = x_\frac{n+1}{2}$
When the number of observations is even the formula is:
$ x_m = \frac{x_\frac{n}{2}+x_\frac{n+2}{2}}{2}$
Answers
y=-2x+8
y=1/2x
y=-3/4x-1
y=x+5
please show work step by step for each.
Answers
2. 2
3. 1/2
4. 3/4
5. 1
The answer to the questions for each slope.
1. The equations in this example are already set equal to "y". Identify the slope and y-intercept in each equation. Remember: y = mx + b, where m = slope and b = y-intercept.
y = 2x + 1
slope = 2
y-intercept = 1
y = -x + 7
slope = -1
y-intercept = 7
2. Graph the lines.
This example used the slope-intercept method of graphing straight lines.
The b-value tells you where the line crosses the y-axis.
The slope, m, tells you the rise over the run.
If you need help graphing lines, see Graphing Linear Equations.
Find the intersection point (where the lines cross).
These lines cross at the point (2,5).
This means the solution to this system is:
Solution: x = 2 and y = 5.
graph1
3. CHECK: Substitute x = 2 and y = 5 into BOTH of the original equations. If your solutions are correct, both equations will be true!
y = 2x + 1
5 = 2(2) + 1
5 = 5 (check)
y = -x + 7
5 = -(2) + 7
5 = 5 (check)
Answers
3 : 1, or 3 to 1, thus 3 times as many.