Jimmy had three times add many comic books as Charlie. Charlie had 2/3 as many add Bob. Bob had 72 books. how many does Jim have
Answers
J = 3C
C = B(2/3)
B = 72
Solving upwards...
C = 72(2/3)
C = 48
J = 3(48)
J = 144
Jim has 144 comic books.
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Jeremy drove from Portland to Miami. He determines that the expression 450x + 150 represents the distance in miles he traveled, where x is the number of days after the first day. Which statement describes correctly what the coefficient of x represents?
What is the standard form of the equation of a parabola is y = 5x^2 + 20x + 14. What is the vertex form of the equation
Solve each question for X , y=-9+x^2
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Answers
2. (3,1) and (3,-1)
Answers
Once you plug that in you should get the final answers of
1. slope = 3
2. slope = -2/0 which is undefined which means this slope would be part of a vertical line
5x + 8y = –29
7x – 2y = –67
Answers
multiply both sides of the bottom by 4 and add 5x+8y=-29
28x-8y=268
33x=-297
x=-9
5(-9) +8y= -29
-45 +8y =-29
8y= 16
y=2
Answers
To complete the square for the equation X^2 + 16X + __ = 18 + __, we need to add 64 to both sides to get the equation X^2 + 16X + 64 = 18 + 64.
To complete the square for the given quadratic equation, we need to add a specific value to both sides of the equation. That specific value is the square of half the coefficient of the X term. In this case, the X term's coefficient is 16, so we need to take half of 16 (which is 8) and square it (which is 64).
So, the number to be added to both sides of the equation is 64.
The completed square equation then becomes: X^2 + 16X + 64 = 18 + 64.
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The probable question may be:
What number needs to be added to both sides of the equation in order to complete the square?
X^2+16X+____=18+___
Answer:
16
Step-by-step explanation:
Given x^2 + 16x = 18. Complete the square:
Take half of the coefficient of x (in other words, take half of 16) and square the result: we get 8^2 = 64.
Add 64, and then subtract 64 from x^2 + 16x + 64 = 18 + 64
Then (x + 8)^2 = 82. From this point on it's easy to find the roots, but we were not asked to do so.
The desired number is 64; note that it is (16/2)^2.
Answers
Answer:
Hi! The correct answer is 7x=-3!
Step-by-step explanation:
~Write in standard form~
Final answer:
The equation 7x+y+3=y is a linear equation as it consists of variables to the first degree, but it's not in the standard form. Upon rearranging, the standard form will be 7x - 3 = 0.
Explanation:
Yes, the equation 7x+y+3=y is a linear equation because it represents a straight line when plotted on a graph. This is because it consists only of the first degree variables (that is, variables raised to the power of 1) of x and y, which define linear equations. However, it is not in the standard form. The standard form of a linear equation is usually written as Ax + By = C, where A, B, and C are constants and x and y are variables, and A and B are not both zero. Therefore, to express this equation in standard form, we need to rewrite it, resulting in the equation 7x + y - y - 3 = 0 or 7x - 3 = 0.
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