54 buttons ÷ 9 button cards = 6
She should buy 6 cards of buttons.
Answer:
7x+1
Step-by-step explanation:
Let's simplify step-by-step.
4x−5+3x+6
=4x+−5+3x+6
Combine Like Terms:
=4x+−5+3x+6
=(4x+3x)+(−5+6)
=7x+1
Hope this helps!
<h2>
Answer:</h2>
<u>The correct option is 3x + 4y = 10</u>
<h2>
Step-by-step explanation:</h2>
The standard form for any linear equations having two variables is written as Ax+By=C. For example, 3x+4y=10 is a linear equation in standard form. When an equation is given in this form, it becomes easy to find both intercepts (x and y). This form is also very useful when solving systems of two linear equations whose solution is required to find the point of intersection of given lines.
Answer:
Following are the solution to the given question:
Step-by-step explanation:
Please find the attached file for the solution.
Answer:
Here's what I get
Step-by-step explanation:
a. Write an equation
(8x + 12y)² + (6x + 9y)²= (10x + 15y)²
b. Transform the equation
(i) Remove parentheses
64x² +192xy + 144y² + 36x² + 108xy + 81 y² = 100x² +300xy + 225y²
(ii) Combine like terms.
100 x² + 300xy + 225y² = 100x² +300xy + 225y²
The two sides are the same.
The equation is an identity.
