X=-2 and y=3.
The first step we take is to substitute the value for y from the second equation into the first equation:
4x+5(3x+9)=7
This is justified by substitution. The next step is:
4x+5*3x+5*9=7
4x+15x+45=7
This is justified by the distributive property. The next step is:
19x+45=7
This is justified by addition of like terms. The next step is:
19x+45-45=7-45
19x=-38
This is justified by the subtraction property of equality. The next step is:
19x/19 = -38/19
x=-2
This is justified by the division property of equality. The next step is:
y=3(-2)+9
y=-6+9
y=3
This is justified by substitution, multiplication and addition, in that order.
Answer:
B
Step-by-step explanation:
We want to find the equation of a line with a slope of 3 that includes the point (0, 5).
We can use the slope-intercept form, given by:
Where m is the slope and b is the y-intercept.
Notice that the given point (0, 5) is already the y-intercept. So, b = 5.
By substitution, we acquire:
Hence, our answer is B.
96 mph
step by step explanation:
240/2.5
Answer:
<em>total</em><em>=</em><em>n÷m</em><em> </em><em>$</em><em>1</em><em>6</em><em>5</em><em>÷</em><em>1</em><em>5</em><em>,</em><em>$</em><em>2</em><em>3</em><em>1</em><em>÷</em><em>2</em><em>1</em><em> </em><em>and</em><em> </em><em>$</em><em>2</em><em>7</em><em>5</em><em>÷</em><em>2</em><em>5</em>
