Answer:
28
Step-by-step explanation:
Convert element to fraction:
2/3 x 42/1
Cross-cancel common factor:
2/1 x 14/1
Multiply Factors:
2 x 14
1 x 1
Multiply the numbers 14 x 2 = 28
And boom, the answer is 28!
We need to swap the numerator and denominator, and change the sign of one of them to get a perpendicular slope.5x + 10y = c. Now subtract the point.
5(-4) + 10(7) = -20 + 70 = 50 = c
5x + 10y = 50 is an equation. If we want, we can divide everything by 5 to get x + 2y = 10.The more usual way to do these is put the equation in slope-intercept form by solving for y. 10x-5y=8 -5y = -10x + 8 y = 2x - 8/5 Now you have the slope of the original line, 2. Any line perpendicular to this one must have a slope that is the negative reciprocal of this one, -1/2 So this new line must be y = -1/2 x + c .Now subtract in point to solve for c.
7 = (-1/2)(-4) + c 7 = 2+c
5 = c
y = -1/2 x + 5
The first time we solved we got this.
x + 2y = 10 but, if we divide everything by 2, we get 1/2 x + y = 5 So... subtract 1/2 x from both sides and you have identical equations. So the two are equivalent. The answer is y = -1/2 x + 5
Hope this helped!
Answer:
3 hours
Step-by-step explanation:
y = mx + b
for each hour you are charged 15 dollars. for every 1 hour, you are charged $15.
y = 15x
you must also add the base fee of 35
y = 15x + 35
if you know that y = 80,
80 = 15x + 35
solve for x
x = 3
If the scaled square side was 3, and the scale factor was 3, then the side was dilated from a square with side values of 1.
1* 3 (the scale factor)= 3
I hope this helped you!
Brainliest answer is appeciated.
