Answer:
4x+7 = 5x-20
(reason: vertical angles are congruent; property used: distributive)
7 = 1x-20
1x = 7+20
1x = 27
x = 27
Answer:
- rounded purchase: $87
- estimated change: $13
Step-by-step explanation:
Rounded to the nearest dollar, the value $87.06 is $87.
This amount subtracted from $100 is the change Shawn will receive, about $13.
Answer:
the answer is a
Step-by-step explanation:
They have the same denominator so add the numerators. It equals 3/7.
Answer:
y + 1 = 5(x - 10)
Step-by-step explanation:
the equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the t-intercept )
rearrange x + 5y = 5 into this form ( subtract x from both sides )
5y = - x + 5 ( divide all terms by 5 )
y = - x + 1 ← in slope- intercept form
with slope m = -
given a line with slope m then the slope of a line perpendicular to it is
= - = - = 5
using m = 5 and (a, b) = (10, - 1), then
y + 1 = 5(x - 10) ← in point- slope form