Answer:
y-intercept = (0,-2)
Step-by-step explanation:
Answer:
Step-by-step explanation:
The two different rentals give rise to two equations. Let t and c represent the rental costs of a table and chair, respectively. The rentals are ...
5c +2t = 23
3c +8t = 58
Cramer's rule tells you ...
c = (2·58 -8·23)/(2·3-8·5) = -68/-34 = 2.00
t = (23·3 -58·5)/-34 = -221/-34 = 6.50
The cost to rent each chair is $2.00.
The cost to rent each table is $6.50.
_____
<em>Cramer's Rule</em> says the solution to
ax +by = c
dx +ey = g
is ...
x = (bg -ec)/(bd -ea)
y = (cd -ga)/(bd -ea)
When the equation's coefficients are not convenient to achieve elimination of a variable, Cramer's rule can get to the solution very quickly. The same number of math operations are involved, but they are expressed in terms of a formula that can be used with no guesswork.
Answer:
The multiples of 20 are
Step-by-step explanation:
1, 20
2, 10
4, 5
Answer:
C)3
Step-by-step explanation:
divide 3/4 by 1/4 and get 3
Answer:
Area of walkway = 16(x+4)
Step-by-step explanation:
Length of the sides of the square outdoor = x feet
Area of the square outdoor = length x length
= x * x
=
The square outdoor is surrounded by 4 feet of walkway. So that,
length of the walkway = (x + 2(4))
= (x + 8)
Area of walkway with outdoor = (x + 8)*(x + 8)
= ( + 16x + 64)
Area of walkway = Area of walkway with outdoor - Area of the square outdoor
= ( + 16x + 64) -
= 16x + 64
Area of walkway = 16(x+4)