D because 3×1=3 and you'll get the same answer if you switch it 1×3=3
Answer:63
Step-by-step explanation:
Length of arc =14π
Φ=80°
Radius =r
Length of arc =Φ/360 x 2 x π x r
14π=80/360 x 2 x π x r
14π=(80x2xπxr)/360
14π=160πr/360
Cross multiply
14π x 360=160πr
5040π=160πr
Divide both sides by 160π
5040π/160π=160πr/160π
31.5=r
Diameter =2 x r
Diameter =2 x 31.5
Diameter =63
X - price per pound of cheddar cheese;
y - price per pound of chicken loaf;
2 x + 3 y = 26.35 / * 2
1.5 x + 2 y = 18.35 / * ( - 3 )
---------------------------------
4 x + 6 y = 52.7
+
-4.5 x - 6 y = - 55.05
-----------------------------
- 0.5 x = - 2.35
x = 2.35 : 0.5
x = $4.7
6 y = 52.7 - 18.8
6 y = 33.9
x = 33.9 : 6
y = $5.65
Answer: Cheddar cheese costs $4.7 per pound and chicken loaf costs $5.65 per pound.
Y = mx + b
slope(m) = 6
(20,220)....x = 20 and y = 220
now sub and find b, the y int
220 = 6(20) + b
220 = 120 + b
220 - 120 = b
100 = b
so ur equation is : y = 6x + 100
to graph :
y = 6x + 100.....u have a slope of 6....u have a y int of 100 or (0,100)...
I would say plot (0,100) and since ur slope is 6, go up 6 and to the right 1...but that is not to helpful because ur graph is not in intervals of 1.
So we will find some points on ur line.
y = 6x + 100....when x = 5
y = 6(5) + 100
y = 30 + 100
y = 130....so another point on ur line is (5,130)
y = 6x + 100...subbing in 10 for x
y = 6(10) + 100
y = 60 + 100
y = 160....another point is (10,160)
keep finding points this way...here are some more...
(15,190) , (20,220), (25,250)