Let d be number of drinks and b be number of buckets of chips
2d+b=11 so we can say b=11-2d
3d+2b=19 and using b from above in this we get:
3d+2(11-2d)=19
3d+22-4d=19 subtract 22 from both sides
-d=-3 divide both sides by -1
d=3, and from earlier b=11-2d so
b=11-6=5
So a bucket of chips cost $5 and a drink costs $3
First number = x
Second number = x + 2
Third number = x + 4
X + x +2 + x + 4 = 438
Simplify:
3x + 6 = 438
Subtract 3 from both sides
3x = 432
Divide both sides by 3
X = 144
The second number is 144 + 2 = 146
Answer:
131 minutes, an = 15 + (n - 1)(4)
Step-by-step explanation:
each time she is increasing by 4 minutes
we can write this equation like this since we have the difference and the first part:
an = 15 + (n - 1)(4)
note
"an" (or ace of n)'s n is in subscript and is written just like a superscript but on the bottom
we can plug in this equation to find ace of 30 (a30)
15 + (30 - 1)(4)
15 + 29*4
116 + 15
a30 = 131
Answer:
(y+2)=3/4(x+6) or (y-4)=3/4(x-2)
Step-by-step explanation:
Point-slope form : (y-y1)=m(x-x1)
slope = m =(y2 - y1)/(x2 -x1)
Point 1 (-6,-2), so x1= - 6, y1= -2
Point 2 (2, 4), so x2 = 2, y2 = 4
m=(4-(-2))/(2-(-6)) = 6/8 = 3/4
Point-slope form : (y-y1)=3/4(x-x1)
We can use any point. If we use point 1 we get
Point-slope form : (y+2)=3/4(x+6).
If we use point 2 we get
(y-4)=3/4(x-2)
Answer:
10 1/10
Step-by-step explanation:
22/5 + 31/10 + 13/5
44/10 + 31/10 + 26/10
101/10
10 1/10
