3c + 5t = 39....multiply by -3
9c + 7t = 63
----------------
-9c - 15t = - 117 (result of multiplying by -3)
9c + 7t = 63
---------------add
- 8t = - 54
t = -54/-8
t = 6.75 <=== tables are 6.75
3c + 5t = 39
3c + 5(6.75) = 39
3c + 33.75 = 39
3c = 39 - 33.75
3c = 5.25
c = 5.25/3
c = 1.75 <=== 1.75 per chair
Answer:
C. 450 in.2
Step-by-step explanation:
Answer:
a) 2x+4
b)x=8
Step-by-step explanation:
a) x+x+4 =2x +4
b) 2x+4= 20
2x = 16
x=8
Jay bought 8 packets of Chips
c) Jay: 8 x 60
=£4,80
Lauren : 12 × 60
= £7,2
200/3.8= 52.6 mph
This would work because average speed is distance divided by time
Step-by-step explanation:
Given that,
The length of a carton, h = 9 cm
Width, b = 13 cm
height, h = 24 cm
I drink one-third of the fruit juice, then two third will be left. So, the volume is :
Since, 1 L = 1000 cm³
1872 cm³ = 1.8 L
or
= 1800 mL
Hence, this is the required solution.
