Answer:
Step-by-step explanation:
→Take out the GCF (Greatest Common Factor). The GCF is 
because both 
and 
can be divided by it, like so:
L = 15m = 1500cm
b= 30cm
h= 4m= 400cm
So, total volume of the wall= l×b×h
= 1500×30×400= 1,80,00,000 cm^3
Now, volume of one brick= 22×12.5×7.5= 2062.5 cm^3
Volume of wall containing only bricks= total volume of the wall - volume of wall containing mortar
= 1,80,00,000 - (1,80,00,000 × 1/12)
= 1,65,00,000 cm^3
So, no. of bricks = volume of wall containing bricks ÷ volume of one brick
= 1,65,00,000 ÷ 2062.5
= 8000 bricks.
Answer:
y=231x
Step-by-step explanation:
To get y by itself just subtract 2 from both sides so, y=231x
Answer:
a) 10
b) 9.8
Step-by-step explanation:
First, round it the nearest whole number:
9.7814 will round up to 10, since the decimal place .7 is larger than .5
Next, round to one decimal place:
9.7814 will round to 9.8, since the 0.08 will round the 0.7 up to 0.8
a) 10
b) 9.8
43.95
divide the KM speed with 1.61 because 1 mile equals 1.61 KM
