Answer:
<h2><u><em>
22.36</em></u></h2>
Step-by-step explanation:
4+[2x3 2nd power] +4 divided by 11
translation
4 + (2×3²) + 4 : 11 =
4 + 18 + 4 : 11 =
4 + 18 + 0.36 =
22.36
Answer:
=£1970
Step-by-step explanation:
10%=£360
5%=£190
40%=£1440
45%=£1630
£3600-£1630=£1970
Answer:
6.9 would be the answer for the second blank
and 8.2 would be the answer for the first blank
Step-by-step explanation:
Answer:
9 Litre of 100% acid, 27 Litre of 20% acid solution
Step-by-step explanation:
We know that 1 = 100% while
0.2 = 20%
We assume that x is volume of 100% solution, while y is volume of 20% solution.
x + 0.2y = (36×40/100)
x+0.2y= 14.4--------eqn(1)
x+y=36-------eqn(2)
x=36-y------eqn(3)
Input eqn(2) into 1 we have
(36-y)+0.2y= 14.4
-y+0.2y=14.4-36
-0.8y= 21.6
y=21.6/0.8
y=27
Hence, 27 Litre of 20% acid is required
From eqn(3) we can find value of x
x = 36-27
9 Litre of 100% acid is required
9 Litre of 100% acid, 27 Litre of 20% acid
Hence, the laboratory technician can combine a batch of 9 Litre of 100% acid, 27 Litre of 20% acid an acid solution that is pure acid with another that is 20% to get the desired concentration
Dude dont saw i need help on this please say what you need help with for ex what is 236 x 75 ÷ 98