Answer:
A. 1:2.
Step-by-step explanation:
24: 10+6+8+24
24:48
= 1
= 2
1:2
£3000 x 0.4 to the power of 3= £192
£192 + £3000 = £3192
V=3.14*4/3*r^3
r=4/2=2
v=3.14*4/3*2^3=33.4933333
B
Answer:
a=55
Step-by-step explanation:
This question is asking for you to find the whole (a), given a part (11). This can be done through multiplication. 20% is 1/5 of 100%. This means to find the whole number, you should multiply the part by 5. 11*5=55. So, a must equal 55.
We can check this answer by working backward. Do this by finding 20% of 55, and checking to see if it is 11. To find a percentage of a number, multiply that number by the percent in decimal form. So, 20% of 55 is equal to 0.2*55, which is 11. Therefore, the answer is correct.
