Answer:
Let the original price be 'x'
7/100 * x + x = 305
(7x+100x)/100 = 305
107x = 305 * 100
107x= 30500
x= 30500/107
x= 285.04
Therefore, the original buying price is £ 285.04
Hope you understood......
Answer:
3
Step-by-step explanation:
Let s = number of student tickets and a = number of adult tichets;
We have the equation: s + a = 559 and s = 59 + a;
Then, we solve the equation: 59 + a + a = 559;
59 + 2a = 559;
2a = 500;
a = 500/2;
a = 250;
s = 59 + 250;
s = 309;
We are told in the question that 1 carat is equal to 200 mg.
The Hope Diamond is 44.5 carats. Let's multiply the weight of 1 carat by 44.5 to get the weight of the Hope Diamond in mg:

The total weight of the Hope Diamond is 8,900 mg. However the question asks for the weight in grams. There are 1000 mg in 1 gram, so let's divide the known weight of the Hope Diamond in mg by 1000 to get the weight converted to grams:

Now we know that
the weight of the Hope Diamond is equal to 8.9 grams.
I think it is .8 i could be wrong i’m not sure