Answer:
£11,000.
Step-by-step explanation:
First, lets figure out how much 1g of gold costs by doing simple division:
£4000 / 200g = £20
1g = £20
Now we can multiply the cost of 1g of gold by 550g
£20 * 550g = £11,000
550g of gold would cost £11,000.
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Answer:
10 cm²
Step-by-step explanation:
The area of a square = s², where s is the measure of the side
To calculate the side use Pythagoras' identity
Consider the lower side with right triangle legs 3 and 1, then
side² = 3² + 1² = 9 + 1 = 10 ( take the square root of both sides )
side =
, thus
area = (
)² = 10 cm²
Answer:
Let's say we have this equation, for example⤵⤵⤵:

You obviously know that first you must distribute -6 amongst everything inside the parenthesis, and that will give you -6x - 60. Then you'd rewrite the equation with this in mind, to get
12 - 6x - 60 = 60
Next, you need to combine the like terms, in this case 12 and -60, to get -48. Now you have
-6x - 48 = 60
Afterwards, you'd do the opposite of -48 and add it on both sides of the equal sign. Now you'll have -6x = 108
Finally, you'd divide -6 on both sides, in order to get x by itself, to get x = -18
Hopefully, this example/explanation helps you understand the concept better :)
Answer: X=-58
Step-by-step explanation: The absolute value of -71 is 71 so X would have to be -58 to equal 13
3-3 0
——- = —— = zero
-9-9. -18