Answer:
£152.
Step-by-step explanation:
We have been given that a bottle contains 255 coins. 1/3 of the coins are £1.00.
Let us find 1/3 of 255 to find the number of £1 coins.

This means we have £85.
We are also told that 110 of the coins are 50 p coins.


Let us figure out number of 20 p coins by subtracting the number of £1 coins and 50 p coins from 255.





Now let us find total value of the coins contained in the bottle by adding the values of £1 coins, 50 p coins and 20 p coins.


Therefore, the total value of the coins contained in the bottle is £152.
If you just divide 60 and 15 you will get 4. So 4 is you answer
Answer:
(0, -4)
Step-by-step explanation:
I don't quite know how to explain it, but I was taught that the number in the equation that doesn't have a variable, in this case -4, is the y-intercept. The order pair is (0, -4) because a y-intercept is where the line crosses the y-axis and the y-axis is located on the 0 of the x-axis.
Answer:
Here you go
Step-by-step explanation:
BTW what is meant by point in the last blank?
Answer:
The formula for calculating the width of the window is

Step-by-step explanation:
<u><em>The question in English is</em></u>
A rectangular window is l meters wide and h meters high, with a perimeter of 6 meters and an area of 2m². What is the formula for calculating the width of the window?
we know that
The perimeter of the window is equal to

we have

so

simplify
isolate the variable l
----> equation A
The area of the window is equal to

we have

so
----> equation B
substitute equation A in equation B
solve for w

The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
---> formula for calculating the width of the window