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Svetllana [295]

3 years ago

6

At midnight the temperature in Newtown was -8°C. At noon the next day the temperature in Newtown was 9°C. Work out the rise in t

emperature from midnight to noon.

1 answer:

schepotkina [342]3 years ago

5 0

-8 to 9
you need to get that -8 to 0 which is 8C

Then you get all the way to 9 so 8 + 9

17 degrees C is the rise in temperature

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Does anybody know how to do question 2 please show working out

Natalija [7]

2a.
Since BC = 10m and M is the midpoint, we can find CM by : 10÷2 = 5m
So, CM = 5m

2b. Now, you have the base ( 5m) & hypotenuse (13m). Pythagoras' Theorem:

$c {}^{2} = {a}^{2} + {b}^{2}$
Where c is the hypotenuse, a & b are sides.

${13}^{2} = {5}^{2} + b {}^{2} \\ {5}^{2} + {b}^{2} = 13 {}^{2} \\ {b}^{2} = 13 {}^{2} - {5}^{2} \\ b = \sqrt{144} \\ b = 12$
b here refers to the height.

2c.
Area of a right-angled triangle =
$\frac{base \times height}{2}$
So,
$\frac{10 \times 12}{2} \\ = 60 {m}^{2}$

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fiasKO [112]

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350 people can fit into 42 rooms

Step-by-step explanation:

So we can write it as a relation fraction equation:

$\frac{50}{6}=\frac{x}{42}$

Where:

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Therefore, <u>350 people can fit into 42 rooms.</u>

I hope it helps you!

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