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goblinko [34]
3 years ago
8

The scale drawing of a rectangular room measures 10cm long by 6cm wide. The actual width of the room is 9 metres. What is the ac

tual perimeter of the room, in metres?
Mathematics
1 answer:
Snezhnost [94]3 years ago
8 0

Answer:

48 meters

Step-by-step explanation:

The first thing is to calculate the scale, since we know both widths it is possible:

we pass the 9 meters to centimeters = 900 cm

900/6 = 150

So the scale would be 1: 150

Which means that the length is 150 times bigger.

10 * 150 = 1500cm or what equals 15m

the perimeter is the sum of all the sides, therefore:

P = 15 + 15 + 9 + 9

P = 48

Which means that the perimeter of the room is 48 meters

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The Jones family and the Connor family both bought the same boxed package of sugar cubes at the store, in which the cubes were a
GrogVix [38]

Answer:

180

Step-by-step explanation:

At the beggining, it says they are stacked in 5 layers which means the number of cubes is divisible by 5.

If the number of cubes equals x:

The least amount of sugar cubes the Jones family could have used is 61*2 which equals 122. The most they couldve used is 61*3 which equals 183.

Based on the information from the Jones family, x is between 122 and 183.

Based on the information from the Connor's, x is between 176 and 264.

Based on the information from both, x is between 176 and 183. The only number that is divisible by 5 between those numbers is 180 cubes.

3 0
3 years ago
Find the unknown side length, x. Write your answer in simplest radical form.
Volgvan

Using the Pythagorean Theorem, you should get 45 [9 + 36]. Then, take the square root of 45 and simplify it to 3√5.

3 0
3 years ago
Which expression is not equal to one fourth of 52?
Zina [86]

Answer:

B) 4% of 52

Step-by-step explanation:

A) 0.25 x 52 = 13

B) 4% of 52 = 0.04 x 42 = 2.08

C) 52 ÷ 4 = 13

D) 52/4 = 13

4 0
3 years ago
Read 2 more answers
Us
aleksandr82 [10.1K]

Answer:

x = 30

Step-by-step explanation:

Since this is a right triangle,

90 = (x + 20) + (x + 10)

90 = x + x + 20 + 10

90 = 2x + 30

90 - 30 = 2x

60 = 2x

60/2 = 2x/2

30 = x

Check:

x + 20

30 + 20 = 50

x + 10

30 + 10 = 40

50 + 40 = 90

Hope this helps!

4 0
2 years ago
Helppppppp !!!! Due in 19 minutes.
babunello [35]

id tbh but u helped me in a min so thx

6 0
2 years ago
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