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xz_007 [3.2K]
2 years ago
14

I need help with this pleaseee

Mathematics
1 answer:
Over [174]2 years ago
6 0

Answer:5 percent

Step-by-step explanation: subtract new amount minus old amount then divide then make the decimal you get into and change to a percent

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A rectangular room is 1.5 times as long as it is wide, and its perimeter is30 meters. find the dimension of the room.
Tpy6a [65]

Answer:

6 meters by 9 meters

Step-by-step explanation:

<u><em>Step 1: Formula for perimeter of rectangle</em></u>

Rectangle's perimeter = 2 (length) + 2 (width)

Rectangle's perimeter = 2 (length + width)

<u><em>Step 2: Find the length and width in terms of x</em></u>

Width = x

Length = 1.5 times width

Length = 1.5x

<u><em>Step 3: Find x</em></u>

Perimeter = 2(length + width)

30 = 2 (1.5x + x)

30/2 = 2.5x

15/2.5 = x

x = 6

<u><em>Step 4: Find the length and width</em></u>

Width = x = 6 meters

Length = 1.5x = 1.5(6) = 9 meters

Therefore, the dimensions of the room are 6 meters and 9 meters.

6 0
3 years ago
From the top of a building, 40 feet above the ground, a construction worker locates a rock at a 12° angle of depression. How far
MA_775_DIABLO [31]

Answer:

188 m

Step-by-step explanation:

\tan(12)  =  \frac{40}{x}  \\ x =  \frac{40}{ \tan(12) }  \\ x = 188

6 0
3 years ago
Read 2 more answers
If there are 6 egg cartons that are filled with eggs and there is a 7th egg carton that has 7 eggs, how many eggs are there in t
Mandarinka [93]
12 x 6 equals 72 so 72 + 7 = 79 :)

Your answer is 79
4 0
3 years ago
The solution set of x^2 - 64 = O Is
k0ka [10]
X² -64=0 
    +64 

x²=64

√x=√64
x=8
5 0
2 years ago
The cost of a length of fabric is proportional to the number of yards purchased. The graph shows this relationship.
posledela
Unit rate means how much does it cost for 1 item for example...if you can download 2 songs for $5 how much did it cost to download 1 song...you would simply take $5 divided by 2 to get $2.50

In this case we have 5 yards of fabric for $18 so all we have to do is take $18 divided by 5 to find out how much just 1 yard costs.

so $18 divided by 5 is $3.60  so the unit rate cost per yard is $3.60 

to make sure this is correct you can check your answer like this.  If it is $3.60 for 1 yard how much would it be for 5 yards?  Multiply $3.60 and 5 if we get $18 then our answer is correct.  $3.60 x 5 does equal $18 so we were correct
3 0
2 years ago
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