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salantis [7]
3 years ago
13

So, yeah I wasn't at school.

Mathematics
2 answers:
azamat3 years ago
6 0

Answer:

I'm pretty sure its. the second second option

antiseptic1488 [7]3 years ago
4 0

Answer:

#4

>

Step-by-step explanation:

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The perimeter of rectangular park is 450m.the length of the sides is in the ratio 3:2.find the area of the rectangle
matrenka [14]

Answer:  12,150 m²

<u>Step-by-step explanation:</u>

The ratio is 3:2 which means

Length (L) = 3x

Width (w) = 2x

Perimeter (P) = 2L + 2w

              450 = 2(3x) + 2(2x)

              450 = 6x + 4x

              450 = 10x

                45 = x

                                      L = 3x                w = 2x

                                         = 3(45)               = 2(45)

                                         = 135                  = 90

Area (A) = L × w

              = 135 × 90

              = 12,150

6 0
3 years ago
If P(x) = 0.35, find the complement
katovenus [111]
Hello : 
P(x) + P(x') =1   ...( x' is the <span>complement of x)
0.3 +</span> P(x') =1
 P(x') = 1 - 0.3 = 0.7
4 0
3 years ago
Absolute power of x minus 8 equals -5 solve
Shalnov [3]

Your answer is "x=3"!

8 0
3 years ago
Read 2 more answers
The sum of the digits of a two-digit number is 5. If the number is multiplied by 3, the result is 42. Write and solve a system o
Elenna [48]
A two digit number has a tens digit and a ones digit.
Let's say x = tens digit and y = ones digit

"The sum of the digits is 5"
x + y = 5

The next phrase is "the number multiplied by 3 is 42" but we need to represent the number using the digits. So they need to be multiplied first by their place value and added together. [Example: 34 = 3(10) + 4(1)]

The number is: 10x + y
3(10x + y) = 42

The system of equations: (two equations for two unknowns)
x + y = 5
30x + 3y = 42

Then you can use substitution or elimination to combine and solve.
I'll use elimination, multiply the entire top equation by -3 and add the equations together. y will cancel out

-3x - 3y = -15
30x + 3y = 42
------------------
27x + 0 = 27
x = 1

then plug x = 1 into either equation to find y

1 + y = 5
y = 4

remember the x and y represent digits so the number xy is 14
6 0
3 years ago
Round this decimal!<br><br> 0.4944
Otrada [13]

1) 0.494

2) 0. 49

3) 0.5

7 0
3 years ago
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