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3 years ago

5(x + 8) + x + y; x=3 and y=30

2 answers:

6 0

Plug in 3 for x and 30 for y

5(3 + 8) + 3 + 30

Use PEMDAS

5(11) + 3 + 30

55 + 33

88

88 is your answer

hope this helps

emmainna [20.7K]3 years ago

4 0

Substitute the variable's values for the variables themselves.

5(x + 8) + x + y =>
5(3 + 8) + 3 + 30

Use the order of operations to simplify this expression.

5(3 + 8) + 3 + 30
5(11) + 3 + 30
55 + 3 + 30
58 + 30
88

So, the answer is 88.

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Tiger cubs are around 2 years old when they leave their mothers. In the wild, tigers live about 11 years. About what percent of

pogonyaev

Answer:

18.18%

Step-by-step explanation:

Cross-multiply

11 years ------------ 100% of life

2 years ------------- x% of life

11/2 = 100/x ===> 11x = 2*100 ===> 11x = 200 ===> x = 200/11 ===> x = 18.18%

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2 years ago

Please solve it's worth 12 points

4vir4ik [10]

Answer:

300 feet squared i think

Step-by-step explanation:

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2 years ago

The sum of a number and 5 times a second number is represented by the equation a+5b=19 . The sum of half of the first number and

TiliK225 [7]

Here you have a system of 2 equations and 2 unknowns. An easy way to solve this type is to isolate one of the variables.

12a + 2b = 8
2b = 8 - 12a
b =
$b = \frac{8 - 12a }{2}$
b = 4 - 6a

Now plug 4 - 6a into equation 1 to solve for a.

a + 5(4 - 6a) = 19

a + 20 - 30a = 19

-29a = -1

a = 1/29 (answer)

Now plug a into the equation for b

b= 4 - 6(1/29)

b= 110/29 (answer)

4 0

3 years ago

Solve for f in the proportion.<br> 28/44 = F/99 F = ?

victus00 [196]

Answer:

F = 63

Step-by-step explanation:

28/44 = F/99

28/44 x 99 = F

F = 63

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3 years ago

The figure is made up of a square and a rectangle. Find the area of the shaded region.

Viefleur [7K]

Answer:

40 square metres

Step-by-step explanation:

The shaded region is of a triangle, whose area is denoted by: A = (1/2) * b * h, where b is the base and h is the height.

Since the left figure is a square with side lengths 10, we know that the height of the triangle is also 10 metres. The right figure is a rectangle with length 4. Since the total base length of the entire figure is 18 and the base of the square is 10, then the width of the rectangle is 18 - 10 = 8 metres.

This width is also the base of the triangle, so b = 8.

Now plug these values into the equation:

A = (1/2) * b * h

A = (1/2) * 8 * 10 = (1/2) * 80 = 40

The area is 40 square metres.

6 0

3 years ago

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