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arlik [135]
3 years ago
10

4x = 18-y, if x=2 and y=6

Mathematics
1 answer:
yarga [219]3 years ago
3 0
If you're using substitution, solve for the first variable in one of the equations, then substitute the result into another equation. your answer is no solution:

x = 2 ; y = 6

4x = 18 - y
4 (2) = 18 - 6
8 = 12

8 does not equal 12, there is no solution
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Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?
Brrunno [24]

Answer:

A

Step-by-step explanation:

The probability of rolling a 3 is  

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forsale [732]

The correct answer is

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8 0
3 years ago
Help I was never taught how to do this im confused
vazorg [7]

Answer:

36

Step-by-step explanation:

Area of a triangle = (bh)/2

Where b = base length and h = height

Given base length: 18ft

Given height: 4ft

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b = 18

h = 4

Now to find the area we simply plug in these values into the formula

Area = (18)(4)/2

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5 0
3 years ago
12. (07.06 LC) A library building is in the shape of a rectangle. Its floor has a length of (3x + 5) meters and a width of (5x −
Goshia [24]

ANSWER

15 {x}^{2} + 22x - 5

EXPLANATION

It was given that, the length of the rectangular building is

(3x + 5) \: meters

and the width of the is

(5x - 1) \: meters

The area of a rectangular building is calculated using the formula for finding the area of a rectangle.

A = l \times w

Since the dimensions are given in terms of x, the area is also a function of x,

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We expand to get,

A(x) = 3x(5x - 1) + 5(5x - 1)

A(x) = 15 {x}^{2}  - 3x + 25x - 5

A(x) = 15 {x}^{2} + 22x - 5

meters square

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3 years ago
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