3 years ago

Two quantities, x and y, are related such that

Mathematics

1 answer:

Ronch [10]3 years ago

7 0

Answer:b

Step-by-step explanation:

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Lea and Rob are selling fruit for a school fundraiser. Customers can buy small boxes of orangesand large boxes of oranges. Lea s

MaRussiya [10]

The first step is to define the system of equations.

Take x and y as the cost of a small box and a large box respectively.

$\begin{gathered} 2x+y=12 \\ 3x+y=16 \end{gathered}$

Solve the system.

$\begin{gathered} 2x+y=12 \\ y=12-2x \\ 3x+y=16 \\ y=16-3x \end{gathered}$ $\begin{gathered} 12-2x=16-3x \\ 3x-2x=16-12 \\ x=4 \end{gathered}$ $\begin{gathered} y=12-2x \\ y=12-2\cdot4 \\ y=12-8 \\ y=4 \end{gathered}$

A small box costs $4 and a large box costs $4 too.

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1 year ago

Use the formula to find the total sum of the interior angles for a polygon with 15 sides.

trapecia [35]

Answer:

Sum = 2,340°

Step-by-step explanation:

Sum of interior angles = 180·(n-2),

where n is the number of sides the polygon has

Sum = 180·(15-2)

Sum = 180·13

Sum = 2,340°

7 0

2 years ago

Which equals the product of (x-3)(2x + 1)? 222 – 7x - 3 22 – 5x - 3 3x = 2 6,2

Katena32 [7]

Answer:

Step-by-step explanation:

$2 {x}^{2} - 5x - 3$

4 0

3 years ago

Students were asked to use the distributive property to write an equivalent expression for the expression (x-5)(x-2).

andre [41]

Answer:

x^2-7x+10

Step-by-step explanation:

the answer is x^2-2x-5x+10=

5 0

3 years ago

Read 2 more answers

180=2x+y which equation is used to find x

Serggg [28]

180=2x+y
180-y=2x
(180-y)/2=x

3 0

4 years ago