Doe's anyone understand this?

Mathematics

1 answer:

Kitty [74]3 years ago

5 0

just subtracting by 2x on both sides

hope this helps

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Sarah is renting a cabin for vacation and has two choices. Cabin Arents for $100 per day and has a

enyata [817]

Answer:

x = 2 days

y = 250 $

Step-by-step explanation:

We call "y" total renting costs and "x" total vacation days

according to that in first case we have:

y = 100*x + 50

And for the second case

y = 120*x + 10 (1)

That two equation system represent the equation system of the situation, therefore if we solve that system we will determine the choises with same costs

equating these two equations:

100*x + 50 = 120*x + 10

50 - 10 = 120*x - 100*x

20*x = 40

x = 2 days

Plugging that value in any of the equation (1) or (2) we get y value

y = 120*2 + 10

y = 250 $

4 0

4 years ago

A fruit seller packed some apples into 15 small cartons and 20 big cartons. Each big carton contained 15 more apples than each s

ehidna [41]

Answer:

720 apples

Step-by-step explanation:

Let A be the number of apples in the small pack.

QTY for Small Cartons is 15A,

QTY for Big Cartons is 20(A+15) = 20A+300

From small cartons makes 25% or 1/4 of total, means the big carton makes 75% of total, or 3/4 of total. This also means the qty in big carton is 3 times of small carton

20A+300 = 3X (15A)= 45A

300 = 25A

A=12

Altogether = 15A+(20A+300) = 720 Apples

7 0

2 years ago

The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−2, 2) and goes to Q(5, 2). It goes from Q to R(5

love history [14]

Answer:

The total length (in units) of the biking trail is 17 units.

Step-by-step explanation:

o find distance between points A(x¹, y¹) and B(x², y²), we use formula: