3x+y=4
2x+y=5
solve using linear combination

Answers

Answer 1

Answer: Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7

Answer 2

Answer:

Answer:

(-1,7)

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

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Munson's Sporting Goods purchases bowling balls from the manufacturer for a whole sale price of $50 each.There is a 60% mark up when they sell the bowling balls to their customers.What would be the retail price of a bowling ball?

Answers

The bowling balls are $80 each

Please help me idk howwwwww

Answers

Answer:

OPTION B: y = $(1)/(2)$ x - 2

Step-by-step explanation:

To find the equation of the line substitute the value of x and compare the corresponding value of y.

OPTION A:

y = 2x + 4

Substitute x = 0. We get, 2(0) + 4 = 4

When x = 0, y = -2 $\ne$ 4.

OPTION B:

y = $(1)/(2)$ x - 2

Substitute x = 0, we get $(1)/(2) (0) - 2$

= -2

When x = 2, $(1)/(2)(2) - 2$ = 1 - 2

=-1

Similarly, When x = 4, $(1)/(2)(4) - 2 = 2 - 2$

= 0.

Since, all the values are satisfied, OPTION B is the answer.

Substitute OPTION C and OPTION D. They do not satisfy the values either.

Which phrase provides the best definition of sedimentary rocks?rocks that form when a solution evaporates
rocks that act as glue to hold larger rocks together
rocks that form from materials that existed in older rocks
rocks that form from broken pieces of younger rocks

Answers

Option 3 is the best choice

Maddie bought 10 quarts of ice cream how many gallons and quarts of ice cream did madie buy explain how you found your answer

Answers

Maddie bought 2 gallons and 2 quart of ice cream. 4 quarts = 1 gallon.
4x2= 8 gallons and 2 quarts.

Maddie bought 4 quarts and 2 gallons because 4×2 is 8

How do you find the volume of a cylinder?? Step by step by step

Answers

1). Recall the formula for the volume of a cylinder:

Volume = (pi) x (radius of the round end)² x (length or height) .

2). Gather together the number you'll use for pi, the radius of the
cylinder's round end, and its length or height. Make sure that the
radius of the round end and the length or height are in the same units.
If they're not, then convert something so that they are.

3). Write each number into its place in the formula.

4). Perform the indicated operations. The final number is the
volume of your cylinder.