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3 years ago

In the table below, x represents the miles traveled and y represents the cost to travel by train.

Mathematics

2 answers:

valentinak56 [21]3 years ago

4 0

Answer:

Step-by-step explanation:

Fudgin [204]3 years ago

3 0

Answer:

2.25

Step-by-step explanation:

to find slope it is (y2-y1)/(x2-x1)

(15.25-8.50)/(5-2)

6.75/3

2.25 is the slope

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To find a reciprocal of a fraction, switch the numerator and denominator.

Aleks [24]

The reciprocal of -1/3 is -3/1
and the reciprocal of 4/1 is 1/4

6 0

3 years ago

The side of the parallelogram in the figure above are given in cm.

GrogVix [38]

solution

or, 2 x + y = 5 y - 8 being opposite side of

parallelogram

or , 2x =5 y - y - 8

or, 2x = 4 y - 8

or, x = 4y - 8/2

or,. x = 2y- 4

therefore, 2x + y is equal to 5 y - 8 Being the opposite side of a parallelogram

now,

3y + 2 x is equal to 4x - 3 being opposite side of a parallelogram

or, 3y + 2 x-4x = -3

or,. 3y -2x = -3

5 0

3 years ago

A student started solving the system of equations by elimination and made a mistake in solving x. What is the error?

Lorico [155]

Answer is A.

step 1 , 16 was not multiplied by 9
should be

54x - 9y = 144

5 0

3 years ago

PLEASE HELP WILL GIVE BRAINLIEST Answer all parts of the question please!

Schach [20]

A: l x w = a formula for area
l = w + 48 length
w(w+48) = 3024 substitute l with w+48
w^2 + 48w -3024=0 —solution to part A

B: w^2 + 48w - 3024 = 0 factor
(w-36)(w+84) = 0
Solutions for width = 36,-84
A width can’t be negative, so the width is 36 inches

7 0

2 years ago

Solve for q. -5(3-q) +4=5q-11

soldier1979 [14.2K]

Perform the indicated multiplication first: -15 + 5q + 4 = 5q - 11

Note that 5q appears on both sides of this equation. Cancelling, we get :

-11 = -11. This is always true. Thus, -5(3-q) +4=5q-11 is true for all q.

4 0

3 years ago