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3 years ago

What is the answer to 4x-5=x-23 need step by step explanation

Mathematics

1 answer:

Grace [21]3 years ago

8 0

Answer:

x=−6

Step-by-step explanation:

4x−5=x−23

Step 1: Subtract x from both sides.

4x−5−x=x−23−x

3x−5=−23

Step 2: Add 5 to both sides.

3x−5+5=−23+5

3x=−18

Step 3: Divide both sides by 3.

3x /3=-18/3

x=-6

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Quadratic functions whose zeros are -2 and -9

nika2105 [10]

Answer: f(x)= $x^{2} +11x+18$

Step-by-step explanation:

6 0

3 years ago

Each car in a rental fleet is either red or white, and there are 75 cars total. There are three more white than twice the number

professor190 [17]

Number of red cars = x
Number of white cars = y

x + y = 75
y + 3 = 2x

x + y = 75
y = 75 - x

(75 - x) + 3 = 2x
78 = 3x
26 = x

y + 3 = 2(26)
y + 3 = 52
y = 49

There are 49 white cars.

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3 years ago

Read 2 more answers

Simon and Andrew see a speed limit sign that says 65 kilometers per hour. They decide to convert this speed limit to miles per h

stealth61 [152]

Answer:

40.38912735 or about 40 miles per hour (rounded to the nearest whole number)

Step-by-step explanation:

1.) You want to convert kilometers per hour to miles per hour.

2.) There are 0.62137119 miles in 1 kilometer.

3.) Multiply 65 by 0.62137119

4.) That equals 40.38912735

5.) This answer can be rounded to 40 mph.

5 0

3 years ago

1/3x-4=3/4x+1. 12(1/3x)-4=12(3/4x) + 1. 4x -4=9x + 1. -5=5x. X = -1<br><br> Solve

jek_recluse [69]

Answer:

x=-12

Step-by-step explanation:

$\frac{1}{3}x - 4 = \frac{3}{4} x+ 1$

To remove the denominator we take LCD

LCD of 3 and 4 is 12

In the second step we multiply the whole equation by 12 not only the fractions

$12*\frac{1}{3}x - 4*12= \frac{3}{4} x*12+ 1*12$

Now the denominator gets removed

1/3 * 12 = 4 , also 3/4 times 12 = 3*3 = 9

4x - 48 = 9x + 12

Subtract 9x on both sides

-5x - 48 = 12

Now add 48 on both sides

-5 x = 60

Divide both sides by -5

so x= -12

The value of x= -12

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3 years ago

Determine if two lines are parallel or perpendicular by comparing slopes

wariber [46]

Answer:

They are parallel because they are vertical lines, and all vertical lines are parallel.

Step-by-step explanation:

5 0

4 years ago