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3 years ago

How to solve 4x+8/2=10? (As in, 4x+8 over 2 equals 10)

2 answers:

8 0

You first want to reduce the fraction. So you have 4x+4=10. Then, you want to move the constant to the right and change its sign, so you have 4x=10-4. Then subtract the numbers, and you now have 4x=6. Finally, divide both sides by 4 in order to isolate the variable. The answer is 3/2 or 1.5 (Written in decimal form). Hope this helped you out.

DENIUS [597]3 years ago

3 0

This is how you solve the problem

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3. Sam and Tim each have savings accounts. Every month they each put in some of their

Setler [38]

Answer:

$y = 30x +50$ --- Sam

$y = 20x +80$ --- Tim

Step-by-step explanation:

Given

Sam Tim

х --- f(x) --------------- g(x)

1 --- 80 --------------- 100

2 --- 110 --------------- 120

3 --- 140 --------------- 140

4 --- 170 -------------- 160

Required

Determine the y value

y value implies the equation of the table

Calculating the equation of Sam

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,80)$

$(x_2,y_2) = (4,170)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{170 - 80}{4 - 1}$

$m = \frac{90}{3}$

$m = 30$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 80 = 30(x - 1)$

$y - 80 = 30x - 30$

Make y the subject

$y = 30x - 30 + 80$

$y = 30x +50$

Calculating the equation of Tim

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,100)$

$(x_2,y_2) = (4,160)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{160 - 100}{4 - 1}$

$m = \frac{60}{3}$

$m = 20$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 100 = 20(x - 1)$

$y - 100 = 20x - 20$

Make y the subject

$y = 20x - 20+100$

$y = 20x +80$

7 0

3 years ago

-6x-7=3x+11 how to solve this problem

Shalnov [3]

You have to get the x to one side so you'll subtract 3x from -6x and 3x from 3x, the 3x will cancel out and -6x - 3x is -9x-7=11, you have to add 7 from both sides the 7+7 cancels out and also add 11+7 which leaves -9x=18, you have to divide -9x/-9 and do 18/-9, which gets you x=-2. Here's the work shown if you didn't what i said...
-6x-7=3x+11
-3x -3x
-9x-7=11
+7 +7
-9x=18
-9 -9
x=-2

6 0

3 years ago

Find the value of x. Then the measure of each angle

Shtirlitz [24]

The interior angles of a triangle must add to 180 degrees.

110+5x+2x=180
110+7x=180
7x=70
x=10

Then plug in the x value into each angle expression
5(10)=50 degrees
2(10)=20 degrees

4 0

3 years ago

Enter the y-intercept of the function

Advocard [28]

The y intercept is (0 , 9)

when x is zero, the number in the y value is the y-intercept

8 0

3 years ago

There are 75 Skittles in the bowl and you know that 15 of them are green, your favorite flavor (strawberry!) What is the probabi

Naya [18.7K]

Answer:

chances are 1/10. Can you please make me brainliest?

Step-by-step explanation:

divide 75/15, get 5, multiply by 2, get 10, so chances are 1/10

8 0

3 years ago