-5= (8m +12) / (4) solve

Answers

Answer 1

Answer: $-5= (8m+12)/(4) ............-20= 8m+12....... 8m=-32....... m= -4$

Answer 2

Answer: $-5=(8m+12)/(4)\n-5=2m+3\n2m=-8\nm=-4$

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a box of 10 markers weighs 105 grams. if the empty box weights 15 grams, how much does each marker weigh?

Answers

first, ,how much do all the markers weight? the box with the markers weights 105, so without the box all the markers weigh 105-15=90 grams.

so 90 grams is the weight of 10 markers together, and each of them will weigh one tenth of this: 90/10=9

so each marker weights 9 grams.

Final answer:

The weight of each marker can be found by first subtracting the weight of the empty box from the total weight to get the weight of all markers, then dividing by the number of markers. Each marker weighs 9 grams.

Explanation:

Firstly, we can find the total weight of the markers by subtracting the weight of the empty box from the total weight of the box with the markers. Doing this calculation (105 grams - 15 grams) gives us the total weight of the markers, which is 90 grams. As there are 10 markers, we can find the weight of each marker by dividing the total weight of the markers by the number of markers. This calculation (90 grams / 10) results in each marker weighing 9 grams.

Learn more about Weight Calculation here:

brainly.com/question/34192869

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A car that travels along the highway to Denver at a steady speed. When it begins, it is 300 miles from Denver. After 3 hours, it is 180 miles from Denver. Which function describes the car's distance from Denver?

Answers

Answer: $y=-40x+300$

Step-by-step explanation:

This car follows a line, hence its motion can be modeled by the Line equation.

In fact, we already have two points of the line, if we call $x$ the time in hours and $y$ the traveled distance in miles:

Point 1: $(x_(1),y_(1))=(0,300)$

Since we are told the car's initial position is 300 miles in the time 0 h

Point 2: $(x_(2),y_(2))=(3,180)$

Since we are told the car's final position is 180 miles after 3h

Let's find the Slope $m$ :

$m=(y_(2)-y_(1))/(x_(2)-x_(1))$

$m=-40$ This is the slope of the line

Now, the equation of the line is:

$y=mx+b$

We already know the slope, now we have to find the intersection point with the y-axis ( $b$ ) with any of the given points. Let's choose Point 1: $(x_(1),y_(1))=(0,300)$

$300=-40(0)+b$

Isolating $b$ :

$b=-300$

Then, the equation of the line is:

$y=-40 x+300$

Answer:

y=-40x-300

Step-by-step explanation:

A cylinder has a base diameter of 18ft and a height of 16ft. What is its volume in cubic ft, to the nearest tenths place?

Answers

Answer:4073 cubic feet

Step-by-step explanation:

VOLUME OF A CYLINDER

V=Πr²h

radius = diameter/2 =18/2 =9ft

V= 22/7 × 9² × 16

=28512/7

=4073.14

V= 4073 cubic feet to the nearest tenth

What is 734 round to the nearest ten?

Answers

730, because if the ones is less than five, you round down. Please hit the brainliest answer button if you like my answer.

Please answer and put how

Answers

6 + m/4 = 3 (subtract 6 from both sides)
m/4 = -3 (multiply both sides by 4)
m = -12

Can plug in to original equation to check work:
6 - 12/4 = 3
6 - 3 = 3
3 = 3

The answer m = -12 checks out

first you write out the equation
subtract 6 from both sides
then multiply both sides by 4
because if you multiply something to one side you have to do it to the other one too
m = -12
you can then check work like this
6 - 12/4 = 3
6 - 3 = 3
3 = 3

(m = -12 subtract 6 from both sides)
(m/4 = -3 then you multiply both sides by 4)

The exponential function f(x) = 215e^0.0325x models the Siberian tiger population of China, f(x), x yearsafter 1990. If this trend continues, predict the Siberian tiger’s population in Chins in the year
2030.

Answers

Answer:

They are both linear

Step-by-step explanation:

i did it on khan academy

Answer:

789 Siberian tigers

Step-by-step explanation:

2030 = 40 years after 1990, so...

215 * e^(.0325*40) =

215 * e^1.3 =

788.89878405, which is approx. 789

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