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2 years ago

Can someone please explain to me how I'm supposed to solve 2x+y=12? Like step by step solving?

1 answer:

3 0

Well, first put the function in slop-intercept form (y = mx + b). 2x + y = 12, y - 2x = 12 - 2x, y = -2x + 12. So y = -2x + 12 is the slope-intercept form. Then graph the function to solve for all possible solutions to the function. In y = mx + b, m is the slope and b is the y intercept. In y = -2x + 12, m equals -2, so the slope is -2, and b equals 12, so 12 is the y intercept. Make a point on the y intercept at y = 12. The slope is -2, or -2/1. The graph will be sloping downward. From the point at y = 12, move down two units and to the right one unit and make another point. Then from this new point move down two units and to the right one unit and make another point, and so on. Then to extend the graph in the other direction, start at the point y = 12 and move two units up and one unit to the right and make a point there. Then from this new point move two units up and one unit to the right and make another point there, and so on.

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Find two numbers whose sum is 36 and whose defference is 10.

Vika [28.1K]

Answer:

The two numbers would be 28 and 8.

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2 years ago

Roberto ran 3/8 laps , juliette ran 2/3 laps and cora ran 1 1/4 laps. how many did they run together

ELEN [110]

Answer:

3 19/24

Step-by-step explanation:

$\frac{3}{8} + \frac{2}{3} + \frac{11}{4} = \frac{9 + 16 + 66}{24} = \frac{91}{24} = 3 \frac{19}{24 }$

hope it helps

3 0

1 year ago

1.What is the true density of water?

polet [3.4K]

$\huge\color{red}{\boxed{\tt{A}}}\color{orange}{\boxed{\tt{N}}}\color{lime}{\boxed{\tt{S}}}\color{aqua}{\boxed{\tt{W}}}\color{violet}{\boxed{\tt{E}}}\color{pink}{\boxed{\tt{R}}}\color{magenta}$

A common unit of measurement for water's density is gram per milliliter (1 g/ml) or 1 gram per cubic centimeter (1 g/cm3). Actually, the exact density of water is not really 1 g/ml, but rather a bit less (very, very little less), at 0.9998395 g/ml at 4.0° Celsius (39.2° Fahrenheit).
Water density changes with temperature and salinity. Density is measured as mass (g) per unit of volume (cm³). Water is densest at 3.98°C and is least dense at 0°C (freezing point). Water density changes with temperature and salinity.
When water is a liquid, the water molecules are packed relatively close together but can slide past each other and move around freely (as stated earlier, that makes it a liquid). Pure water has a density of 1.000 g/cm3 at 4˚ C. As the temperature increases or decreases from 4˚ C, the density of water decreases.

Step-by-step explanation:

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7 0

2 years ago

Read 2 more answers

1/3 x = 1/6<br> write answer as a fraction

garik1379 [7]

Answer:

1. Write the following as a mixed number.

2. Write as an improper fraction

3. Perform the operation and write the answer in simplest form.

a)4/7*3/11= 12/77

b)6/10 / 12/7= 7/20

c)5 1/7*3 1/9= 16

d)6 3/7 / 1 13/14= 10/3

Hope this helps

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

PLEASE ANSWER I WILL GIVE BRAINLIEST

Pachacha [2.7K]

We know that since a diameter splits a circle in half, the arcs EF, FG, and GH must add up to 180°, half the measure of a full circle. We can then use the arc addition property to create an equation using the information we know. This equation would be (10x + 8) + 67 + 11x = 180. This can be simplified to x = 5. Therefore, the value of x is 5. Now, we can simply plug in the value of x into the expressions for EF and GH. This means that the measure of EF is 58° and the measure of GH is 55°.

Hope this helps!

3 0

2 years ago