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3 years ago

Why is it useful to rewrite a formula in terms of another variable?

Mathematics

1 answer:

Mazyrski [523]3 years ago

7 0

<u>It is useful so that you can show your work and know you are getting the correct answer</u>

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Write the equation of a line with slope -4/3 and passes through the y intercept (3,5)

Musya8 [376]

M= -4/3
y=mx+b
y=(-4/3)x+b
5=(-4/3)*3 +b
b= 9
y=(-4/3)x+9

6 0

3 years ago

A newspaper stand sold 1,000 copies of the city newspaper for $1,600 write and solve an equation to find the price of one copy

Vsevolod [243]

Answer: $\$1.6$

Step-by-step explanation:

Let be "x" the price in dollars of one copy of the city newspaper.

You need to analize the information provided in the exercise:

1. The total number of copies of the city newspaper sold in the newspaper stand is:

$Total\ copies=1,000$

2. The amount of money earned by selling 1,000 copies of the city newspaper is:

$Total\ earned=\$1,600$

Then, you can determine that the value of "x" can be found with:

$x=\frac{Total\ earned}{Total\ copies}$

3. Finally, substituting values, you get:

$x=\frac{\$1,600}{1,000}\\\\x=\$1.6$

7 0

3 years ago

I really don't understand this. plzz help

Vsevolod [243]

Answer:

x = 25

Step-by-step explanation:

In any triangle, the sum of all 3 angles is ALWAYS 180 degrees. So we can make this into an equation.

4x + 2x+ 10 + x - 5 = 180

Now we combine the like terms.

7x + 5 = 180

Subtract 5 from both sides.

7x = 175

Now divide by 7 on both sides.

x = 25

8 0

4 years ago

Best answer gets brainliest

tamaranim1 [39]

Answer:

is mine the best answer

Step-by-step explanation:

please say it is

8 0

3 years ago

I need help fast plz!!!

Liula [17]

Answer:

26, 64

Step-by-step explanation:

we have :

angle 90°

acute angle x

acute angle 2(x+6)

The sum of the angles in a triangle has to be 180° so

90 +x+2(x+6) = 180

90 +x +2x+12 = 180

3x = 180 -90-12

x= 78/3 = 26°

the other acute angle is 2(26+6) = 64°

6 0

3 years ago

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