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2 years ago

The poduct of 10 and a number is 3 less than the number

Mathematics

1 answer:

Oxana [17]2 years ago

3 0

Answer:

Step-by-step explanation:

10 x = x - 3 Subtract x from both sides

10x - x = - 3 Combine like terms on the left

9x = - 3 Divide both sides by 9

9x/9 = -3/9

x = - 1/3 or x = - 0.333333

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The circumference of a circle is 60 cm. What is the diameter

Mariana [72]

Using the formulas

C = 2πr

d = 2r

Solving for 'd' (diameter)

d = C

π = 60

π ≈ 19.09859cm

7 0

2 years ago

Solve |4 - 2x| = |3x + 2|.

Vladimir79 [104]

Answer:

Step-by-step explanation:

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2 years ago

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PLEASE HELPPPP MEEEE!! first gets brainliest

jeka94

(-2.9a + 6.8) + (4.4a - 7.3)
= -2.9a + 6.8 + 4.4a - 7.3
Combine like terms. All "a" terms can only be added to other "a" terms, and all non variable terms can only be added to other non variable terms.
= 1.5a - 0.5

Final Answer: D. 1.5a - 0.5

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2 years ago

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Find the equation of a line that contains the points (−5,−7) and (−8,0).

kifflom [539]

Answer:

$y=\frac{-7}{3}x-\frac{56}{3}$

Step-by-step explanation:

first find the slope using the slope formula

$slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$(x_{1},y_{1})=(-5,-7)$

$(x_{2},y_{2})=(-8,0)$

plug in

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{(0)-(-7)}{(-8)-(-5)}=\frac{0+7}{-8+5}=\frac{7}{-3}=\frac{-7}{3}$

m = -7/3

and using point slope form

$y-y_{1}=m(x-x_{1})$

$y-(-7)=(\frac{-7}{3})(x-(-5))$

$y+7=(\frac{-7}{3})(x+5)$

$y=\frac{-7}{3}x-\frac{35}{3}-7$

$y=\frac{-7}{3}x-\frac{35}{3}-\frac{21}{3}$

$y=\frac{-7}{3}x-\frac{56}{3}$

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2 years ago

Use substitution. What is the solution to the system of equations? y=1/2x+2 2y=x+4

morpeh [17]

Answer: Infinitely many solutions.

Step-by-step explanation:

$y=\frac{1}{2}x+2\\2y=x+4\\$

Use $\frac{1}{2} x+2$ for y in $2y=x+4$

$2(\frac{1}{2}x+2)=x+4\\x+4=x+4\\x-x = 4-4\\0=0$

Infinitely many solutions.

4 0

2 years ago