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3 years ago

5(x+2)=⅗ (5+10x) how do i solve

Mathematics

1 answer:

Mumz [18]3 years ago

4 0

Answer:

Step-by-step explanation:

5(x+2)=⅗ (5+10x) - distribute 5*x= 5x 5*2=10 3/5*5= 3 3/5*10x=6x

5x+10= 3+6x

-5 -5

10=3+1x

10=3+x

-3 -3

7=x

hope this helps!

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4. Each pail of plaster covers 90 square feet of ceiling. What is the least number of pails of plaster you would need to buy to

8090 [49]

Answer:

3 pails

Step-by-step explanation:

The square room's base is 14 x 14 = 196

You need to fill the whole room so you might get extra

so... 196 / 90 = 2.177777778

which means you will need 3 and you will have extra

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2 years ago

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If 1=15 and 6=20 what is 3

erma4kov [3.2K]

Answer:

if 1=15 and 6=20 what is 3

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3 years ago

How to simplify 6 to the power of -1 over -8 to the power of 0

neonofarm [45]

Answer:

$\frac{1}{6}$

-8 to the power of 0 = 1

(Anything to the power of 0 = 1)

and 6 to the power of -1 = 1/6

( Any number to the power of a negative number will become a fraction)

Example.

$5^{ - 3} = \frac{1}{5^{3} }$

So is will be 1/6 over 1

Which gives you your final answer.

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3 years ago

What property is -3(m+8)=-3m-24

Damm [24]

Answer:

All real numbers are solutions.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−3(m+8)=−3m−24

(−3)(m)+(−3)(8)=−3m+−24(Distribute)

−3m+−24=−3m+−24

−3m−24=−3m−24

Step 2: Add 3m to both sides.

−3m−24+3m=−3m−24+3m

−24=−24

Step 3: Add 24 to both sides.

−24+24=−24+24

0=0

Answer:

All real numbers are solutions.

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3 years ago

Which statement must be true?<br><br> a<br> b<br> c<br> d

lozanna [386]

ANSWER

$\boxed {m \ne0}$

EXPLANATION

The given function is

$f(x) = mx + b$

We need to find the inverse of this function,

Let

$y= mx + b$

We interchange x an y to obtain,

$x = my + b$

We solve for y now to obtain,

$x - b = my$

We divide through by m to get,

$\frac{x - b}{m} = y$

Hence the inverse function is ,

${f}^{ - 1} (x) = \frac{x - b}{m}$

For this inverse to exist, the denominator must not be equal to zero,

Thus

$m \ne0$

The correct answer is A.

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