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3 years ago

I need help how to get the answer please help!

Mathematics

2 answers:

ollegr [7]3 years ago

7 0

Answer:

w=10

Step-by-step explanation:

You would have to set 5w-4=46.

5w-4=46

Add 4 to both sides

5w=50

Divide both sides by 5

w=10

Neporo4naja [7]3 years ago

6 0

Answer:

W=10

Step-by-step explanation:

5w-4 and 46 are vertical angles which means they are congruent, so you set them as equal to each other and alive from there

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Shopping at Savers Mart, Lisa buys her children 4 shirts and 3 pairs of pants for $85.50. She returns the next day and buys 3 sh

maria [59]

Answer:

price for one shirt

7.50

price for one pair of pants

18.50

Explanation:

Start by letting variables

and

represent the pieces of clothing from the problem.

Let

be the price of one shirt.

Let

be the price of one pair of pants.

Equation

85.50

Equation

115.00

You can solve for each variable by using elimination or substitution. However, in this case, we will use use elimination. First, we will solve for

, the price of each pair of pants.

To isolate for

, we must eliminate

. We can do this by making the two equations have the same

values. First, we find the LCM of

and

, which is

. Next, multiply equation

and equation

so that

and

becomes

in both equations.

Equation

85.50

(

)

(

85.50

)

256.50

Equation

115.00

(

)

(

115.00

)

460.00

Now that we have two equations with

, we can subtract equation

from equation

to solve for

256.50

460.00

−

203.50

18.50

⇒

price for one pair of pants

Now that we know that a pair of pants is

18.50

, we can substitute this value into either equation

to find price for one shirt. In this case, we will choose equation

85.50

(

18.50

)

85.50

55.5

85.50

7.50

⇒

price for one shirt

∴

, the price for one shirt is

7.50

and the price for one pair of pants is

18.50

Step-by-step explanation:

yea

5 0

2 years ago

The square root of a negative number, such as StartRoot negative 144 EndRoot, is undefined. Explain why the square root of –x, S

IRINA_888 [86]

Answer:

see the explanation

Step-by-step explanation:

we have

$f(x)=\sqrt{-x}$

we know that

The radicand of the function cannot be a negative number

$-x\geq 0$

Solve for x

Multiply by -1 both sides

$x\leq 0$

The domain of the function f(x) is the interval -----> (-∞, 0]

The domain is all real numbers less than or equal to zero

The range of the function f(x) is the interval ----> [0,∞)

The range is all real numbers greater than or equal to zero

<em>Example</em>

For x=144

$144\leq 0$ ----> is not true

This value of x not satisfy the domain

substitute

$f(x)=\sqrt{-144}$ ----> this value is undefined

For x=-144

$-144\leq 0$ ----> is true

This value of x satisfy the domain

substitute

$f(x)=\sqrt{-(-144)}$

$f(x)=\sqrt{144}$ ----> this value is defined

therefore

The function will be undefined for all those values of x that do not belong to the interval of the domain of the function

6 0

3 years ago

Read 2 more answers

Three students were given the expression shown and were asked to take a common factor out of two of the terms.

Alina [70]

Answer:

Step-by-step explanation:

6 0

3 years ago

When a trinomial is factored as (x + m)(x + n), what is the product of m and n?

klemol [59]

The answer is c the degree of the trinomial

7 0

3 years ago

Read 2 more answers

Please help

gtnhenbr [62]

A line perpendicular to y = -2x + 5 will have an equation in the form of:

y = (1/2)x + b

Since the graph must intersect (-2,9), we plug in this point to solve for b.

9 = (1/2)*(-2) + b

9 = -1 + b

10 = b

So the equation is:

y = (1/2)x + 10

The answer is A.

7 0

2 years ago