All categories

3 years ago

Solve the equation for x. 50(4x + 12) = 200

Mathematics

2 answers:

chubhunter [2.5K]3 years ago

6 0

Answer:

x=-2

Step-by-step explanation:

divide each term by 50, then simplify.(4x+12=4)

Move all terms not containing x to the right side of the equation.(4x=-8)

divide each term by 4 then simplify. (x=-2)

dangina [55]3 years ago

3 0

Answer:

x=-2

divide each term by 50, then simplify.(4x+12=4)

Move all terms not containing x to the right side of the equation.(4x=-8)

(x=-2)

You might be interested in

SOMEONE HELP ME PLS<br><br> Solve for x.

faltersainse [42]

Answer:

X equals 6°.

Step-by-step explanation:

There is a geometry rule that states the outer angle of a triangle's interior angle is equivalent to the sum of the remaining two interior angles of the triangle. Following this rule, you can get that (6x + 8) + (5x + 8) = 82° ⇒ 11x + 16 = 82° ⇒ 11x = 66° ⇒ x = 6°.

6 0

3 years ago

In 2008, data from the Center for Disease Control revealed that 28.5% of all male teenagers, aged 18-19 and attending U.S. colle

m_a_m_a [10]

Answer:

a) H0 : u = 28.5%

H1 : u < 28.5%

b) critical value = - 1.645

c) test statistic Z= - 1.41

d) Fail to reject H0

e) There is not enough evidence to support the professor's claim.

Step-by-step explanation:

Given:

P = 28.5% ≈ 0.285

X = 210

n = 800

$p' = \frac{X}{n} = \frac{210}{800} = 0.2625$

Level of significance = 0.05

a) The null and alternative hypotheses are:

H0 : u = 28.5%

H1 : u < 28.5%

b) Given a 0.05 significance level.

This is a left tailed test.

The critical value =

$-Z_0.05 = -1.645$

The critical value = -1.645

c) Calculating the test statistic, we have:

$Z = \frac{p' - P}{\sqrt{\frac{P(1-P)}{n}}}$

$Z = \frac{0.2625 - 0.285}{\sqrt{\frac{28.5(1-28.5)}{800}}}$

Z = -1.41

d) Decision:

We fail to reject null hypothesis H0, since Z = -1.41 is not in the rejection region, <1.645

e) There is not enough evidence to support the professor's claim that the proportion of obese male teenagers decreased.

5 0

3 years ago

A software company keeps a ratio of 2.5 testers to every 10 software developers. If the company hires 20 developer in one year,

pochemuha

Answer:

They will need to hire 5 testers.

Step-by-step explanation:

This question can be solved using a simple rule of three.

For each 10 developers, we need 2.5 testers. So how many testers are needed for 20 developers?

10 developers - 2.5 testers

20 developers - x testes

$10x = 20*2.5$

$10x = 50$

$x = \frac{50}{10}$

$x = 5$

They will need to hire 5 testers.

6 0

3 years ago

Read 2 more answers

A structure is an intersecting hip roof with the main hip roof outside dimensions being 73 ft long and the width being 30 ft wid

malfutka [58]

Answer:

35 ft

Step-by-step explanation:

See attached file for detailed solution of the given.

6 0

3 years ago

Really need help with this plsss answer

Nutka1998 [239]

Point slope form is:

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

With $y_{1}$ and $x_{1}$ being the coordinate points, and m being the slope.

So the coordinate points are (4, -5), and the slope is -6 in this case.

So just substitute everything in, to get:

y - ( -5) = -6(x - 4)

Or

y + 5 = -6 (x - 4)

3 0

3 years ago