All categories

3 years ago

5x=15 y 2x=6 Son ecuaciones equivalentes? PORFAVOR AYÚDENME ES EMERGENCIA

1 answer:

mihalych1998 [28]3 years ago

5 0

Si, los dos son iguales

Cuando haces 5x=15, la división dice que x = 3. Para 2x=6 puedes usar el resultado de x=3 de la problema de antes, y cuando te usas esto va a ver que 2 de x cuando x=3 es igual a 6, y por eso 5x=15 y 2x=6 son equivalentes.

You might be interested in

Convert the following decimal or whole number to a percent 1.39

kirill115 [55]

Answer:

139%

Step-by-step explanation:

you times the decimal by 100 and you get the answer then just put a percentage sign after the number

6 0

3 years ago

Blue jeans, Inc. sells jeans that cost $15.99 for a selling price of $42.95. What is the percent of markup based on cost? (Round

trasher [3.6K]

%change=100*(final-initial)/initial

%change=100(42.95-15.99)/15.99=168.61% (to nearest hundredth of a percent)

8 0

3 years ago

Read 2 more answers

Solve 5x-7x6=7x+6=-2(x-3)

Nata [24]

Answer:

i cannot tell where the seperate numbers are and where the x is multiplication and what numbers are negative. post it agian but put spaces in beetween.

Step-by-step explanation:

remember:

PEMDAS

P- parenthases

E- exponents

M- multiplication

D- division

A- addition

S- subtraction

note:

M, D are tied so do it left to right

A, S are tied so do them left to right

3 0

3 years ago

Suppose a 95% confidence interval for μ turns out to be (1,000, 2,100). To make more useful inferences from the data, it is desi

Nat2105 [25]

Answer:

a) Increase the sample size

Step-by-step explanation:

Given that a 95% confidence interval for μ turns out to be (1,000, 2,100)

The confidence interval is formed as

$\mu+/- Margin of error$

Margin of error = critical value * std dev/sqrt of sample size

Hence for the same confidence level, we cannot change critical value.

The only available ways are either to decrease std deviation or increase the sample size to make it narrower.

If confidence level becomes higher, then confidence interval would be wider.

Here out of four options the correct option is

a) Increase the sample size

3 0

3 years ago

HELP FAST PLS

Kitty [74]

The answer should be prime. You can’t factor that polynomial

3 0

3 years ago