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Brut [27]
2 years ago
9

Evaluate 3x+y when x=1/3 and y=−7/4. Write your answer as a fraction in simplest form.

Mathematics
1 answer:
SOVA2 [1]2 years ago
6 0

Answer:

3x+y

=3*1/3-7/4

=1-7/4

=(4-7)/4

=-3/4

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At Sandy's Beauty Salon, a haircut costs $15.00 and a permanent costs $30.00. Which graph represents the amount of revenue the s
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y=15x

Step-by-step explanation:

revenue=cost of hair cut(number of haircuts)

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Find the percent change from the first value to the second 50;30
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Answer:

-40%

Step-by-step explanation:

NV = new value

OV = old value

percent change = (NV - OV)/(OV) × 100%

percent change = (30 - 50)/(50) × 100%

percent change = -20/50 × 100%

percent change = -40%

5 0
2 years ago
Is 0.6 60 and 6 equal?
quester [9]

Answer:

Yesss

Step-by-step explanation:

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The credit card industry works similar to the cigarette industry. what reasons caused culture to change its view of cigarettes o
tankabanditka [31]

The credit card industry and cigarette industry are very similar in terms of negative influence on personal finances.

<h3>What is credit card?</h3>

A credit card is a sort of payment card that uses a line of credit rather than the account holder's cash deposits to make purchases.

Tobacco use can have a negative impact on personal finances due to the sheer high price of tobacco products, wasted pay owing to sickness absence, plus hospitalization rates due to the higher risk of illness associated with smoking use.

If you let that debt grow, you may find that the amount of interest you owe equals or even exceeds your original principal, forcing you to spend a lot just to pay it off.

Thus, the credit card industry and cigarette industry are very similar in terms of negative influence on personal finances.

Learn more about the credit card here:

brainly.com/question/27350251

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5 0
2 years ago
The American Psychological Associated conducted a survey in 2003 of psychologists to estimate the average incomes for psychologi
Alex Ar [27]

This question is incomplete, the complete question;

The American Psychological Associated conducted a survey in 2003 of psychologists to estimate the average incomes for psychologists based on their academic degree and years of experience. 36 psychologists responded who had a just received their masters degree in 2003. The average was $48,800 with a standard deviation of $16,800.

The 95% Confidence Interval is ($, $ )

Answer:

at 95%, confidence interval is ( $43312, $54288 )

Step-by-step explanation:

Given the data in the question;

sample size n = 36

mean x' = 48,800

standard deviation σ = 16,800

at 95% confidence level;

∝ = 1 - 95% = 1 - 0.95 = 0.05

∝/2 = 0.05 / 2 = 0.025

z critical value, Z_{\alpha/2 = 1.96

now, confidence interval for population mean is given by the formula

x' ±  Z_{\alpha/2( σ/√n )

so we substitute

⇒ 48800 ±  1.96( 16800/√36 )

⇒ 48800 ±  1.96( 2800 )

⇒ 48800 ±  5488

⇒ 48800 -  5488, 48800 +  5488

⇒ ( 43312, 54288 )

Therefore, at 95%, confidence interval is ( $43312, $54288 )

6 0
2 years ago
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