Please help me?
8 + 12 ÷ ( 4 - 2 )​

Answers

Answer 1

Answer:

14

Step-by-step explanation:

Use PEMDAS to start with parantheses and then divide and then add

Answer 2

Answer

Step-by-step explanation:


Related Questions

Please help me find the answer

Answers

Answer:

Translation And Rotation I believe!

Step-by-step explanation:

Write a percent between 25% and 50%.
Then write it as a decimal and as a fraction in simplest form.

Answers

Percent - 24%

Decimal - 0.24

Fraction - 24/100=6/25

If 8 tennis balls cost $24, how much do 12 tennis balls cost?


Answers

Answer:

36

Step-by-step explanation:

half of 8 is 4 so half of 24 is 12 and 12 plus 24 is 36

Answer:

$36

Step-by-step explanation:

First divide the $24 to find how much each tennis ball costs.

24 / 8 = 3

Then multiply 3 (the cost per tennis ball) by 12 (the amount of tennis balls)

3 x 12 = 36

36 is your answer

Find the slope of the line

Answers

Answer: m = -3/2

Step-by-step explanation: In algebra, we use the word slope

to describe how steep a line is and slope can be found using

the ratio rise/run between any two points that are on that line.

Let's start from the point (0, 0).

From this point, we go down 3 units and to the right 2 units.

So our rise is -3 and our run is 2.

So our slope or rise/run is -3/2.

The variable that's used to represent slope is m.

So we say that m = -3/2

Answer:

-3/2

Step-by-step explanation: Rise 3 from the first (lower) dot then run 2 to the higher dot. Its negative because it is going down from left to right.

Graph two lines whose solution is (1,4)

Answers

Answer:

(1,4) and (0,-1)

I really don’t understand this question I put a picture in

Answers

Answer:

The answer is 1 4 and the last one

Step-by-step explanation:

In one day's work at the nursery, Dale and Mary together potted 74 plants. If Dale potted 48 , how many did Mary pot?

Answers

Answer: Mary potted 27 plants.

Step-by-step explanation:

A new campus was built on a 1100-acre plot of land. How many square miles does it cover? Round to two decimal places, if necessary.

Answers

Answer:

Step-by-step explanation:

2.66

3 2/3 x 3/4 multiply fractions pls I don’t have much time!

Answers

Answer:

2.75

hope you get a 100!!

Many studies have found an association between red meat consumption and an increased risk of chronic diseases. What is the relationship between red meat consumption and mortality? A large study followed 120,000 men and women who were free of coronary heart disease and cancer at the beginning of the study. Participants were asked detailed questions about their eating habits every four years, and the study spanned almost 30 years. It was found that the risk of dying at an early age—from heart disease, cancer, or any other cause, rises with the amount of red meat that they consumed.
A. Is this an observational study or an experiment?This is an observational studyThis is an experimentB. What are the explanatory and response variables?The explanatory variable is:____A. Red meat consumption.B. Whether or not a subject dies.The response variable is:____A. Red meat consumption.B. Whether or not a subject dies.

Answers

Answer:

1. This is an observational study.

2. The explanatory variable is A. red meat consumption

3. The response variable is B. Whether or not a subject dies.

Step-by-step explanation:

1. An observational study is a type of study where the researcher would observe the effects and he would also make no attempt to change the outcome

2. The explanatory variable is also called the independent variable and in this case it is red meat consumption because it is what would be used to predict the dependent variable

3. The response variable is known as the dependent variable it is our variable of interest. It is what the researcher is trying to find out. In this case the answer is whether or not the subject dies

Find the distance between the pair of points. (2,-5) and (7,7)

Answers

Answer:

5,12

Step-by-step explanation:

because 7-2 is 5 and it would take 12 to get to 7


Billy worked 68 hours this week at his job. He worked 4 hours less than 3 times
the hours he worked last week "w". What expression can be used to solve this
problem?

Answers

Umm subtraction or division

Answer:

3w-4 = 68

Hope this helped!

I have a picture I really need help with math please someone

Answers

Step-by-step explanation:

6 goes in ones or the green

3 goes in tenths or the yellow

2 goes in hundreths or the purple

4 goes in thousands or the orange

Answer: 6 goes in the ones then the 3 goes tenths 2 in hundredths and 4 in the thousands

eight hundredths six tens three ones decimal one tenths four hundredths one thousand

Step-by-step explanation:

A coffee manufacturer is interested in the mean daily consumpiton of regular-coffee drinkers and decaffeinated-coffee drinkers. A random sample of 50 regular-coffee drinkers showed a mean of 3.84 cups per day. A sample of 40 decaffeinated-coffee drinkers shoed a mean of 3.35 cups per day. The sample stnadard deviation for those drinking regular coffee is 1.20 cups per day an 1.36 cups per day for those drinking decaffeinated coffee. Assume the population standard deviations are euql. At the 5% significance level, is the mean daily consumption of reglar-coffee drinkers greater than that of decaffeinated-cofee? Find the p-value for this hypothesis test.

Answers

Answer:

The decision rule is  

Reject the null hypothesis

The conclusion

There is sufficient evidence to conclude that mean daily consumption of regular-coffee drinkers greater than that of decaffeinated-coffee.

The p-value  is  [tex]p-value  = 0.03682 [/tex]

Step-by-step explanation:

From the question we are told that

   The first sample size is  [tex]n_ 1 = 50[/tex]

   The first sample mean is [tex]\=x_1  =  3.84[/tex]

The first sample standard deviation is  [tex]s_1  = 1.26[/tex]

    The second sample size is  [tex]n_2  =  40[/tex]      

   The second  sample mean is   [tex]\=x_2  =  3.35 [/tex]

    The second sample standard deviation is [tex]s_2  =  1.36[/tex]

    The level of significance is  [tex]\alpha =  0.05[/tex]

The  null hypothesis is  [tex]H_o  :  \mu_1  = \mu_2[/tex]

The alternative hypothesis is  [tex]H_a  :  \mu_1  >  \mu_2[/tex]

Generally the test hypothesis is mathematically represented as

 [tex]t =  \frac{( \= x_1 - \= x_2 ) - 0}{ \sqrt{ \frac{s^2_1 }{n_1}  + \frac{s^2_2}{n_2} } }[/tex]

=>  [tex]t =  \frac{( 3.84 - 3.35  ) - 0}{ \sqrt{ \frac{1.26^2 }{50}  + \frac{1.36^2}{40} } }[/tex]

=>   [tex]   t =  1.789  [/tex]      

Generally the p-value is mathematically represented as

      [tex]p-value  =  P(t > 1.789)[/tex]

From the z table  

    [tex]\Phi (1.789) =  0.03682[/tex]

So

   [tex]p-value  =  P(t > 1.789) =  0.03682 [/tex]

From the value obtained we see that [tex]p-value < \alpha[/tex] hence

The decision rule is  

Reject the null hypothesis

The conclusion

There is sufficient evidence to conclude that mean daily consumption of regular-coffee drinkers greater than that of decaffeinated-coffee

 

     

Can you explain how to divid fractions so I can help my daughter.
3/8 ÷ 2/3=

Answers

Answer: 9/16

Explanation: When dividing by a fraction, we can change

the division sign to multiplication and flip the second fraction.

So 3/8 ÷ 2/3 means the same thing as 3/8 · 3/2.

So when dividing by a fraction, we can just multiply

by the reciprocal of that fraction or that fraction flipped.

Now multiplying across the numerators and denominators, we have 9/16.

Since 9/16 is in lowest-terms, it's or final answer.

Work out an equation of the straight line with gradient 3 that passes through the point with coordinates (2, 4).

Answers

Answer:

The answer is

[tex] \huge \boxed{y = 3x - 10}[/tex]

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

where

m is the slope

( x1 , y1) is the point

From the question the point is (2, 4) and the slope is 3

The equation of the line is

[tex]y - 4 = 3(x - 2) \\ y + 4 = 3x - 6 \\ y = 3x - 6 - 4[/tex]

We have the final answer as

[tex]y = 3x - 10[/tex]

Hope this helps you

Write an
equivalent unit rate
to selling 15
cookies in 1/8 of an
hour.

Answers

Answer:

y=1/8x + 15

Step-by-step explanation:

y=1/8x+15 because 1/8 hours and add 15

Simplify: 25 × {8 – (21 ÷ 3)} + 18

Answers

Answer:

I solved it and my answer is 43

Step-by-step explanation:

25×{8- (7)} +18

25 (1) +18

25×1=25

25+18=

43

XANDER TRAVELED 8,568 MILES IN 17 DAYS. ON AVERAGE HOW MANY MILES PER DAY DOES HE TRAVEL

Answers

Answer:

504 Miles per day

8,568 / 17 = 504

Step-by-step explanation:

whats -4+1 is it -3?

Answers

Answer: YES

Step-by-step explanation:

Answer:

the corrects answer is -3

Step-by-step explanation:

Which ordered pairs are solutions to the equation x + 6y = 4?

Answers

Answer:

24

Step-by-step explanation:

For example, the ordered pair x + 6y = 4 answer is 24

The required ordered pair is the solution of the equation x + 6y = 4 is (1, 1/2).

What is the equation?

The equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.

Here,
Given equation,
x + 6y = 4,

In order to determine the ordered pair for the given equation, we must assign the value of the one variable, so the satisfied value of the other value of the independent variable will be determined, and the pair will be said to be the required ordered pair.

Now,
Put x = 1
1 + 6y = 4
y = 4 -1 / 6
y = 1/2

Thus, the required ordered pair is the solution of the equation x + 6y = 4 is (1, 1/2).

Learn more about equations here:

brainly.com/question/10413253

#SPJ5

If Steve paid back $7,945 on a $7000 simple interest loan after 3
years. What was the interest rate?

Answers

Answer:

interest rate= 4.5%

Step-by-step explanation:

steve paid back=7945

loan------------------7000

total interest for 3 years=945

for one year-----------------=315

rate of interest= (315 X 100)/7000= 4.5%

If you get 80% correct on your quiz and you get 16 questions right what was the total number of the questions on the quiz

Answers

there would have been 20 questions if you got an 80%. 16 out of 20=80

graph the equation y = 4x -2.

Answers

I have attached the graph

A variable star is one whose brightness alternately increases and decreases. For one such star, the time between periods of maximum brightness is 4.5 days, the average brightness (or magnitude) of the star is 5.4, and its brightness varies by ±0.30 magnitude. Find a function that models the brightness of the star as a function of time (in days), t. (Assume that at t = 0 the brightness of the star is 5.4 and that it is increasing.)

Answers

Answer:

f(t) = 5.4 + 0.3sin (2π/4.5t)

Step-by-step explanation:

See attachment

Please need help thank you

Answers

Answer:

People drank 75 cups, First find the amount of juice that Mrs. Jackson bought .Then subtract the 3 cups of juice that were left over

5 x 16=80

80-3= 77

1A. We draw five cards at random with replacement, keeping track of whether or not each card in the sequence is a club. Find the probability of the following sequence: Club, Not Club, Club, Not Club, Not Club, i.e. CNCNN.
B. Notice that all sequences of 5 cards with exactly two clubs have the same probability. Based on this fact and your result in a), find the probability of getting exactly 2 clubs in a sequence of 5 cards drawn at random with replacement from a 52 card deck.

Answers

Answer:

135/512

Step-by-step explanation:

In a deck of card, there are 13clubs.

A deck of card contains 52cards

Total clubs = 13cards

Probability of selecting a club and replacing is expressed as P(C) = total number of clubs/total card

P(C) = 13/52 = 1/4

q = 1-p

q = 1-1/4

q =3/4

Let X be probability function used is a binomial distribution formula expressed as:

Since 5cards is drawn at random, n = 5

P(X = x) = nCx q^(n-x)p^x

P(X = x) = 5Cx 3/4^(5-x)•(1/4)^x

The probability of the sequence is expressed as:

P(X = x) = 5Cx 3/4^(5-x)•(1/4)^x

x is the number of clubs present

b) To find the probability of getting exactly 2 clubs in a sequence of 5 cards drawn at random with replacement from a 52 card deck, we will substitute x = 2 into the probability function in (a) a shown;

P(X = 2) = 5C2•3/4^(5-2)•(1/4)^2

P(X = 2) = 5C2•3/4^(3)•(1/4)^2

P(X = 2) = 5C2•27/64•(1/16)

P(X = 2) = 5C2•27/1024

P(X = 2) = 5!/(5-2)!2!•27/1024

P(X = 2) = 5!/3!2!•9/1024

P(X = 2) = 5×4×3!/3!2•27/1024

P(X = 2) = 5×4/2•27/1024

P(X = 2) = 10•27/1024

P(X = 2) = 135/512

Hence the probability of getting exactly 2 clubs in a sequence of 5 cards drawn at random with replacement from a 52 card deck is 135/512


PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((

Answers

Use the power of the base of 10 which to make it easier
10x10x10= 1000
I hope this helps :)!

The Andersons rented 5 rectangular tables for $35 and 30 chairs for $60. Which quotients can be used to calculate the unit cost for tables and the unit cost for chairs? Check all that apply.
StartFraction 5 Over 35 EndFraction
StartFraction 35 Over 5 EndFraction
StartFraction 60 Over 30 EndFraction
StartFraction 30 Over 60 EndFraction

Answers

Answer:

35/5 and 60/30

Step-by-step explaning

i got it right on enginuity

Answer:

35/5 and 60/30

Find the product of (x-13)(x+3)

Answers

[tex](x - 13)(x + 3) \\ = x {}^{2} + 3x - 13x - 39 \\ = x {}^{2} - 10x - 39 [/tex]

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