4. A room has 20 seats - some are stools and some are chairs. Each stool has 3 legs and each chair has 4 legs.
Altogether there are 68 legs.
How many
stools are there?​

Answers

Answer 1

Answer:

There are 12 stools in the room


Related Questions

You want to walk from home to a grocery store that is3/4 miles away. You stop for a rest after 5/8 miles. How much farther do you have to walk?
Write your answer as a fraction in simplest form.

Answers

Answer:

1/8 miles

Step-by-step explanation:

You have to subtract [tex]\frac{3}{4}- \frac{5}{8}[/tex]  for the answer.

First, you gotta make 3/4 have a common denominator.

To do this multiply 3/4 by 2/2 (2/2 equals one, so value isn't changed.)

and you get 6/8.

Then you can subtract 6/8 - 5/8 to get 1/8 miles.

And there's no need to simplify 1/8.

What are the coordinates of the solution of these two linear equations

Answers

Answer:

(-2 -3)

Step-by-step explanation:

_____________________

A baseball team has won 50 games of 75 played. The team has 45 remaining games to play. How many of the remaining games must a team win in order to win 60% of the total games played during the season?

A. 20
B. 21
C. 22
D. 23

Answers

Answer:

C. 22

Step-by-step explanation:

The team played 75 games and 45 remaining.

75+45=120

60% of 120 = 0.6×120= 72

The team must win 72 games and they already won 50 games so the team has to win 72-50=22 games more.

Draw a line with the given intercepts.
X-intercept: 2
y-intercept: -1

Answers

is it like this?? hope I’m correct HAHAHAA

Answer:

Equation: y = (1/2)x - 1

Step-by-step explanation:

help it's due tomorrow

Answers

Answer:

a) 42

b) 42/120

Step-by-step explanation:

Oof, I was just about done with answering this question but I deleted it all by accident so I had to rewrite it.

Anyways, the first part of it is correct.

The second part of it is a bit harder. See, this is conditional probability, which uses the equation that I've attached below.

For Event A, you'll need the total boys / total students:

0.44166

For Event B, you'll need the total counters / total students:

0.83333

Now, plug these values into the equation. The weird U thingy is called "Union". It basically means "and".

P(A and B) / P(B)

P(0.44166 * 0.8333) / P(0.8333)

0.36803 / 0.8333

This is about 0.44165, or 53/120

What is the formula for the volume of a pyramid?​

Answers

Answer:

1/3 area of base * height

Find the surface area of the figure below

Answers

Answer:

592 cm

Step-by-step explanation:

16*10/2=80

16*10/2=80

16*12=192

10*12=120

10*12=120

Add all the sum, which would equal 592.

Hope this helps.

which expressions are equivalent to -3x+6v+7x14?

Answers

Between the 4 and the 7 is it a multiplication or an X?

If the multiplication sign, this is the solution

[tex] - 3x + 6v + 7 \times 14 \\ = 6v - 3x + 98[/tex]

The equation shown below represents a logarithmic equation of base b.
a = logb(c)
 
Which set of numbers can a represent?

A.Only numbers > 0
B. Only numbers < 0
C All real numbers except 0
DAll real numbers

Answers

Answer:

C. All real numbers except 0

Step-by-step explanation:

It is the same as " numbers > 0"

Option (A) is correct.

What is logarithmic equation?

"This equation will have all the terms but one be a logarithm and the one term that doesn’t have a logarithm will be a constant. In order to solve these kinds of equations we will need to remember the exponential form of the logarithm".

For the given situation,

The logarithmic equation, [tex]a = logb(c)[/tex]

⇒[tex]b^{c} = a[/tex]

Where a>0 , b>0 and b!=1

Thus a can represent, only numbers > 0.

Hence we can conclude that option (A) is correct.

https://brainly.com/question/1542363

#SPJ2

Pls help this is due soon

Answers

Answer:

180⁰ 8. 20⁰ 3. rays and angle

Step-by-step explanation:

need ko po ang sagot

Help me with this please?? Find the indicated side length(s) of this triangle in simplified radical form

Answers

Answer:

b = 5√6

c = 10√5

Step-by-step explanation:

This is a 30-60-90 triangle

the hypotenuse is always twice the short leg

c = 2(5√2)

c = 10√5

The long leg is alway √3 times the short leg

b = √3(5√2)

b = 5√6

Dany has 15 toys. This morning Mrs. Bahr woke up to see that Dany ruined one of her toys, so Mrs. Bahr threw it away. If now half of Dany's toys have squeakers, how many of her toys do not have squeakers?

Answers

Answer:

7 ?

Step-by-step explanation:

if im correct the total amount of toys was 15, dany broke one so thats 14. HALF of danys toys have speakers so

14 divided by 2 is 7

the answer is 7.

Answer:

7

Step-by-step explanation:

in total they were 15 toys , but 1 was thrown away. which means only 14 toys were left .

now half of the 14 toys have squeakers

so it can be calculated as :

14 ÷ 2 = 7

1/3 x 1/2 x 1/4 = V.

Answers

Answer:

Step-by-step explanation:

1*1*1/3*2*4=V

1/24=V

multiply all numerator and all denominator.

what is equivalent to 5x + 8y + 2

Answers

Answer:

(5 · x) + (8 · y) + (2 · 1)

Answer:

5x + 2 ( 4y + 1 )

Step-by-step explanation:

i just factorised 8y + 2

y=300(1+0.06/12)^12t

i need to answer. no links or I'll report ​

Answers

Well if you were to solve for y it would be “y=300•1.005^12t
-
If you were to solve for t it’d be “t=In(y/300)/12In(1.005)

The function f gives the weekly profit, in thousand dollars, that an airline makes on its flights from Boston to Washington D.C. when the ticket price is p dollars. Interpret the following.
f'(70) = 1.5
When the ticket price is _____, the weekly profit to the airline on flights from Boston to Washington is _____

Answers

Answer:

When the ticket price is $70, the weekly profit to the airline on flights from Boston to Washington is $1500.

Step-by-step explanation:

The function has the following format:

f(p)

That is, f is a function of p.

The derivative, f'(p), is the variation of f for the given value of p.

f'(70) = 1.5

p = 70, thus, ticket price of $70.

f'(70) = 1.5 means that the weekly profit to the airline on flights from Boston to Washington is 1.5 thousand dollars, that is, $1500.

Thus the correct answer is:

When the ticket price is $70, the weekly profit to the airline on flights from Boston to Washington is $1500.

Sonya has a collection of gold and silver coins.
65% of her collection consists of gold coins.
70 of her coins are silver.
What is the total number of coins in Sonya's collection?
Enter your answer in the space provided.
HELP PLEASE

Answers

Answer:

10.5

Step-by-step explanation:

65% of 70 is 45.5

So gold is 45.5 and silver is 54.5

so but45.5 + 54.5 = 100% but divide by 2

which is 50% but now we find 10% and 5%

10% = 7

5% = 3.5

now add 7 and 3.5 together

7+3.5 = 10.5

PLEASE HELPPPPPP MEEEEEEE!​

Answers

Answer:

124 students

Step-by-step explanation:

Girls participating in the exercise

4/15 x 285 = 76

Boys participating in the exercise

3/20 x 320 = 48

Total students participating

76 + 48 = 124

Find the area of a triangle with a base of 4 meters and a height of 14 meters.

Answers

Answer:

28 meters²

Step-by-step explanation:

Area of triangle = 1/2(base x height).

It is given that:

base = 4 meters

height = 14 meters

Plug in the corresponding numbers to the corresponding terms:

Area of the triangle = 1/2(4 * 14)

Area of the triangle = (4 * 14)/2

Area of the triangle = 56/2

Area of the triangle = 28 meters²

Answer:

The answer is 28 meters^2.

Step-by-step explanation:

To solve for the area of the triangle, start by using the area of a triangle formula, which is A= [tex]\frac{1}{2}[/tex] bh.

Next, plug in the information from the question into the formula. The formula will look like A= [tex]\frac{1}{2}[/tex](4)(14).

Then, solve the equation, and the final answer will be 28 meters^2.

Please help It is important

Answers

Answer:

$54

Step-by-step explanation:

first find 1/4 of $80 and then take that answer and find 10% of that to get your answer

Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work

Answers

Answer:

yes it is.

x = 4 and y = -3

Step-by-step explanation:

Solve simultaneously using elimination method:

equation 1 - equation 2

3x + y = 9 equation 1

-2x + y = 5 equation 2

_________

x = 4

plug 4 into any of the 2 equations and solve for y.

3(4) + y = 9

12 + y = 9

12-12 + y = 9-12

y = -3

Find the measure of arc TV

Answers

90 degrees
Hope this helps

Suppose the length of each side of a square is increased by 5 feet. If the perimeter of the square is now 56 feet, what were the original side lengths of the square? A. 9 ft B. 11 ft C. 14 ft D. 36 ft​

Answers

Answer:

D.  36 ft

Step-by-step explanation:

5 feet added to each of 4 sides is 20 feet

56 - 20 = 36

A manufacturer considers his production process to be out of control when defects exceed 3%. In a random sample of 100 items, the defect rate is 4% but the manager claims that this is only a sample fluctuation and production is not really out of control. At the 0.01 level of significance, test the manager's claim.

Answers

Answer:

The p-value of the test is of 0.2776 > 0.01, which means that the we accept the null hypothesis, that is, the manager's claim that this is only a sample fluctuation and production is not really out of control.

Step-by-step explanation:

A manufacturer considers his production process to be out of control when defects exceed 3%.

At the null hypothesis, we test if the production process is in control, that is, the defective proportion is of 3% or less. So

[tex]H_0: p \leq 0.03[/tex]

At the alternate hypothesis, we test if the production process is out of control, that is, the defective proportion exceeds 3%. So

[tex]H_1: p > 0.03[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.

0.03 is tested at the null hypothesis

This means that [tex]\mu = 0.03, \sigma = \sqrt{0.03*0.97}[/tex]

In a random sample of 100 items, the defect rate is 4%.

This means that [tex]n = 100, X = 0.04[/tex]

Value of the test statistic:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{0.04 - 0.03}{\frac{\sqrt{0.03*0.97}}{\sqrt{100}}}[/tex]

[tex]z = 0.59[/tex]

P-value of the test

The p-value of the test is the probability of finding a sample proportion above 0.04, which is 1 subtracted by the p-value of z = 0.59.

Looking at the z-table, z = 0.59 has a p-value of 0.7224

1 - 0.7224 = 0.2776

The p-value of the test is of 0.2776 > 0.01, which means that the we accept the null hypothesis, that is, the manager's claim that this is only a sample fluctuation and production is not really out of control.

Using traditional methods it takes 99 hours to receive an advanced driving license. A new training technique using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique on 190 students and observed that they had a mean of 98 hours. Assume the population variance is known to be 49. Is there evidence at the 0.05 level that the technique reduces the training time?
State the null and alternative hypotheses.
Find the value of the test statistic. Round your answer to two decimal places

Answers

Answer:

the aswer is 0.40 hope this helps

Step-by-step explanation:

What is the y-value when x = 8?
14
12
10
8
2.
0 2 4 6 8 10 12 14
2 6

Answers

Answer:

4

Step-by-step explanation:

go on the x-axis where you see 8

go up until you get to the line

go toward the y-axis to the left and read ( it said 4)

If Wolfgang’s Deli Shop needs 15lb of lettuce for an business, but can only use 90% due to spoilage and damage, how many lb should Wolfgang order for an evening’s business?

Answers

Answer:

13.5 pounds

Step-by-step explanation:

90% of 15 is 13.5 or if you need to round then 14 pounds of lettuce

What’s an explanation function ?

Answers

Answer:

Functional explanations are a type of explanation offered in the natural and social sciences. In giving these explanations, researchers appeal to the functions that a structure or system has.

Find the sum of the geometric series if n = 6, r= 1/4, a = 2.

Answers

Sn = a(1-r^n)/(1-r)

Sn= 8(1-1/4096)/3= 2.67

solve 5|x – 4| ≥ –10

Answers

Answer:

The statement is true for any value of x

Step-by-step explanation:

see the steps below:)

Answer:

No solution

Step-by-step explanation:

just trust me

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