There are 35 boys in the sixth grade. The number of girls in the sixth grade is 42. Lonnie says that means the ratio of the number of boys in the sixth grade to the number of girls in the sixth grade is 5: 7. Is Lonnie correct?

Answers

Answer 1
lonnie is incorrect. this is because 7 x 7 equals 49 and not 42.

Related Questions

What does this even mean??? I accidentally went on college

Answers

Answer:

I think what the teacher wants is for you to calculate it and then put said calcuated number on number line

Step-by-step explanation:

FOR EXAMPLE: if the DIFFERENCE is 7, put 7 on the number line

I think the greatest number

help please (see below)

Answers

Answer:

The quotient is 10x + 16

The remainder is [tex]28x^2 + 10x +22[/tex]

A scuba diver dives until he is 45 ft below sea level. His friend is at -12 ft. How many feet are they away from each other?

Answers

Answer:

33

Step-by-step explanation:

45 - (-12) = 33

His friend is 33ft away from him.

A landlord is considering upgrades and repairs, including wood floors, kitchen tile, a new back door, and a repaired garage door. The landlord could do these things himself or hire a contractor. The contractor could finish the job in half the time but would charge more. The landlord wants to leave the choice of whether to actually upgrade the kitchen tile up to the optimization algorithm. How should this constraint be written if he uses the following scheme for decision variables? x1 = contractor works on wood floors x2 = landlord works on wood floors x3 = contractor works on kitchen tile x4 = landlord works on kitchen tile x5 = contractor works on back door x6 = landlord works on back door x7 = contractor works on garage door x8 = landlord works on garage door Group of answer choices x3+ x4≤ 1 x3+ x4= 1 x3- x4= 1 x3- x4≤ 1

Answers

Answer:

x3 + x4 ≤ 1

Step-by-step explanation:

Upgrades considered = wood floors, Kitchen tile, New back door and a repaired garage

The constraint of whether to upgrade the kitchen either by the landlord or by  a contractor can be represented with the scheme below:

x3 + x4 ≤ 1

The constraint is written this way because  only one scheme can be used at a time i.e when x3 = 1 , x4 = 0 and vice versa. also

note that both x3 and x4 can be = 0.  because the upgrade of the kitchen tiles is under probability and the landlord might decide not to upgrade the kitchen tiles hence both schemes ( x3 and x4 ) can be = 0

The ground temperature at an airport is 16 °C. The temperature decreases by 5.4 °C for every increase of 1 kilometer above the ground. What is the temperature outside a plane flying at an altitude of 5 kilometers?

Answers

Answer:

-11

Step-by-step explanation:

find the value ofx in the equation 3x+1=×+9.​

Answers

Answer:

x = 4

Step-by-step explanation:

First, you subtract 1 from both sides, giving you 3x = x + 8

Then you subtract 1x from both sides, so 2x = 8

Divide the 2 from both sides which leaves you with the answer, x = 4

What is the answer to 6.59+(-7.8)-(2.41)=

Answers

The answer is -3.62... hope it helps! :)

Two numbers add up to 64. One of the numbers is 24. What is the other number?​

Answers

Answer:

40

Step-by-step explanation:

If there are two numbers and you're trying to find the other one, you can subtract 64 and 24, you would get 40

Check; 40 + 24 = 64

10. According to a survey, about 58% of families sit down for a fumily dinner at least four times per week. You ask 5 randomly chosen families whether they have a family dinner at least four times per week.

a. Draw a histogram of the binomial distribution for the survey.
b. What is the most likely outcome of the survey?
c. What is the probability that at least 3 families have a family dinner four times per week?​

Answers

Step-by-step explanation:

Use binomial probability:

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

Given n = 5, p = 0.58, and q = 0.42.

P(0) = ₅C₀ (0.58)⁰ (0.42)⁵⁻⁰ = 0.013

P(1) = ₅C₁ (0.58)¹ (0.42)⁵⁻¹ = 0.090

P(2) = ₅C₂ (0.58)² (0.42)⁵⁻² = 0.249

P(3) = ₅C₃ (0.58)³ (0.42)⁵⁻³ = 0.344

P(4) = ₅C₄ (0.58)⁴ (0.42)⁵⁻⁴ = 0.238

P(5) = ₅C₅ (0.58)⁵ (0.42)⁵⁻⁵ = 0.066

The most likely result is 3 families.

The probability of at least 3 families is:

0.344 + 0.238 + 0.066 = 0.648

Determine the mean, median, mode, and midrange for this collection of class test scores: 88 82 97 76 79 92 65 84 79 90 75 82 78 77 93 88 95 73 69 89 93 78 60 95 88 72 80 94 88 74 a. Mean is 84, median is 82, mode is 82, midrange is 77 b. Mean is 82, median is 88, mode is 88, midrange is 77 c. Mean is 82.4, median is 88, mode is 82, midrange is 78.5 d. Mean is 82.4, median is 82, mode is 88, midrange is 78.5

Answers

Mean of a given set of data = Sum of all observations ÷ Total number of observations

Mean of this data set = 88 + 82 + 97 + 76 + 79 + 92 + 65 + 84 + 79 + 90 + 75 + 82 + 78 + 77 + 93 + 88 + 95 + 73 + 69 89 + 93 + 78 + 60 + 95 + 88 + 72 + 80 + 94 + 88 + 74

Mean = 2729 ÷ 30

Mean = 82.4

Median = the middle observation in a given set of data

Median of these test scores = 60 , 65 , 69 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 78 , 79 , 79 , 80 , 82 , 82 , 84 , 88 , 88 , 88 , 88 , 89 , 90 , 92 , 93 , 93 , 94 , 95 , 95 , 97 .

Median = 82 + 82 / 2

= 164 ÷ 2

= 82

Median = 82

Mode = most frequently occurring number in a given set of data .

Mode of these test scores =

= 60 = 1 time

= 65 = 1 time

= 69 = 1 time

= 72 = 1 time

= 73 = 1 time

= 74 = 1 time

= 75 = 1 time

= 76 = 1 time

= 77 = 1 time

= 78 = 2 times

= 79 = 2 times

= 80 = 1 time

= 82 = 2 times

= 84 = 1 time

= 88 = 4 times

= 89 = 1 time

= 90 = 1 time

= 92 = 1 time

= 93 = 2 times

= 94 = 1 time

= 95 = 2 times

= 97 = 1 time

Mode = 88

Midrange = average of the largest and smallest number in a given set of data

Midrange of these test scores = 97 + 60 / 2

= 97 + 60 / 2

= 157 ÷ 2

= 78.5

Midrange = 78.5

Therefore , the correct option is :-

(d) Mean is 82.4 , median is 82 , mode is 88 , midrange is 78.5

Please help and please pick between a b c or d

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The answer is A because the x^2 would be 4. 4x4=16

please help measure

Answers

Answer:

x = 15

Step-by-step explanation:

The definition of alternate interior angles means that both of these labeled angles will be equal. Therefore, 60 = (3x + 15)

60 = 3x + 15

Divide this by 3 on both sides

20 = x + 5

Subtract 5 from both sides

15 = x or x = 15

13. ALGEBRA Arianna North borrowed $12,500 to purchase a new cello and
agreed to pay back $13,250 in 270 days. What exact interest rate was
she paying? (Round your answer to the nearest tenth of a percent.)

Answers

8.1% is the exact interest rate

The exact rate of interest is 8.11%.

What is rate of interest?

The amount that the lender charges the borrower over and beyond the principal amount is referred to as the interest rate. A person who deposits money in a bank or other financial institution also earns additional income in terms of the recipient, known as interest, taking into account the time value of money.

Given:

Arianna North borrowed $12,500

She agreed to pay back $13,250 in 270 days.

let x be the interest rate was she paying

x= 13250 - 12500

= 750

So, x= 750/ 12500 (270/ 365)

x% = 750/ 9,246.57

x% = 0.0811

x%= 8.11%

Hence, the exact rate of interest is 8.11%.

Learn more about rate of interest here:

https://brainly.com/question/13324776

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Is it geometric or arithmetic? Why

Answers

Answer: It is Geometric.

Step-by-step explanation: Because it does not have a fixed pattern that adds or subtract which arithmetic does.

(3x²+5x)-(2x²-3x) simplify​

Answers


Your answer is X^2 + 8x

2) Why is it that when you fill the venn diagram with the number of elements, you
always need to start from the intersection of all sets?

Answers

Answer:

This is because it is easier this way.

You avoid the problem of putting an element in one set and then realizing that the element also belongs to another set, then you must erase something in order to put the element in both sets. Starting with the intersection allows you to know where will be each set in the diagram, and in this way, the diagram should end up being more readable or "clean".

This may seem small, but being "clean" when doing math, will allow you to have an easier time dealing with a lot of problems. And also will be easier for other people when reading your equations and such.

Anna takes 10 selfies every 12 minutes at this rate how many minutes for 25 selfie’s

Answers

Answer:

30 minutes.

Step-by-step explanation:

You can make a proportion, which would be 10 selfies : 12 minutes. The second one will be 25 selfies : x minutes.

They have to be equal, since it is given that the rate stays the same. So 10:12=25:x

A proportion can be written as a fraction, so 10/12=25/x.

Cross multiply, and you get 10*x=12*25, or 10x=300.

Now divide both sides by 10 to get x=30.

This is my question?
(-8.811)(16.29)
I hope you can solve this!!

Answers

Answer:

-143.53119

Step-by-step explanation: i think sorry if its wrong

Kathy's car runs almost 21 miles on a gallon of gas. If Kathy needs to travel 250
miles, at least how much gas does she need to reach her destination? Express your
answer to the nearest whole gallon.
Оа
Ob
Oc
Od
at least 8 gallons.
at least 10 gallons.
at least 12 gallons.
at least 14 gallons

Answers

Answer:

at least 8 gallons

Step-by-step explanation:

Please help! Thanks!

Answers

it would have to be c.

Find the area of the triangle. 13 m 16 m​

Answers

Answer:

Area = 104

Step-by-step explanation:

The equation to find the area of a triangle is A = 1/2 BH

so if we plug in to numbers into the equation we get

A = 1/2 13*16 no we can multi plier 13*16 and we get 208

and last we can multiply 1/2 to 208 and our final answer is 104

High Hopes^^

Barry-

Every day the Washington pet store uses 3/4 of a bag of dog food to feed the dogs his many days will 1 1/2 bags of dog food last

Answers

Answer:

2 days

Step-by-step explanation:

approximate
square root of 23 to the nearest tenth

Answers

Step 1: Calculate

We calculate the square root of 23 to be:

√23 = 4.79583152331272

Step 2: Reduce

Reduce the tail of the answer above to two numbers after the decimal point:

4.79

Step 3: Round

Round 4.79 so you only have one digit after the decimal point to get the answer:

4.8

To check that the answer is correct, use your calculator to confirm that 4.82 is about 23.

The square root of the number 23 is 4.8 after using the division method the answer is 23.

What is a number?

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that:

The number is 23 which is a real number and positive number.

As we know we can find the square root of a positive numbers only, the square root of a nagative number cannot exist

The square root of the number 23 = √23

The sign √ is a radical sign.

After using the division method;

√23 = 4.7958

After reducing the number up to two decimal places:

= 4.79

Rounding the above number to the tenth:

= 4.79 ≈ 4.8

4.8x4.8 = 23.04 ≈ 23

Thus, the square root of the number 23 is 4.8 after using the division method the answer is 23.

Learn more about the number here:

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Grace is taking a road trip that is 1,133 miles long. She has already driven 978 miles. How many
more miles does Grace need to drive?
1122 miles

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Answer:

155 miles

Step-by-step explanation:

Solve for the value of N

Answers

Answer:n=9

Step-by-step explanation:

90°=(3n+2)°+(7n-2)°
=3n+7n + 2- 2
=10n
=> n=90/10=9
So, n=9

An orthocenter of a triangle is

Answers

Answer:

the intersection of the triangle's three altitudes.

Step-by-step explanation:

hope this helped </3

Write the equation in point-slope form of the line that passes through (7-6) and has the slope of 1/2​

Answers

I forgot oops unmmmmm :/

Answer:

Find the Equation of a Line Given That You Know a Point on the Line And Its Slope. The equation of a line is typically written as y=mx+b where m is the slope and b is the y intercept.

Step-by-step explanation:

A market researcher collects a simple random sample of customers from a population of over a million​ customers that use a home improvement website. After analyzing the​ sample, she states that she has​ 95% confidence that the mean​ time customers spent on​ that website per day is between and minutes. Suppose that the population mean​ time customers spent on that website is minutes a day. Does this value of the population mean help to show that the confidence interval estimate is​ correct? Explain.

Answers

Answer:

No, because the population mean, μ, is not included within the confidence interval estimate.

Step-by-step explanation:

A (1 - α)% confidence interval for a population parameter can be used make inferences about a statistic test of the parameter.

Decision rule:

If the null value of the population parameter is included in the interval then the null hypothesis will not be rejected. And vice-versa.

In this case, a market researcher wants to determine whether the population mean​ time customers spent on that website is 13 minutes a day or not.

The hypothesis can be defined as follows:

H₀: The population mean​ time customers spent on that website is 13 minutes a day, i.e. μ = 13.

Hₐ: The population mean​ time customers spent on that website is different from 13 minutes a day, i.e. μ ≠ 13.

The 95% confidence interval that the mean​ time customers spent on​ that website per day is, (15, 50).

The 95% confidence interval for the population mean time does no consist of the null value. Thus, the null hypothesis will be rejected.

It can be concluded that the population mean​ time customers spent on that website is not 13 minutes. Since the 95% confidence interval consist of values more than 13 minutes, it can be said that the  mean​ time customers spent on that website is more than 13 minutes.

Thus, the answer is:

No, because the population mean, μ, is not included within the confidence interval estimate.

Which expression is the result of factoring the expression below by taking out its greatest common factor?
4x^2+ 16x – 4 = ?

Answers

Answer:

[tex]4(x^2+4x-1)[/tex]

Step-by-step explanation:

The greatest common factor is 4

[tex]4(x^2+4x-1)[/tex]

y=5/3x -15 in general form

Answers

Answer: 5x - 3y = 45

Step-by-step explanation:

Hope this helps

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