Samuel collected 30 signatures from fifth-grade students at his school. He noticed that 3/5 of the signatures were done in pencil. How many of the signatures were done in pencil?

Answers

Answer 1

Answer:

30 / 5 = 6.

6x3=18

Step-by-step explanation:

Hope this helped! Have a great day!

Answer 2

Answer:

18

Step-by-step explanation:

if you divide 30 by 5 (30/5) and multiply 3 by that number you will get your answer of 18/30 signatures


Related Questions

someone help me with this question plzzz

Answers

Answer:

Step-by-step explanation:

As per Janayda,

From the figure attached,

In ΔTRQ,

m∠TRQ + m∠RQT + m∠QTR = 180°

25° + m∠RQT + 35° = 180°

m∠RQT = 180° - 60°

m∠RQT = 120°

Since, m∠RQT + m∠PQT = 180° [Linear pair of angles]

m∠PQT = 180° - m∠RQT

             = 180° - 120°

             = 60°

In right angled triangle TPQ,

m∠TPQ + m∠PQT + m∠PTQ = 180°

90° + 60° + m∠PTQ = 180°

m∠PTQ = 180° - 150°

             = 30°

Similarly, other angles can also be evaluated from the given information.

In ΔQTP and ΔNTP,

TP ≅ TP [Reflexive property]

NP ≅ PQ [Given]

ΔQTP ≅ ΔNTP [By LL postulate for congruence]

Therefore, Janayda is correct.

While Sirr is incorrect.

Since, there is not the enough information to prove ΔRTQ and ΔMTN equal, Isabelle is incorrect.

A farmer plans to grow wheat and corn. Each acre of wheat requires 4 hours of labor and $20 of capital, and each acre of corn requires 16 hours of labor and $40 of capital. The farmer has at most 800 hours of labor and $2400 of capital available. If the profit from an acre of wheat is $80 and from an acre of corn is $100, how many acres of each crop should she plant to maximize her profit?

Answers

Answer:

To maximize profits, the farmer should plant 120 acres of wheat, and no acre of corn.

Step-by-step explanation:

Given that a farmer plans to grow wheat and corn, and each acre of wheat requires 4 hours of labor and $ 20 of capital, and each acre of corn requires 16 hours of labor and $ 40 of capital, and the farmer has at most 800 hours of labor and $ 2400 of capital available, if the profit from an acre of wheat is $ 80 and from an acre of corn is $ 100, to determine how many acres of each crop should she plant to maximize her profit the following calculation must be performed:

Knowing that each acre of wheat has a 50% lower capital cost, 75% lower hours and a 20% lower profit, in principle this would be the crop to be planted to obtain better yields.

2400/20 = 120

120 x 4 = 480

120 x 80 = 9,600

Thus, to maximize profits, the farmer should plant 120 acres of wheat, and no acre of corn.

A cell phone company is proposing to offer a discount to seniors if there was evidence that their average call length was less than the overall population mean of 9.2 minutes. If the phone calls are too long and the discount is provided, the company will lose money. A random sample of the length of calls for 100 randomly selected seniors was determined.
(a) State the null and alternative hypotheses. Write 's' as '<=', '' as '>=', and '#' as '<>'.
(b) In context, explain what the Type I error is.
(c) In context, explain what the Type II error is.
(d) Which is worse for the seniors, a Type I error or a Type II error? Why?

Answers

Step-by-step explanation:

1. Null hypothesis:

h0: μ ≥ 9.2

alternative hypothesis

h1: μ < 9.2

2. the type 1 error is an error that occurs when we reject a true null hypothesis. in this question, the type 1 error is commited if we reject the null hypothesis that the population mean is greater than or equal to 9.2, then we have committed this error.

3. the type ll error is an error that o a false occures wehn we do not reject a false null hypothesis. We commit the type ll error in this scenario by saying that the population mean is greater than or less than 9.2 when it is actually false.

4. The type ii eror is actually worse here. we accept a false H0 in the type ii error which says that the mean is greater than or equal to 9.2. This means that these seniors are not going to get discount because they only get discount when their mean calls is less than 9.2 minutes.

can somebody help me

Answers

7x4=28.
3x4=12
———
40 cups
28 mango and 12 cranberry

In ordering a café latte, you have a choice of whole, skim or soy milk; small, medium or large; and either one or two shots of espresso. How many choices do you have in ordering one
drink?

Answers

Answer:

3 choices is the answer i think

Please check my answers!

Answers

Answer:

You are correct about the graphs and tables, but I am not so sure about the mapping, but don't take my word for it, sorry.

but still,

I hope this helps!

Calculate the measures of spread for Mrs. Hampton’s class data. Justify your response by describing the process used to find each measure. (2 points)

Answers

Answer:

The measures of spread for Mrs. Hampton’s class data come in a few different ways. One is the IQ range, the IQ Range is the Lower Quartile and Upper Quartile subtracted. The IQR is 8-5 = 3.

Hope this helps! Have a nice day! <3

Feel free to use this information and put it in your own words for your assignment! Best of luck! <3

Edge 2020-2021

The measure of spread for the data in Mrs. Hampton’s class when using the interquartile range is  3.

What is a measure of spread?

It should be noted that the measure of spread simply describes how similar or varied the set of observed values are for a variable.

The measures of spread include the quartiles, range, interquartile range, variance, and standard deviation.

In this case, the interquartile range will be the difference between the lower quartile and the upper quartile. This will be:

= 8 - 5 = 3

Learn more about interquartile range on:

https://brainly.com/question/4102829

s
Meet - fgo-cpwg-cnq
1. Luz rode her bike in the park
for 45 minutes and rode in her
neighborhood for 25 minutes . Luz
stopped riding her bike at 4:40 P.M.
12
11
10
9
60
2
3
8
5
7
6

Answers

Answer:

A. 3:30 pm

Step-by-step explanation:

45 + 25 = 70 --> 1 hour 10 minutes

4:40 minus 1 hour 10 minutes --> 3:30

The Washington, DC, region has one of the fastest-growing foreclosure rates in the nation, as 15,613 homes went into foreclosure during the one-year period ending in February 2008 (The Washington Post, June 19, 2008). Over the past year, the number of foreclosures per 10,000 homes is 131 for the Washington area, while it is 87 nationally. In other words, the foreclosure rate is 1.31% for the Washington, DC area and 0.87% for the nation. Assume that the foreclosure rates remain stable.

Required:
a. What is the probability that in a given year, fewer than 2 out of 100 houses in the Washington, DC area will go up for foreclosure?
b. What is the probability that in a given year, fewer than 2 out of 100 houses in the nation will go up for foreclosure?
c. Comment on the above findings.

Answers

Answer:

a) 0.6226 = 62.26% probability that in a given year, fewer than 2 out of 100 houses in the Washington, DC area will go up for foreclosure.

b) 0.7837 = 78.37% probability that in a given year, fewer than 2 out of 100 houses in the nation will go up for foreclosure.

c) The proportion of foreclosures in the Nation is lower than in Washington, which means that with a sample size of 100, it is likely to have a small number(fewer than 2) of foreclosures than Washington DC.

Step-by-step explanation:

For each home, there are only two possible outcomes. Either it goes into foreclosure, or it does not. The probability of a home going into foreclosure is independent of other homes. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

a. What is the probability that in a given year, fewer than 2 out of 100 houses in the Washington, DC area will go up for foreclosure?

The foreclosure rate is 1.31% for the Washington, DC area, which means that [tex]p = 0.0131[/tex]

We wanto to find, with [tex]n = 100[/tex]:

[tex]P(X < 2) = P(X = 0) + P(X = 1)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{100,0}.(0.0131)^{0}.(0.9869)^{100} = 0.2675[/tex]

[tex]P(X = 1) = C_{100,1}.(0.0131)^{1}.(0.9869)^{99} = 0.3551[/tex]

[tex]P(X < 2) = P(X = 0) + P(X = 1) = 0.2675 + 0.3551 = 0.6226[/tex]

0.6226 = 62.26% probability that in a given year, fewer than 2 out of 100 houses in the Washington, DC area will go up for foreclosure.

b. What is the probability that in a given year, fewer than 2 out of 100 houses in the nation will go up for foreclosure?

Foreclosure rate of 0.87% for the nation, which means that [tex]p = 0.0087[/tex]. So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{100,0}.(0.0087)^{0}.(0.9913)^{100} = 0.4174[/tex]

[tex]P(X = 1) = C_{100,1}.(0.0087)^{1}.(0.9913)^{99} = 0.3663[/tex]

[tex]P(X < 2) = P(X = 0) + P(X = 1) = 0.4174 + 0.3663 = 0.7837[/tex]

0.7837 = 78.37% probability that in a given year, fewer than 2 out of 100 houses in the nation will go up for foreclosure.

c. Comment on the above findings.

The proportion of foreclosures in the Nation is lower than in Washington, which means that with a sample size of 100, it is likely to have a small number(fewer than 2) of foreclosures than Washington DC.


A farmer has 10 animals, all chickens and horses. There are a total of 22 legs. How many of each animal does the farmer have?

Answers

Answer:
9 chickens and 1 horse
Explanation:
9 chickens have 18 legs
1 horse has 4 legs
18 legs+ 4 legs= 22 legs

Which fraction is shown by point D?
A. 1/3
B. 1/4
C. 3/3
D. 3/4

Answers

Answer:

C

Step-by-step explanation:

Hope dis helps

3/3 bc it’s on the 1 so it’s a whole

if you don't know the answer to one of the problems you can just answer how every many you know and btw ill mark you!!

Answers

1. Have spinal cords 2.snakes and sharks 3.have live baby’s I’m pretty sure u have them all right good job

Answer:

#2 is correct.

#3 is correct, mammals are vertebrates, which means cows counts, also frogs, since they have to jump a lot, they have 10 vertebrae. Also, hawks, since they're vertebrates, and all vertebrates have backbones.

$4 is correct.

If you like my answer, please mark me brainliest.

edit question_ stats

Answers

wait what is there a question

Determine the vertex of the function f(x)=2(x+1)(x+7). You must show all algebraic steps for full marks

Answers

Answer:

vertex (-4,-18)

Step-by-step explanation:

f(x)=2(x+1)(x+7)

f(x)=2(x^2+8x+7)

f(x)=2x^2+16x+14

f(x)=2(x^2+8x)+14

f(x)=2(x^2+8x+4^2-4^2)+14

f(x)=2(x^2+8x+4^2)+2(-4^2)+14

f(x)=2(x^2+8x+4^2)+2(-4^2)+14

f(x)=2(x^2+8x+4^2)-18

f(x)=2(x+4)^2-18

vertex form:

f(x)=a(x-h)^2+k

h=-4

k=-18

vertex (-4,-18)

PLEASE HELP WILL MARK BRANIEST IF RIGHT

Answers

I think the increasing is -2,1 and 0,1 and the decreasing is -1,0.5 and -2,2.5

What is the determinant of K=[6 8 0 3]
–18
–8
10
18

Answers

D) 18

Correct on Edge

On Monday in Minneapolis,Minnesota it’s was 0°F outside. On Tuesday it’s was 15 degrees colder. What was the temperature and Tuesday?

Answers

Answer:

-15º F.

Step-by-step explanation:

Given that on Monday in Minneapolis, Minnesota it’s was 0 ° F outside, while on Tuesday it was 15 degrees colder, to determine what was the temperature on Tuesday the following calculation must be performed:

0 - 15 = X

-15 = X

Thus, the temperature on Thursday was -15º Fahrenheit, which is equal to -26.11º Celcius.

There were 48 blue, 48 green, and 48 yellow crayons. Also there were 72 red crayons and 120 colored pictures. What is the largest number of identical sets can be made of these crayons and pictures?

Answers

Answer:

24

Step-by-step explanation:

For this problem, you need to find the greatest common factor because you need to divide all of the materials equally into identical sets.

If you factor out the numbers 48, 72, and 120, (same # of blue, green, and yellow crayons) you'll get the GCF of 24.

48 - 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

72 - 1, 2, 3, 4, 18, 6, 8, 9, 12, 24, 36, 72

120 - 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

The greatest common factor in all of these lists is 24.

Therefore, the largest number of identical sets is 24.

(2 blue crayons, 2 green crayons, 2 yellow crayons, 3 red crayons, 5 colored pictures)

Answer:

24

Step-by-step explanation:

What is g(x)?

A. g(x) = -2
B. g(x) = -11
C. g(x) = -x
D. g(x) = -x


WILL MARK BRAINIEST!!

Answers

The answer will be A. The proof is that you divide the long division and subtract it by 2. GEORGENOTFOUND IS SO SEGCY

Step-by-step explanation:

g(x) = -X^2

which isn't an option.

Which situation explains when a system of equations has infinitely many solutions ?

Answers

Answer:

C. when they are the same line

Parallel and Perpendicular

Answers

Answer:

parallel is like a road and perpendicular is like an x where the lines cross eachother

Step-by-step explanation:

my knocwlegde lol sorry if wron but im pretty confident its right

Answer:

parallel of lines, planes, surfaces, or objects) side by side and having the same distance continuously between them.

perpendicular of an angle of 90° to a given line, plane, or surface.

Name a straight triangle.

Answers

What’s the volume of a cylinder

Answer:

A triangle

Step-by-step explanation:

The angles of a triangles are straight

therefore the triangle is a straight triangular shape

What is the slope of the line y = -3x + 2? A. 2 2 B. -3 O C. -2 D. 3​

Answers

Answer:

The slope of y=-3x+2 is B. -3

quickly Solve for k pls

Answers

Step 1 you need to cross multiply
Then divide both sides by eight which will then give you this answer

K= 3/2

Answer:

its 6

Step-by-step explanation:

its the fraction before they simplified it.

The lengths of two sides of a triangle are 4
and 6. The third side cannot be
tec
a) 6
b) 4
c) 3
d) 2

Answers

The correct answer is a
Its a(6) okk good luck

A map represents every 4 miles with 1 inch. If a school and a bank are actually 12 miles apart, how far apart are they on the map? A . 3 B. 4 C. 7. D . 8

Answers

Answer:

Step-by-step explanation:

12mi(1in/4mi)=3in

Answer:

A) 3

Step-by-step explanation:

4/1=12/x

4/1=4

4=12/x

x=12/4

x=3


When asked 6 out of 20 people
will say yes to "Do you like to eat
frog legs” How many people
would say yes if you asked 430?

Answers

Answer:

129 people would say yes if you asked 430 people

Step-by-step explanation:

430 ÷ 20 = 21.5

6 × 21.5 = 129

129/430 = 0.3

6/20 = 0.3

This means they are equivalent and 129 people would say yes

how do I answer this?​

Answers

If you are trying to find the area the answer would be 48

I need help I will mark brainiest no spam or report

Answers

Answer:

C

Step-by-step explanation:

Hey There!

The range is subtracting the highest value from the lowest value

the highest in the set is .87 and the lowest is .05

so we subtract

.87-.05=.82 so the range is .82

Which is the graph of the inequality: y is less than (1/2x - 2)^3

Answers

Answer:

A

Step-by-step explanation:

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