1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dezoksy [38]
4 years ago
15

On the first day of school, Mr. Vilani gave his third- grade students 5 new words to spell. On each day of school after that, he

gave the students 3 new words to spell. In the first 20 days of school, how many new words had he given the students to spell?
Mathematics
1 answer:
FinnZ [79.3K]4 years ago
6 0
So, the best way to solve this problem is by creating a equation for which we can substitute any number of days. For this problem that equation would be W=5+3(t-1)
W=number of words
T=time or number of days
-1= This is here because we are already accounting for the first day of school so we need to have 1 less day than the number of days they have been in school.
So in 20 days the students had received
5+3(19) or 62words.
Answer: 62 words
You might be interested in
There is no smallest positive rational number because, if there were, then it could be divided by two to get a smaller one. EXPL
Gennadij [26K]

Answer:

Since a/2⁽ⁿ ⁺ ¹⁾b <  a/2ⁿb,  we cannot find a smallest positive rational number because there would always be a number smaller than that number if it were divided by half.

Step-by-step explanation:

Let a/b be the rational number in its simplest form. If we divide a/b by 2, we get another rational number a/2b. a/2b < a/b. If we divide a/2b we have a/2b ÷ 2 = a/4b = a/2²b. So, for a given rational number a/b divided by 2, n times, we have our new number c = a/2ⁿb where n ≥ 1

Since \lim_{n \to \infty} \frac{a}{2^{n}b } = a/(2^∞)b = a/b × 1/∞ = a/b × 0 = 0, the sequence converges.

Now for each successive division by 2, a/2⁽ⁿ ⁺ ¹⁾b <  a/2ⁿb and

a/2⁽ⁿ ⁺ ¹⁾b/a/2ⁿb = 1/2, so the next number is always half the previous number.

So, we cannot find a smallest positive rational number because there would always be a number smaller than that number if it were divided by half.

3 0
3 years ago
A manager samples the receipts of every fifth person who goes through the line. Out of 50 people, 4 had a mispriced item. If 1,4
KiRa [710]

Answer:

112 people

Step-by-step explanation:

\frac{4}{50} = \frac{x}{1400}  write the proportion where x is the number of people with a             missplaced time

50x = 5600  cross multipy

x = 112 divide both sides by 50

3 0
3 years ago
Please help on problem 14! Thanks!!
pickupchik [31]
2 hours has more the the other so I would say it would be 8
4 0
3 years ago
US average math SAT scores follow a normal distribution with a mean of 505 and a standard deviation of 112. A sample of 64 enter
Hitman42 [59]

Answer:

The claim that the scores of UT students are less than the US average is wrong

Step-by-step explanation:

Given : Sample size = 64

           Standard deviation = 112

           Mean = 505

           Average score = 477

To Find : Test the claim that the scores of UT students are less than the US average at the 0.05 level of significance.

Solution:

Sample size = 64

n > 30

So we will use z test

H_0:\mu \geq 477\\H_a:\mu < 477

Formula : z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

z=\frac{505-477}{\frac{112}{\sqrt{64}}}

z=2

Refer the z table for p value

p value = 0.9772

α=0.05

p value > α

So, we accept the null hypothesis

Hence The claim that the scores of UT students are less than the US average is wrong

3 0
3 years ago
How are polynomials like and unlike monomials? Provide an example of a monomial and an example of a polynomial. How does the fol
Ainat [17]
A polynomial is the sum of at least one term. For example, x^3+1 is a polynomial. A monomial is a polynomial with only one term, such as 2x^2. A binomial is a polynomial with two terms, and a trinomial is one with three terms. The example you gave is a trinomial (which is also a polynomial). Degree of a polynomial is the largest sum of variable powers in any term of the polynomial. So, for example, x^2 y has degree 3, and x^3+x^2 also has degree 3. A sixth degree polynomial would be x^6-2x+1, for example.
8 0
3 years ago
Other questions:
  • Jason scored 14,568 points playing a video game. The all -time high score is 22,401 points. How much greater is the all-time hig
    10·2 answers
  • 20c + 8d +10c - 5d<br><br><br> please answer you would get 15 points!
    13·2 answers
  • A 23% increase followed by a 17% decrease is what percent change?
    10·2 answers
  • How many time does 8 go into 27
    5·2 answers
  • Three electrical appliances each have power ratings of
    10·2 answers
  • It costs four dollars to enter the fair each ride costs $2.50 you have $21.50 how many rides can you go on?
    14·1 answer
  • Find the length of the third side to the nearest tenth
    12·1 answer
  • 6/7 * 6/7 equals please help
    6·2 answers
  • Fast I need thsi for a test I trust you guys pleased
    14·1 answer
  • In the figure, s // t, find the m&lt;1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!