answer.
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
horrorfan [7]
2 years ago
6

A student claims that the expression “9 times the sum of a number and 13” is translated to the algebraic expression 9n + 13. Is

the student correct? If not, what is the correct expression?
Mathematics
2 answers:
Alex73 [517]2 years ago
8 0
9*13+n 
I think that is correct, try and split up the question. 
9* 
A sum of a number AND 13
So that means that 9 is multiplying by the SUM (adding) of 13 and a number (n)
8_murik_8 [283]2 years ago
4 0
9*13+n 

9* 
<span>A sum of a number and 13

so your answer is correct.</span>
You might be interested in
I round to 900 I have twice as many hundreds as ones and all my digits are different but their sums are 18 can someone answer th
stellarik [79]

Answer:

The number of once is 9.1  

The number of hundreds is 8.9

Step-by-step explanation:

Given as :

The total of digits having ones and hundreds = 900

The sum of digits = 18

Let The number of ones digit = O

And The number of hundreds digit = H

So, According to question

H + O = 18             .........1

100 × H + 1 × O = 900          ........2

Solving the equation

( 100 × H - H ) + ( O - O ) = 900 - 18

Or, 99 H + 0 = 882

Or , 99 H = 882

∴   H = \frac{882}{99}

I.e H = 8.9

Put the value of H in eq 1

So, O = 18 - H

I.e  O = 18 - 8.9

∴    O = 9.1

So, number of once = 9.1

number of hundreds = 8.9

Hence The number of once is 9.1  and The number of hundreds is 8.9

Answer

4 0
2 years ago
Jana earns $25 per week for mowing the lawn and deposits the money into her savings account. The amount of money in Jana’s accou
Verizon [17]

Answer:

  The amount of money in the account in addition to that earned from mowing lawns.

Step-by-step explanation:

125 is the amount in the account when 0 weeks are spent mowing lawns. Presumably, it is the initial value of the account before the first lawn money is added.

5 0
2 years ago
The probability that Alma makes a three-point shot in basketball is 20 % 20%20, percent. For practice, Alma will regularly shoot
Rainbow [258]

Complete Question: Check the file attached to this document to see the complete question

Answer:

P(X < 7) = 0.76

Step-by-step explanation:

Counting properly from the diagram attached to the question,

number of trials it took her to make less than 7 shots(i.e. 0 to 6 shots) = 38

The total number of trials she made = 50

Probability that it takes fewer than 7 shots to get her first successful shot, P(X < 7) = (number of trials it took to make less than 7 shots)/(Total number of trials)

P(X < 7) = 38/50

P(X < 7) = 0.76

8 0
2 years ago
Dan invests £2200 into a savings account. The bank gives 5% compound interest for the first 3 years and 4% thereafter. How much
Naily [24]
Present value = 2200
interest rates =5% for 3 years, and 4% afterwards
no. of periods = 7

Future value=2200*(1.05)^3(1.04)^(7-3)
=<span>£</span>2979.367   (please round to appropriate number of decimals)
7 0
2 years ago
Read 2 more answers
Prove this (sinx-tanx)(cosx-cotx)=(sinx-1)(cosx-1)
Ilya [14]

<span><span>(<span>sinx</span>−<span>tanx</span>)</span><span>(<span>cosx</span>−<span>cotx</span>)</span></span>

<span>=<span>(<span>sinx</span>−<span><span>sinx</span><span>cosx</span></span>)</span><span>(<span>cosx</span>−<span><span>cosx</span><span>sinx</span></span>)</span></span>

<span>=<span>sinx</span><span>(1−<span>1<span>cosx</span></span>)</span><span>cosx</span><span>(1−<span>1<span>sinx</span></span>)</span></span>

<span>=<span>sinx</span><span>(<span><span>cosx</span><span>cosx</span></span>−<span>1<span>cosx</span></span>)</span><span>cosx</span><span>(<span><span>sinx</span><span>sinx</span></span>−<span>1<span>sinx</span></span>)</span></span>

<span>=<span><span>sinx</span><span>cosx</span></span><span>(<span>cosx</span>−1)</span><span><span>cosx</span><span>sinx</span></span><span>(<span>sinx</span>−1)</span></span>

<span>=<span>(<span>cosx</span>−1)</span><span>(<span>sinx</span>−1<span>)</span></span></span>

6 0
2 years ago
Read 2 more answers
Other questions:
  • Ken bought 3 3/4 pounds of apples at the farmers' market. Abby bought 2 1/8 pounds of apples. How many pounds of apples did Ken
    13·2 answers
  • " 7. Mr Gerry’s class has 19 students Ms Vernon’s class has 21 students and Mr Singh’s class has 23 students Whose class has a c
    5·1 answer
  • One US dollar is currently worth 0.79 euro (€). If you exchange $522 for euros, how many euros will you have?
    10·2 answers
  • On a test, leo is asked to completely factor the polynomial 3x3 – 3x 5x2 – 5. he uses double grouping to get (x2 – 1)(3x 5). has
    11·2 answers
  • A local car wash is inviting customers to join the Concierge Club, in which you can have your car washed as many times as you wi
    15·2 answers
  • Stan's cookie recipe makes 242424 cookies and calls for exactly 384384384 sprinkles. He is wondering how many sprinkles (p)(p)le
    6·1 answer
  • If a line crosses the yaxis at (0, 1) and has a slope of 4/5 , what is the equation of the line?
    8·1 answer
  • Snow avalanches can be a real problem for travelers in the western United States and Canada. A very common type of avalanche is
    10·1 answer
  • a company rented a computer $800 a month. 5 years later the treasurer that if the company had purchased the computer and paid $1
    5·1 answer
  • A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!