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
Andrej [43]
3 years ago
6

Tomas bought 3 software apps and 2 e-books for a total of $21. The two e-books cost $12. If s represents the cost of each app, t

he total cost of all 5 items is represented by 3 s + 12 = 21. Which statement about verifying the solution for s is true?
Mathematics
1 answer:
dedylja [7]3 years ago
4 0

Answer:

s = 3

Step-by-step explanation:

First compute the cost of the three apps:

21-12=9

The cost of the three apps is $9 then.

Since s is the price of the apps, we deduce the equation:

3s=9

/3

s = 3

You might be interested in
Using algebra, solve the inequality<br> writing your answer in set notation.<br> x²-x&gt; 20
Xelga [282]

Answer:

(-4, 0) U (1, ∞)

Step-by-step explanation:

Set each factor EQUAL to zero to find the zeroes (since it is not actually equal to zero, you will use an open circle when graphing and an open bracket when writing in interval notation).

x = 0           x-1 = 0             x + 4 = 0

                  x = 1                x = -4

Next, choose a value to the far left, between each of the zeroes, and to the far right to evaluate if it makes a true statement when input into the given inequality.

far left (I choose -5): -5(-5 - 1)(-5 + 4) > 0   →  (-)(-)(-) > 0  →   negative > 0  FALSE

- 4 to 0 (I choose -2): -2(-2 - 1)(-2 + 4) > 0   →  (-)(-)(+) > 0  →   positive > 0  TRUE

0 to 1 (I choose 0.5): .5(.5 - 1)(.5 + 4) > 0   →  (+)(-)(+) > 0  →   negative > 0  FALSE

far right (I choose 2): 2(2 - 1)(2 + 4) > 0   →  (+)(+)(+) > 0  →   positive > 0  TRUE

3 0
1 year ago
Which of the following decimal numbers equals 4 thousands, 9 hundreds, 2 tens, and 6 ones?
Murljashka [212]

Answer:

4,296

Step-by-step explanation:

because 4 thousands = 4,000, 9 hundreds = 900, 2 tens = 20 and 6 ones= 6, 400 + 900 + 20 + 6 = 4,920

5 0
4 years ago
23 POINTS A 3-column table with 5 rows. Column 1 has entries Mean, median, mode, range, M A D. Column 2 is labeled Noah with ent
jek_recluse [69]

Answer:

Answer:Noah and Gabriel are in the same English class. They have taken 6 quizzes so far. ... Gabriel's scores: 82, 85, 86, 86, 90, 94 Total of 523 ... What are Gabriel's mean, median, and mode? ... 1.1/5. 2. ryan28772020. ryan28772020. jd3sp4o0y. +16. jd3sp4o0y and 16 ... D. The mean is 83 and the median is 90.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
4x 2 −28x+40 factored completely plzzzzz help mee
blagie [28]

Answer: 4( x - 5)( x - 2)

Step-by-step explanation:

4x^2 -28x + 40

4 ( x - 5)(x - 2)

4 0
3 years ago
Read 2 more answers
PLLLLLEASE I NEED HELP SO BADLY PLEASE ASAP PLEASE PLEASE T_T
olchik [2.2K]

Answer:

x^2+7x-8-\frac{3}{x-7}

Step-by-step explanation:

I think this question is a bit hard to explain by typing, so I'll add an image down below.  

I used long division for this question, and the final answer is: x^2+7x-8-\frac{3}{x-7}

4 0
2 years ago
Other questions:
  • The equation y = 0.035x shows the relationship between the grams and ounces.
    11·1 answer
  • HELPPPO i need that solved
    8·1 answer
  • 5 FRIENDS GO OUT TO LUNCH AND ORDER 5 PIZZAS, THE FRIENDS DIVIDED THE PIZZAS EVENLY.FIND HOW MUCH PIZZA EACH FRIEND GOT AS A DEC
    13·2 answers
  • 80 POINTS FOR ALL 5 ANSWERS AND BRAINLEIEST
    14·2 answers
  • Use fraction multiplication to show how you can find the measure of a right angle.
    10·2 answers
  • 5x+12=-18<br> what is the value of x ?
    13·2 answers
  • Tara's car accelerated from 10 miles per hour to 70 miles per hour in 12 seconds.
    12·1 answer
  • sandy is having a thanksgiving feast for her family of 24. she is deciding between these two options. Help please which one is b
    12·1 answer
  • If you don’t help me your a criminal
    10·1 answer
  • Add −1.25+2.5<br><br> Plot the first addend and the sum on the number.<br> Please tell the explain
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!