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
Amiraneli [1.4K]
3 years ago
8

Sam have 10 books and Mary have 10 books too how manny books they all have

Mathematics
2 answers:
andreev551 [17]3 years ago
8 0
Sam and Mary have 20 books.
Liula [17]3 years ago
6 0
20 is the answer because 10+10=20
You might be interested in
Youth tickets(y) cost $2 for a ride, while adult tickets(x) cost $3. The amount of money earned is $54. If all the seats were fi
Paha777 [63]
There are no constants here. But we have x and y here.
We will create an equation which is:
2y+3x=54.
But we will also create a second equation which states the number of seats.
x+y=24.

Now we do the two-equation solving method.
2y+3x=54
-2(x+y=24)

2y+3x=54
-2x-2y=-48

x=6

To solve for y, plug in x into one of the original equations. Which one doesn't matter.

y+6=24
y=18

7 0
3 years ago
A=1/2h(B+b); A=45, B=4, b=5
klemol [59]
Answer: h=10

Solving Steps:
45 = 1/2h x (4+5)
45 = 1/2h x 9
45 = 9/2h
10 = h
h = 10
4 0
3 years ago
A parabola has a vertex at the origin. The focus of the parabola is located at (–2,0).
12345 [234]

dam what Answer:

Step-by-step explanation:dom

no it’s not working

5 0
3 years ago
Can someone please answer this, ill give you brainliest Would be very appreciated.
riadik2000 [5.3K]

Answer:

See below ~

Step-by-step explanation:

  1. More revenue would be generated at $5 than $17 because on the graph, when the price is at $5, there is about $3750 in revenue compared to when the price is $17, the revenue is $2500.
  2. The company should sell their product at $10. At this price, the revenue they will make is $5,000.
  3. The domain is the possible intervals in which x lies. Therefore, the domain is : 0 ≤ p ≤ 20.
3 0
2 years ago
The average hourly wage of computer programmers with 2 years of experience has been $21.80.Because of high demand for computer p
svp [43]

Answer:

d. H0: μ <= 21.80 Ha: μ > 21.80

Step-by-step explanation:

We set the null hypothesis as what is already given . We are already informed that the average wage is equal to  μ <= 21.80 against the claim that is required. It is required to test whether the average wage of the computer programmers is greater than μ > 21.80

So option d is the best answer.

Hypotheses testing is done  using an observation and a claim. The observation is set as a null hypothesis and claim is set as an alternative hypothesis. The null and alternative hypotheses must be chosen wisely to get the correct results.

The critical region is dependent on the claim set.

5 0
3 years ago
Other questions:
  • Is y=6/5x proportional
    8·2 answers
  • Write the expression 21a^3c^8/7a^5c^3
    5·1 answer
  • 2.50 into a fraction
    11·2 answers
  • The flower color of bigleaf hydrangeas is determined by the soil's pH. A gardener growing blue hydrangeas believes that lime may
    6·1 answer
  • Brainliest question please help please help me solve all the two problems please
    15·1 answer
  • Given the function f(x) = 7x² – 3x + 6. Calculate the following values:
    15·1 answer
  • What is the value of the expression when x = 5? 3x^2 + 14 - 10x
    9·1 answer
  • Amanda's poster is 0.85 meter long. Orlando's poster is 0.55 meter less than 1 meter long. Which expression shows the difference
    8·1 answer
  • Plz help me Jen can jump rope 80 times in 60 seconds. If she jumps at a constant ratio of seconds to jumps, how many jumps can s
    14·1 answer
  • Graph the line.<br> y=4/3x
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!