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
dimulka [17.4K]
2 years ago
9

Helpppp!!!!!! I need this nowwwww

Mathematics
1 answer:
san4es73 [151]2 years ago
3 0
The correct answer is number one
You might be interested in
At a ceramic shop, each cup is $6.30 cheaper than each plate. If you totally spent $28.50 for 5 cups and 3 plates, what is the p
Alex Ar [27]
Let
x-------------> <span>the price of each cup
</span>y-------------> the price of each plate

we know that

5x+3y=28.50----------> equation 1
and
x=y-6.30--------------> equation 2

I substitute 2 in 1
5*(y-6.30)+3y=28.50---------> 5y-31.5+3y=28.5-----> 8y=60
y=7.5
x=y-6.3---------> x=7.5-6.3---------> x=1.2

the answer is
the price of each cup is $1.2
 the price of each plate is $7.5


8 0
3 years ago
Tickets for a school jazz concert were sold before the concert and at the door. After reviewing ticket sales, the band director
Alex73 [517]

Answer: The answer is:

d=220, b=300

Step-by-step explanation:

You could solve this problem using a series of equations:

d+b=520

b-80=d

How I solve this is:

If d+b=520, you could divide 520 by 2 and say that d and b's average is 260 (though that is not their value).

Then , you know that the difference between them is 80. Since the average is 260, you could add half of 80 (which is 40) and subtract the same to get 220 and 300, which, as you can see, have a difference of 80 and add up to 520. Now you have to find out which is which.

Since 80 fewer tickets were purchased at the door than before the concert (d+80=b (the second equation)), you know that the number of tickets at the door is the lesser number, making the answer:

d=220, b=300


3 0
3 years ago
Read 2 more answers
In a sample of 1000 randomly selected consumers who had opportunities to send in a rebate claim form after purchasing a product,
Vadim26 [7]

Answer: 0.2872

Step-by-step explanation:

Given : In a sample of 1000 randomly selected consumers who had opportunities to send in a rebate claim form after purchasing a product, 260 of these people said they never did so.

i.e. n= 1000 and x= 260

⇒ Sample proportion : \hat{p}=\dfrac{260}{1000}=0.26

z-value for 95% confidence interval : z_c=1.960

Now, an upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate. :-

\hat{p}+ z_c\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

=0.26+ (1.96)\sqrt{\dfrac{0.26(1-0.26)}{1000}}

=0.26+ (1.96)(0.01387)=0.26+0.0271852=0.2871852\approx0.2872

∴ An upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate : 0.2872

7 0
3 years ago
What is 4x8 please answer I’ll give you 95 points
Rina8888 [55]

Answer:

32

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1) Andrew owns 220 shares of a common stock in a tech company. The tech company recently paid a cash dividend of $2.25 per share
Iteru [2.4K]

Answer:

9.0

Step-by-step explanation:

Took the test

5 0
3 years ago
Other questions:
  • Prove that every bounded increasing sequence is convergent
    14·1 answer
  • Bill, bob, and barry are hired to paint signs. in 8 hours bill can paint 1 sign, bob can paint 2 signs, and barry can paint 1 an
    8·1 answer
  • I need the answer pls pls pls answer pls
    6·1 answer
  • -1.3n =7.8 need help​
    15·1 answer
  • A recipe for lasagna calls for 98/125 lb of beef per person. Express this as a decimal. You want to use this recipe to make enou
    5·1 answer
  • What is equivalent to 1 over 9
    15·2 answers
  • Shelly believes the honor roll students at her school have an unfair advantage in being assigned to the math class they request.
    8·1 answer
  • Kaylie and Juan are in a Dance-a-thon. Contestants rest for the same amount of time every hour. Kaylie rests for 22 minutes in 4
    8·1 answer
  • For 4-6, determine whether the three numbers could be the lengths of the sides of a
    5·1 answer
  • a cafe offers senior citizens a 15% discount off its regular rice of 8.95 for the dinner buffet. what percent of the regular pri
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!