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
White raven [17]
3 years ago
5

The sum of 7 times the number and 3 times the 2nd numbers 54 if the 1st number is 2 more than the 2nd number what are the 2 numb

ers right as this movie equations that can be used to find the numbers
Mathematics
1 answer:
Sonja [21]3 years ago
6 0

Answer:

1) The  series of equations that can be used to find the numbers are

7·x + 3·y = 54...(1)

x = y + 2...(2)

2) The first number is 6

The second number is 4

Step-by-step explanation:

1) The given parameters for the numbers are;

7 times the first number + 3 times the 2nd number = 54

The first number = The 2nd number + 2

Let 'x' represent the first number and let 'y' represent the second number

The following series of equations can therefore be used in finding the numbers;

7·x + 3·y = 54...(1)

x = y + 2...(2)

2) By substituting the value of x = y + 2 from equation (2) into equation (1) gives;

7·x + 3·y = 54

∴ 7×(y + 2) + 3·y = 54

7·y + 14 + 3·y = 54

10·y + 14 = 54

10·y = 54 - 14 = 40

y = 40/10 = 4

The second number = y = 4

The first number, x = y + 2 = 4 + 2 = 6

The first number, x = 6.

You might be interested in
HELP HELP PLEASE :,)
laila [671]
The circumference is 6.28
4 0
2 years ago
Please, I need help ASAP!
enot [183]

Answer:

A

Step-by-step explanation:

You can eliminate B and D because it’s using \frac{g}{f}, but the question is asking \frac{f}{g}. So it’s either A or C. They are both written correctly, but out of the two, A is correct because just that x ≠ \sqrt{7} part of it is what makes it true.

The reason being is that the only thing that won’t make \frac{2x+1}{x^{2}-7 } true is when the denominator equals 0, because anything divided by 0 is undefined. So, when you plug \sqrt{7} for x in the denominator you get: \sqrt{7^{2} } -7. The \sqrt{7^{2} } part just turns into 7, and 7 - 7 is 0. So you don’t want x to equal \sqrt{7}.

<u>So the answer is A:</u>  \frac{2x+1}{x^{2}-7}, x\neq ± \sqrt{7}

There you go my friend!

I hope you understand and that this helps with your question! :)

7 0
3 years ago
A die is rolled. Write each answer as a fraction, decimal, and percent. Show your work.
dalvyx [7]
A. 1/6, .16666666, 16.6666666%
B. 4/6, .64, 64%
C. 5/6, .80, 80%
3 0
3 years ago
A polynomial function has a zero at 4 (multiplicity 3) and 0 (multiplicity 1)
Maslowich

Answer:

Y=3x(x-4)

Step-by-step explanation:

4 0
3 years ago
The number of students at jefferson school is even. The number has three digits. The digit in the ten place is 4. write there nu
Burka [1]
Let's assign three blanks for each digit of the unknown number. But let's fill in the tens digit because it is already specified.

_ 4 _

The last digit should be even to make it even. The possible digits for this are 2, 4, 6, and 8. The first digit could be any digit from 1 to 9. Therefore, the possible answers are 

142  242  342  442  542  642  742  842  942
144  244  344  444  544  644  744  844  944
146  246  346  446  546  646  746  846  946
148  248  348  448  548  648  748  848  948

Therefore, there are a total of 36 possible answers.

5 0
3 years ago
Other questions:
  • Samuel pays $42 for a sweatshirt online. Sales tax is 7%. What is the total amount Samuel will pay for the sweatshirt?
    15·1 answer
  • Need help with number 20
    9·1 answer
  • A bag contains 90 marbles, some red and some blue. If there are 60 blue marbles, what is the ratio of blue to red marbles?
    11·1 answer
  • Please answer ASAP!
    8·1 answer
  • Suppose 15% of the apples picked one afternoon are rotten. The following simulations demonstrate how apples can be randomly chos
    8·1 answer
  • Given the graph of the parent function is f(x) = 22
    14·1 answer
  • Find the Perimeter of the figure below, composed of a rectangle and two semicircles. Round to the nearest tenths place.
    11·1 answer
  • Name three values of x that would result in <br> y = cot x being undefined.
    11·1 answer
  • Find the area of the shape shown below:
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=%20-%2010a%20-%209n%20%2B%2016%20-%2030%20%2B%203n%20%2B%2015a%20%2B%2050%20%2B%20a%20%3D%20"
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!