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
geniusboy [140]
3 years ago
10

On your own paper, solve the system of equations using elimination and identify the solution. Always list your answer alphabetic

ally in order pairs.
5e + 4f=9
4e+5f=9

A.(2,2)
B.(1,1)
C.(,1,-1(
D.(-2,-2)
E.IMS
F,NS
Mathematics
1 answer:
Oksana_A [137]3 years ago
4 0
5e + 4f = 9....multiply by -4
4e + 5f = 9 ...multiply by 5
------------------
-20e - 16f = -36 (result of multiplying by -4)
20e + 25f = 45 (result of multiplying by 5)
----------------add
9f = 9
f = 9/9
f = 1

5e + 4f = 9
5e + 4(1) = 9
5e + 4 = 9
5e = 9 - 4
5e = 5
e = 5/5
e = 1

solution is (1,1)


You might be interested in
For the figures below, assume they are made of semicircles, quarter circles and squares. For each shape, find the area and perim
ASHA 777 [7]

The area of the given figure is 576 cm sq.

The perimeter of the given figure is 96 cm.

Step-by-step explanation:

The shape consists of one semicircle and one square which is cut by a semicircle.

<u>To find Area:</u>

Find the area of semicircle= (πr^2)/2

where r is the radius= diameter/2= 24/2= 12 cm

Area of semicircle= π(12)(12)/2= 144π/2= 72π cm sq.

Find the area of square= a^2

where a is the side of square, a=24 cm.

Area of the square= 24*24= 576 cm sq.

To find the total area of the given figure,

Area of the figure= Area of semicircle+(area of square- area of semicircle)

                             = 72π+576-72π =576 cm sq.

<u>To find perimeter:</u>

Perimeter of semicircle= (2πr)/2

                                       = (2*12*π)/2= 12π cm

Perimeter of square= 4a =4*24 =96 cm

Perimeter of the given figure=  perimeter of semicircle+(perimeter of                        square- perimeter of semicircle)

                                                 = 12π+96+12π =96 cm.                            

4 0
3 years ago
Equations with fractions that equal 12
svlad2 [7]
12/1 or 24/2 36/3 etc.
4 0
3 years ago
Dylan borrowed $2100 from the bank for 15 months. The bank discounted the loan at 2.6%. How much was the interest? $ State your
melomori [17]

Answer:

actual rate of interest is 2.08 %

Step-by-step explanation:

Given data

borrowed = $2100

time = 15 months

rate = 2.6%

to find out

interest and receive from the bank and actual rate of interest

solution

we know bank discounted the loan at 2.6%

so interest will be 2.6% of $2100

that is  = 2.6/100 × 2100

interest = $54.60

so receive from the bank  is  borrowed money - interest

receive = 2100 - 54.60

receive from the bank is $2045.40

and we can say that interest is directly proportional to time

so interest of 12 months / interest of 15 month = 12 month time/ 15 month time

here  interest of 12 months = 12/15 ×  interest of 15 month

interest of 12 months = 12/15 × 54.60

interest of 12 months is $43.68 (annually)

now we can calculate actual rate of interest

that is = interest / borrowed money × 100

actual rate of interest = 43.68/2100 × 100

actual rate of interest is 2.08 %

6 0
3 years ago
Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the net change in Michael's accoun
kozerog [31]
$30.75 x 12 = 369
$550-$369 =$181
7 0
3 years ago
What’s 1 plus 1 please hurrt
Aleks04 [339]
1+1 is equal to 2 lol
5 0
3 years ago
Read 2 more answers
Other questions:
  • Keshav has $250 in his account. This is $75 more than his brother Nalin has in his account. Write and solve an addition equation
    15·2 answers
  • 10 &lt; –2b or 2b + 3 &gt; 11
    10·1 answer
  • A same side interior angle of two parallel lines is 70° greater than the other same side interior angle. Find the measures of th
    8·1 answer
  • A square quilt is made by sewing smaller square sections together. The same number of smaller squares are in each row. Beth’s sq
    7·2 answers
  • If you guys can't see it , it says Triangle JKL was translated 12 units vertically and then reflected over the y-axis to create
    5·1 answer
  • A company wish to place a new telephone into each of its 576 offices. The telephones are sold in sets of 16. How many sets of te
    5·1 answer
  • Hallie bikes 1 5/8 km before lunch 6 1/4 km How much farther does hallies bike after lunch than before lunch? Express your answe
    9·1 answer
  • The Pythagorean theorem, a^2+b^2=c^2, is used to calculate the side length of a right triangle. Which equation can be used to ca
    8·2 answers
  • Please help me with this
    8·2 answers
  • Evaluate 3x^2 - x for x = -2​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!