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
Stolb23 [73]
3 years ago
7

Solve the simultaneous equations: x + 5y = 39 4x + 3y = 20

Mathematics
2 answers:
Dimas [21]3 years ago
6 0

Step-by-step explanation:

i hope this helps.......

cupoosta [38]3 years ago
6 0

Answer:

y= 8, x= -1

Step-by-step explanation:

Solve for x

x= 39-5y

Substitute the given value of x into equation 4x+3y=20..

4(39-5y)+3y=20

y=8

Substitute the value of y into equation x=39-5y..

x=39-5×8

x= -1

y= 8, x= -1

<em>i hope this helps!! :)</em>

You might be interested in
20 POINTS FOR STEP BY STEP!!
kobusy [5.1K]
BAD=BCD(base angle ,isosceles triangle)
ABD=CBD(given)
BAD+BCD+ABC=180(angle sum of triangle)
36+36+ABC=180
ABC=108
ABC=ABD+CBD
CBD=108/2
=54
therefore
x=54
8 0
3 years ago
Read 2 more answers
I NEED HELP ASSSSSSAAAAAAAAAAAPPPPPPPPPPPPPPP
stira [4]
9 4/21

Hope this helps, i apologize if i’m incorrect
4 0
3 years ago
Read 2 more answers
Daniel brother can eat 4 ice cream sandwiches every 30 minutes his brother can eat double that how many ice cream sandwiches wil
Snowcat [4.5K]

Answer:

3 minutes and 45 seconds

Step-by-step explanation:

His brother can eat 1 ice cream sandwich every 3 minutes and 45 seconds I found this out by dividing 30 by 8 then I got 3.75 then I converted .75 to 75% of 60 was 45 thus ending up with 3:45

8 0
4 years ago
What is the simplified form of 3 over 4x plus 3 + 21 over 8 x squared plus 26x plus 15
arsen [322]
This is the concept of algebra, we are required to add up the terms given above, here we shall have:
3/(4x)+21/(8x)+26x+15
when we sum up we get:
27/(8x)+26x+15
=(27+208x^2+120x)/(8x)
The simplified form of the summation of the terms is:
(27+208x^2+120x)/(8x)
4 0
3 years ago
Determine the factors of x2 − 7x − 10.
KIM [24]
Hey there!

We could try to factor this trinomial by splitting up the middle term. We do this by multiplying the coefficient of the first term, 1x², by the constant, –10. This will get us –10. Next, you would have to find two factors of –10 that add up to the coefficient of the middle term, which is –7. 

Factors of –10:

–10 + 1 = –9
–5 + 2 = –3
–2 + 5 = 3
–1 + 10 = 9

As you can see, no factors of –10 add up to –7. Therefore, this trinomial is prime. In other words, you could only get this trinomial by multiplying it by 1 to get itself. 

Hope this helped you out! :-)
3 0
3 years ago
Other questions:
  • 1. Which of the following does not need to be done when constructing a frequency
    14·2 answers
  • What is an example of an Apostrophe in the poem Ode to thanks? This is worth 61 points, and will mark brainliest for the first c
    10·2 answers
  • Monica is mixing some custom colored paint for her house. The color she wants requires 3/4 ounces of blue dye and 2/3 of an ounc
    8·1 answer
  • What is the smallest positive number that can be added to 55 so that the resulting number and 45 have 9 as their greatest common
    14·1 answer
  • A Bluray player costs $225 before tax the sales tax is %8 what is the total cost of the burly player ?
    14·1 answer
  • Is -|-4| = |-(-4)| the same?
    12·2 answers
  • Please get the sample response.
    10·2 answers
  • In parallelogram ABCD shown, point E and F are located on diagonal BD and point G is located on side AB such that GE and CF are
    7·1 answer
  • I do not understand the final part of this question?
    6·1 answer
  • Correct answer will get brainliest
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!