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
Mandarinka [93]
3 years ago
15

Maria wants to solve the following system using the elimination method: 4x + 9y = 59 x + y = 17 What number should the equation

x + y = 17 be multiplied by to eliminate y? 4 −4 9 −9
Mathematics
2 answers:
Archy [21]3 years ago
7 0
\left\{\begin{array}{ccc}4x+9y=59\\x+y=17&|multiply\ both\ sides\ by\ (-9)\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x+9y=59\\-9x-9y=-153\end{array}\right}\\.\ \ \ -5x=-94
lesya [120]3 years ago
5 0

Answer:

we will multiply equation x+y=17 by (-9)

Step-by-step explanation:

Maria has two equations to solve by elimination method:

4x + 9y = 59 ---- (1)

x +y = 17 ----------(2)

To start with elimination method we will multiply equation (2) by (-9) first,

-9x - 9y = -153  -------(3)

Now we will add equation (1) to equation (3)

4x + 9y = 59

<u>-9x - 9y = -153</u>

-5x  = -94

5x = 94

x = 94/5

By putting x = 94/5 in equation (2)

\frac{94}{5}+ y = 17

y = 17 - \frac{94}{5} = \frac{85-94}{5}

= (\frac{-9}{5})

Answer :  we will multiply equation x+y=17 by (-9)

You might be interested in
I feel sad... I feel like no one loves me... I feel like I'm all alone... I want to be a cloud that just moves around without ha
nikdorinn [45]

Answer:

Why  do you feel sad

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What's 1/2 x 3 1/2, I'm only in 6th grade so I don't know much, if you respond with the correct answer, thank you a lot.
andrezito [222]

Answer:

1 75/100 or 3/4

Step-by-step explanation:

if you simplify 1 75/100 its 3/4

8 0
3 years ago
Read 2 more answers
What is 5 + 72?<br><br> a 81<br> b 72<br> c 5<br> d 62
maxonik [38]

The answer is 77 but i don't see it as an option here ;/

6 0
3 years ago
Dennis needs to fix a leaky roof on his house but does not own a ladder. He thinks that a 25-foot ladder will be
Mars2501 [29]

Answer:

Step-by-step explanation: 2/8 =h/2

3 0
2 years ago
Isosceles trapezoid ABCD has legs AB and CD, and base BC. If AB = 3y - 4, BC = 2y -3, and CD = 4y - 18, find the value of y.
Kryger [21]

Answer:

   (6)

Step-by-step explanation:

Since it is an isosceles trapezoid the length of the two legs (i.e.  AB = 5y-10 and CD = 2y+8) are equal.  In other words,

5y - 10 = 2 y + 8

Subtract 2y from each side:

5y - 2y - 10 = 8

Now add 10 to each side

5y - 2y - 10 + 10 = 8 + 10 =>

3y + 0 = 18 =>  

3y = 18 =>

y = 6

8 0
3 years ago
Other questions:
  • Solve: -4.878-(-8.96)=
    5·2 answers
  • PLZZ HELP Which expression is the factored form of −1.5w+7.5 ?
    14·1 answer
  • Raphael is traveling in a straight line at a constant speed from point A to point B. His distance from point B in miles is -20t+
    11·1 answer
  • The population of a town increased from 3500 in 2006 to 5350 in 2011. Find the absolute and relative (percent) increase.
    15·1 answer
  • HELP PLEASE A cylinder and its dimensions are shown. Which equation can be used to find V, the volume of the cylinder in cubic c
    9·1 answer
  • Help me more 10 points
    7·1 answer
  • I’m not sure how to do angle relationships, so what is angle cbd?
    8·1 answer
  • What is the value of x in the equation , when ?
    9·1 answer
  • BIG IDEAS MATH Chapter 8: Surface Areas of Pyramids &gt; Section Exercises 8.3 &gt; Exercise 7 Previous 7 Item 4 Find the surfac
    5·2 answers
  • Which of the following pairs of numbers has a least common multiple of 48 ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!