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
Daniel [21]
2 years ago
6

3x+2y-z+5w=20 y=2z-3w z=w+1 2w=8 Solve this system.

Mathematics
2 answers:
SCORPION-xisa [38]2 years ago
8 0

Step-by-step explanation:

or , w = 8/2

or , w = 4

i think this is the answer

drek231 [11]2 years ago
6 0

Start from the last equation:

2w = 8   ⇒   w = 4

z = w + 1   ⇒   z = 4 + 1   ⇒   z = 5

y = 2z - 3w   ⇒   y = 2•5 - 3•4   ⇒   y = -2

3x + 2y - z + 5w = 20   ⇒   3x + 2•(-2) - 5 + 5•4 = 20

⇒   3x = 9   ⇒   x = 3

You might be interested in
Given the points P(2,-1) and Q(-9,-6), what are the coordinates of the point on directed line segment PQ that partitions PQ in t
gayaneshka [121]

ANSWER

( -  \frac{23}{5} , - 4)

EXPLANATION

Given the points P(2,-1) and Q(-9,-6),the coordinates of the point that partition the directed line segment PQ in the ratio 3:2 is given by

x = \frac{ mx_2+nx_1}{m + n}

y= \frac{ my_2+ny_1}{m + n}

Where m=3 and n=2

x = \frac{ 3 ( - 9)+2(2)}{3+ 2}

x = \frac{  - 23}{5}

y= \frac{ 3( - 6)+2( - 1)}{3 + 2}

y= \frac{  - 20}{5}  =  - 4

The point is

( -  \frac{23}{5} , - 4)

4 0
3 years ago
Jared's Cafe uses 5 bags of coffee every day. How many days will 1/2 of a bag of coffee last?
Inessa05 [86]

Answer:

kgyutguyguky

Step-by-step explanation:

4 0
2 years ago
Which ordered pair is a solution to the equation 2x - 4y = 18?
weqwewe [10]
(11,1) because if you plug in x and y this answer is the only one that gives you 18 in the end
5 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!
Sonbull [250]
2x^2 - 7x - 6 = 0

x1 = \frac{- b  +  \sqrt{ {b}^{2} - 4ac }}{2a}
x2 = \frac{- b   -   \sqrt{ {b}^{2} - 4ac }}{2a}
where a=2
where b=-7
where c=-6

solve for x1 and x2

x1=4.21
x2=-0.71
6 0
3 years ago
Trever Goetz is a salesperson who is paid a monthly salary of $500 plus a 2% commission on sales. How much must he sell to earn
dedylja [7]
Whatever% of anything is just (whatever/100) * anything.

now, we know Trever makes $500 in salary and 2% on sales, let's say he sells "x" amount, how much is 2% of x?  well (2/100) * x, or 0.02x.

Therefore Trever's earnings are 500 + 0.02x, his salary plus his commission.

to earn a total of 2,000, then 500 + 0.02x = 2000, thus

\bf 500+0.02x=2000\implies 0.02x=1500\implies x=\cfrac{1500}{0.02}\\\\\\ x=75000
4 0
3 years ago
Other questions:
  • Does anyone know 8 and 9
    6·1 answer
  • Need the calculations please
    10·1 answer
  • Common factor of 54z^3 and 18z and 36z^2
    14·1 answer
  • What equation in slope intercept form represents the line that passes through the two points (2,5),(9,2)
    15·2 answers
  • Sweaters cost $39 each. This is $15 more than the price of a cap. Over the season, 725 caps were sold. What was the total sales
    8·1 answer
  • Truck has a trailer that has a length of 13 feet width of 6 feet and a height of 8 feet what is the volume of the trailer
    8·1 answer
  • HELP ME PLSS ASAP!!
    11·2 answers
  • What is the volume of the solid? Let π=3.14<br> .
    6·1 answer
  • Please help! WILL GIVE BRAINLIEST!!
    8·1 answer
  • 7 × [(25 − 2) − (2 + 3)]
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!