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
True [87]
3 years ago
9

Solve this question fast....in the attachment​

Mathematics
1 answer:
avanturin [10]3 years ago
4 0

Answer:

z = 4

y = -1

x = 2

Step-by-step explanation:

x - y = 3

Therefore => x = 3 + y

y + 2z =7

Therefore => y= 7 - 2z

We have the equation :

2x + 3y + 4z = 17

2(3 + y) + 3(7 - 2z) + 4z = 17

6 + 2y + 21 - 6z +4z = 17

2(7 -2z) - 2z + 27 = 17

14 - 4z - 2z + 27 = 17

-6z + 41 = 17

-6z = -24

z = 4

You might be interested in
Miguel napped for 2 2/5 hours. Danalya napped too. Combined they napped for 3 3/4 hours
SVEN [57.7K]

Answer:

Danalya napped 1 7/20 hours.

Step-by-step explanation:

Rewriting our equation with parts separated

=3+3/4−2−2/5

Solving the whole number parts

3−2=1

Solving the fraction parts

3/4−2/5=?

Find the LCD of 3/4 and 2/5 and rewrite to solve with the equivalent fractions.

LCD = 20

15/20−8/20= 7/20

Combining the whole and fraction parts

1+7/20= 1 7/20

4 0
3 years ago
Read 2 more answers
Which point is closest to 7 on the number line?<br> ET<br> C0
liraira [26]

Answer: ET

Step-by-step explanation:

7 0
3 years ago
If it takes 15 gallons of gas to drive 330 miles how many miles can be driven using 20 gallon of gas
Iteru [2.4K]
15 / 330 = 20 / x...15 gal. to 330 miles = 20 gal to x miles
cross multiply because this is a proportion
(15)(x) = (20)(330)
15x = 6600
x = 6600/15
x = 440 <=== 20 gallons will take u 440 miles
3 0
3 years ago
Find the value of x that makes this equation true, just write a number for your answer. Use / for writing fractions
Tcecarenko [31]

Answer:

1/15

Step-by-step explanation:

The first thing to do is to change both denominators so that they're the same. In this case, that would be 15.

Then, whatever you do to the denominator, you must also do to the numerator.

\frac{9}{15} + x = \frac{10}{15}

X = 1/15

6 0
3 years ago
Read 2 more answers
Plzzzzz help due in a few minutes and will fail if not answered by this plzzzzzz help can not figure out!!!!!!!! Will give brain
gulaghasi [49]
You want it to be 14 by 16 tiles to recreate King Kyle’s tomb.
6 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangle with an area of 22 square units
    12·1 answer
  • Find the future value (FV) of the annuity due. (Round your answer to the nearest cent.) $175 monthly payment, 7% interest, 11 ye
    9·1 answer
  • Find the absolute value of -14.
    15·2 answers
  • The corners of a triangle are (2,1), (4,4), and (6,2). Which system of inequalities describes the interior of the triangle?
    15·1 answer
  • Match each word to the appropriate example using the expression 5a + 9b - 4.
    5·2 answers
  • We’re doing slopes please HELPP I’ll mark brainliest
    13·1 answer
  • I need help with this.
    7·1 answer
  • Move the numbers to the lines to order them from least to greatest.
    14·1 answer
  • A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer
    12·2 answers
  • Help me pleaseeeeeee
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!