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
seropon [69]
1 year ago
12

PLEASE HELPPP!! Solve the system of equations.

Mathematics
1 answer:
sdas [7]1 year ago
5 0

Answer:

<u>x= 4 </u>

<u>y= -2</u>

<em>Step-by-step explanation:</em>

-3y+5x=26\\-2y-5x=-16

Solve by using the <u>Elimination Method.</u>

-5y=10\\\\\frac{-5y}{-5} =\frac{10}{-5} \\\\y=-2

Now plug y into one of the original equation.

=======================================

-2y-5x=-16

(-2*-2)-5x=-16

4-5x=-16

4-5x+5x=-16+5x

4+16=-16+5x+16

20=5x\\\\\frac{20}{5} =\frac{5x}{5} \\\\x=4

=======================================

\left \{ {{x=4} \atop {y=-2}} \right.

You might be interested in
How to graph 14x+18y=126
Burka [1]

  • We need to rearrange this into y=my+c
  • Subtract 14x from both sides
  • 18y=-14x+126
  • Divide both sides by 2
  • 9y=-7x+63
  • Divide both sides by 9
  • y=\frac{-7x+63}{9}=\frac{-7x}{9} +\frac{63}{9}
  • Plot the point (0, 63/9)
  • Then pick some x values and put them into the equation to find the respective y values
  • Then plot those points
  • Finally join up those points
4 0
2 years ago
Jimmy's costume requires ⅞ + ½ + 1 3/4 yards of fabric. His sister's costume requires 3 x (⅞ + ½ + 1 ⅔) the amount of fabric tha
liq [111]

Answer:

The correct answer is fabric Jimmy's sister needs = \frac{73}{8} × fabric Jimmy needs = \frac{73}{8} × \frac{25}{8} yards of fabric.

Step-by-step explanation:

Jimmy's costume requires ⅞ + ½ + 1 \frac{3}{4} yards of fabric = \frac{7}{8} +\frac{4}{8} + \frac{14}{8} = \frac{25}{8} yards.

His sister's costume requires 3 x (⅞ + ½ + 1 ⅔) the amount of fabric that Jimmy needs = 3× (\frac{21}{24} + \frac{12}{24} + \frac{40}{24} ) yards of what Jimmy needs = \frac{73}{8} yards of what Jimmy needs.

The relationship between how much fabric Jimmy needs and how much fabric his sister needs is given by

Fabric Jimmy's sister needs = \frac{73}{8} × fabric Jimmy needs = \frac{73}{8} × \frac{25}{8} yards of fabric.

7 0
3 years ago
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPP
Lynna [10]

Answer:

157

Step-by-step explanation:

8.00 +(0.06x) = 18.27

0.08x = 18.27 - 6.00

0.08x = 12.56

12.56/0.08=

157

4 0
3 years ago
PLEASE HELP ITS FOR A MAJOR TEST
GuDViN [60]

Answer:

57

Step-by-step explanation:

the sum of those two interior angles is equal to the exterior (116), so y = 15 and the measure of angle A is 57 if you plug it in

6 0
2 years ago
Read 2 more answers
Lana's little sister needs to take a bubble bath. The package says to put in a drop of bubble bath for every half gallon of wate
ElenaW [278]

24 drops of bubble bath

Step-by-step explanation:

this is because the ratio is .5 gallon:1 drop, so 12 gallons would be 24 drops. I hope this helps!

4 0
3 years ago
Other questions:
  • 79 divided by 50,165
    13·1 answer
  • Robert needs enough mulch to cover the triangular garden shown below. If one bag of mulch covers 12 square feet, how many bags o
    15·2 answers
  • 3 1/4 cups - 1/4 of a cup=
    12·2 answers
  • If f(x) = 2х2 +1 and g(x) = х2 -7, find (f-g)(x).
    13·1 answer
  • project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability dis
    15·1 answer
  • I know the answer just need the step-by step work
    14·1 answer
  • Find the GCF of the following literal terms.<br><br> m^7 n^4 p^3 and mn^12 p^5
    6·1 answer
  • An equations'system
    13·1 answer
  • Plz help ill give brainliest
    10·1 answer
  • If you spend $60 for dinner at the restaurant, what should be your 15% tip?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!