All categories

3 years ago

Solve for X and Y with substitution

Mathematics

1 answer:

Nostrana [21]3 years ago

3 0

Answer:

1. x = no solution

y = no solution

2. x= 3

y = -4

Step-by-step explanation:

y = 5 - x

2x + 2y = 6

Divide the equation by 2.

x + y = 3

x + (5 - x) = 3

x + 5 -x = 3

x-x + 5 =3

5 =3 ⇒⇒⇒ This is not true. So, we can say that the simultaneous equation don't have a solution.

-7x - 2y = -13

x - 2y = 11

x = 11 + 2y

-7(11 + 2y) - 2y = -13

-77 - 14y - 2y = -13

-16y = 64

y = -4

x = 11 + 2(-4)

= 11 - 8 = 3

You might be interested in

Section 5.2 Problem 6: Find the general solution <img src="https://tex.z-dn.net/?f=y%27%27%20%2B%206y%27%20%2B%2010y%2

mihalych1998 [28]

Answer:

$y=e^{-3t}(A\: cos\: t+B\:sin\:t)$

Step-by-step explanation:

Given Second-Order Homogenous Differential Equation

$y''+6y'+10y=0$

Use Auxiliary Equation

$m^2+6m+10=0\\\\(m+3)^2+1=0\\\\(m+3)^2=-1\\\\m+3=\pm i\\\\m=-3\pm i$

General Solution

$y=e^{pt}(A\: cos\: qt+B\:sin\:qt)\\\\y=e^{-3t}(A\: cos\: t+B\:sin\:t)$

Note that the DE has two distinct complex solutions $p\pm qi$ where $A$ and $B$ are arbitrary constants.

4 0

2 years ago

GIVING BRAINLIST ASAP

Paraphin [41]

Answer:

Step-by-step explanation:

70.20−65.00=5.20

(5.20/65.00)×100=8

4 0

3 years ago

Read 2 more answers

draw a triangle on a graph sheet and its relation with scale factor 3 are those two figures are similar

docker41 [41]

njnjbugvcyfxgjhklkhjghxc bnmkjhgfdcvbnkkjhgfStep-by-step explanation:

5 0

3 years ago

Barbara mixes 54 ounces of granola and 36 ounces of raisins.She divides the mixture into 6 ounce servings.How many servings does

Sindrei [870]

Hello!

If Barbara mixes 54 ounces of granola and 36 ounces of raisins, the overall mixture will equal 90 ounces. In order to find the amount of servings that Barbara makes, we must divide the total number by the other number given - 6.
Because Barbara wants to divide the mixture into 6 ounce servings, we will divide 90 by 6.
90/6=15

The answer to your question is "Barbara made 15 6-ounce servings."

I hope this helps you! Have a great day!

6 0

4 years ago

What is 10/3 as a whole number

Vladimir [108]

Answer:

Three and one third

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers