4 years ago

Solve the system of equations using the substitution method. -5x − 3y = 16 y = x

Mathematics

2 answers:

Elena-2011 [213]4 years ago

6 0

Answer:

(-2, -2)

Step-by-step explanation:

Make use of the 2nd equation to eliminate x or y in the 1st equation:

-5x - 3(x) = 16

Then -8x = 16, and x = -2. Since we are told that y = x, y = -2.

The solution is (-2, -2).

max2010maxim [7]4 years ago

3 0

Answer:

-5x - 3x = 16

-8x = 16

x = -2

y = x

Step-by-step explanation:

You might be interested in

Troy assembles wooden toya at Tindall's Toy Shoppe. He is paid $1.46 for each snake, $1.11 ab each fan, and $1.74 for each teddy

Ilia_Sergeevich [38]

Answer:

$3005.98

Step-by-step explanation:

did the math with calculator

3 0

3 years ago

The residuals for data set A and data set B were calculated and plotted on

nlexa [21]

Answer is :

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Tina wants to save money for school. Tina invests $400 in an account that pays an interest rate of 7.5%.

Over [174]

Here's the given:
P=$400
i=7.5%
A=$8500

The formula used for this problem is:
A = P(1+i)^t

Manipulating the equation to arrive at t, we have:
t = ln(A/P) / ln(1+i)

Plugging in values:
t = ln($8500/$400) / ln(1+0.075)
<span>t = 42.26 years</span>

7 0

3 years ago

If p-1/p = 4 Find (p+1/p)²

DiKsa [7]

Answer:

Step-by-step explanation:

$\frac{p - 1}{p} = 4$

Solve for p.

The numerator. difference has to be 4 times the answer of the denomiator.

So we can say

$p - 1 = 4p$

Solve for p

$- 1 = 3p$

$p = - \frac{1}{3}$

Now plug this in for the other formula.

$( \frac{ - \frac{1}{3} +1}{ \frac{1}{3} } ) {}^{2} = 2 {}^{2} = 4$

7 0

3 years ago

E) que características tienen las gráficas que representan una relación de proporcionalidad directa entre la cantidad de agua en

jekas [21]

Answer:

here is a videos look it up on you tube and it might help

Step-by-step explanation:

search this

Interpreting graphs of proportional relationships

7 0

3 years ago