2 years ago

Use the Substitution Method, what is the point of intersection for the following system:

Mathematics

1 answer:

Wittaler [7]2 years ago

8 0

Answer:

$2x + 2(x - 3) = 18 \\ 2x + 2x - 6 = 18 \\ 4x = 24 \\ x = 24 \div 4 = 6 \\ y = x - 3 = 6 - 3 = 3$

You might be interested in

The equation for line j can be written as y = x + 7. Parallel to line j is line k, which passes

igomit [66]

Step-by-step explanation:

parallel lines have the same gradient..

y=x+7 has a gradient of 1.

If line J which is parallel to k has a gradient of 1 then they are the same.

gradient (m) =∆y

∆x

=y- -1 = 1

x - - 3

= y + 1

x+3

y+1=x+3

y=x +3 +1

y = x + 4(equation for k)

7 0

2 years ago

Solve tan(x)(tan(x)-1)=0

sleet_krkn [62]

Answer: x=\pi n,\:x=\frac{\pi }{4}+\pi n

Step-by-step explanation:

3 0

2 years ago

A bank offers a 6% annual interest rate for a savings account. Marcus puts $8,000 into an account to save for college. How much

noname [10]

$\bf \qquad \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to& \$8000\\
r=rate\to 6\%\to \frac{6}{100}\to &0.06\\
t=years\to &1
\end{cases}$

6 0

3 years ago

Read 2 more answers

A2 + b2 = c2 12 ft 16 ft O 28 feet O 24 feet O 20 feet O 14 feet

OverLord2011 [107]

24 Feet , sorry if I’m wrong

3 0

3 years ago

Answer the question :)

inn [45]

Answer:

A. -11

Step-by-step explanation:

In the function, replace x with -2

R(x) = x^2 - 3x - 1 ➡ R(-2) = (-2)^2 - 3 × 2 -1 = -11

5 0

3 years ago