replace Y = 5x - 13
into
4x + 3y = 18



4x + 3 (5x - 13) = 18
4x + 15 - 39 = 18
4x -24 = 18
4x = 18 +24
4x = 42
x = 42/4
x = 10.5

Y = 5(10.5) - 13
= 52.5 - 13
= 39.5

answer: x = 10.5 and y = 39.5

3 0

3 years ago

Select the correct answer.

iris [78.8K]

The future value of $1,000 invested at 8% compounded semiannually for five years is $\bold{\$ 1,480}$

Solution:

$\bold{A = P (1 + i )^{n}}$ ----------- equation 1

A = future value

P= principal amount

i = interest rate

n = number of times money is compounded

P = 1000

i = 8 %

$\mathrm{n} = \text { compounding period } \times \text {number of years}$

(Compounding period for semi annually = 2)

$\mathrm{n} = \text { compounding period } \times \text {number of years}$

Dividing “i” by compounding period

$i = \frac{8 \%}{2} = 0.04$

Solving for future value using equation 1

$\begin{array}{l}{A = 1000(1 + 0.04)^{10}} \\\\ {=1000 (1.04)^{10}}\end{array}$

$= 1480.2$

$\approx 1,480 \$$

3 0

3 years ago

[Help] Classify the following triangle. Check all that apply.

Sonja [21]

The triangle is obtuse since it has an angle more than 90 degrees.
It also has 2 equivalent sides that are represented by the line, meaning it is isosceles.
Therefore,
C. and E. are correct.
Do you mind giving a clickie wickie to the THANKS or MARK AS BRAINLIEST! button if anyone else answers? It would be greatly appreciated. Thank you sooo much!

5 0

3 years ago