The amount that Edgar borrowed from the bank is $5,000. From his mom is $2,600 while from his friend is $2,400. This can be checked using the total interest of $624.

Bank: $5,000 x 0.07 = $350
Mom: $2,600 x 0.05 = $130
Friend: $2,400 x 0.06 = $144

Adding all three results to $624.

3 0

3 years ago

The slope of line m is 7/8. If n⊥m, what is the slope of line n?

lys-0071 [83]

$k:y=m_1x+b\\l:y=m_2x+c\\\\l\ \perp\ k\iff m_1m_2=-1$
We have:
$m_1=\dfrac{7}{8};\ m_2=?$
Substitute:
$\dfrac{7}{8}m_2=-1\ \ \ \ |\cdot\dfrac{8}{7}\\\\m_2=-\dfrac{8}{7}$
Answer: D)

8 0

3 years ago

Read 2 more answers

In the isosceles △ABC m∠ACB=120° and AD is an altitude to leg BC . What is the distance from D to base AB , if CD=4cm?

WITCHER [35]

4sqrt(3)

See the diagram below.