<span><span>The answer would be 2
-8/2</span>÷<span>6/-3
</span></span><span>=<span>-8 × -3/2 × 6
</span></span><span>=<span>24/12
</span></span><span>=<span>24 ÷ 12/12 ÷ 12
</span></span><span>=<span>2
</span></span>
Answer:
The number of nickels is 45 and the number of dimes is 72.
Step-by-step explanation:
Let
x ----> number of nickels
y ----> number of dimes
Remember that
so
------> equation A
------> equation B
<em>Solve the system by substitution</em>
we have
------> equation A
------> equation B
Multiply both equations by 100 both sides
----> --> equation C
----> equation D
substitute equation C in equation D
solve for y
Find the value of x
<em>Alternative Method</em>
Solve the system by graphing
Remember that the solution is the intersection point both graphs
using a graphing tool
the solution is the point (45,72)
therefore
The number of nickels is 45 and the number of dimes is 72.
X+x+20+2x=180
4x+20=180
4x=160
x=40
A kite has 4 sides and 4 angles.
Two angles are congruent and two angles are not.
The fact that two angles are congruent may help you.