Answer
39 bills of 1$
16 bills of 10$
Step-by-step explanation:
x-nr of $1
y-nr of $10
x*1+y*10=199
x+y=55 , x=55-y
so I use the substitution method
(55-y)*1+10y=199
55+10y-y=199
-55 -55
9y=144
y=144/9
y=16
so x=55-16
x=39
verify 16*10+39*1=160+39=199
<h2>6 π cm</h2><h2>-------------------------------</h2>
<u>Step-by-step explanation:</u>
diameter = 6cm
radius = diameter ÷ 2
= 6 ÷ 2
= 3cm
circumference = 2π × radius
= 2 π × 3cm
= 3π cm
<h2>-----------------------------</h2><h2>FOLLOW ME</h2>
Using the equation of the line
y -yo = m (x-xo)
We substitute xo,yo and the slope
y -5 = -8(x-1) .....> y = -8x +8 +5 = -8x +13
y = -8x +13
The sum of 5 and 8 is 13.
Unknown number is x
So 13x=42
x=4
