When you determine the place value of a number, you usually start from right to left. The order is as follows:
units (a number followed by no zeroes), tens (a number followed by 1 zero), hundreds (a number followed by 2 zero), thousands (a number followed by 3 zero), ten thousands (a number followed by 4 zero) and finally a hundred thousands (a number followed by 5 zero).
Based on this:
<span>770, 070 in expanded form is:
</span>(7x100000) + (7x10000) + (0x1000) + (0x100) + (7x10) + (0)
X=one type that cost 9
y=one type that cost 8
total books=type1+type2
total books=13
x+y=13
the total cost=cost of each added together
cost of each=number of books times cost per book
total cost=108
9x+8y=108
we have
x+y=13
9x+8y=108
solve for x and y
multiply first equation by -8 and add to first equation
-8x-8y=-104
<u>9x+8y=108 +</u>
x+0y=4
x=4
subsitute
x+y=13
4+y=13
minus 4
y=9
4 of the $9
9 of the $8
thats how to solve
Answer:
this is Proportional
Step-by-step explanation:
0-0 there is nothing here
but 1-6 there's something
2-12 is when it become's proportional
1/6 = 2/12
Answer:
c. 84
Step-by-step explanation:
120 times .70 = 84