So r+c=42
c=4+r
subsitute c=4+r for r in r+c=42
r+4+r=42
add like terms
2r+4=42
subtract 4 from both sides
2r=38
divide both sides by 2
r=19
rob=19
subsitute r=19 for r in c=4+r
c=19+4
carly=23
Answer:
Decimal: 695.36
Fraction: 695 and 9/25
Step-by-step explanation:
Answer:
$1600
Step-by-step explanation:
4%/100 ×10,000
= $400
30,000-10,000
=20,000
=20,000×6/100
=$1200
=1200+400
=$1600
This construction demonstrate that the set of points equidistance from the endpoints of a line segment is the perpendicular bisector of the segment
So,
For every 2 large notebooks Ann orders, she orders 1 small notebook.
This can be stated as a ratio: 2:1
Add up the units to find the value of each unit.
2 + 1 = 3
Divide 48 by 3 to get the unit value.
48/3 = 16
The unit value is 16.
The number of large notebooks Ann orders is 2(16):16
This is a 2:1 ratio.
Therefore, Ann ordered 32 large notebooks and 16 small notebooks.
