Hello ,
A + B + C = 180
B + C = 180 - 49
B + C = 131 .
Answer:
28.75 cm^3 of space not used
Step-by-step explanation:
The volume of the box is
V = 4.5* 2.5 * 7 =78.75 cm^3
The gift takes up 50 cm^3
Subtract
78.75-50 = 28.75 cm^3
There is 28.75 cm^3 of space not used
Answer:
75 + 25d > 250
d > 7
Step-by-step explanation:
Number of signatures needed : > 250
Amount of signatures ready = 75
Exoected number of signatures per day = 25
Number of days, d, needed signatures will be collected ;
Number of ready signatures + (expected number of signatures per day * number of days) > number of signatures needed
Mathematically,
75 + 25d > 250
25d > 250 - 75
25d > 175
d > 175 / 25
d > 7