9514 1404 393
Answer:
5
Step-by-step explanation:
Add the latter two equations and you get ...
(a +b) +(a -b) = (7) +(3)
2a = 10 . . . . . . . . . . . . . . . simplify
a = 5 . . . . . . . divide by 2
The answer is the first one:
bc its not growing by a (-)1/2 and the 3rd one just doesnt make sense
Answer:

Step-by-step explanation:


Use the formula of a² - b² = ( a + b ) ( a - b )

Hope I helped!
Best regards
A.) The clerk has - 16 oranges 20 apples 24 pears
he needs to put all three fruits into baskets without any leftover fruits
each basket should have equal amounts of each fruit
so to find the largest number of baskets he can make we have to find the highest common factor for 16,20 and 24
so lets find the factors for each of these
16 - 1,2,4,8,16
20 - 1,2,4,5,10,20
24 - 1,2,3,4,6,8,12,24
from the given factors the common factors for all three are 1,2 and 4
from these the highest factor is 4
therefore the largest number of baskets he can make are 4
in each basket there will be
4 oranges 5 apples 8 pears
answer is 4 baskets