Answer:
z = 12xy
Step-by-step explanation:
Given z varies jointly with x and y then the equation relating them is
z = kxy ← k is the constant of variation
To find k use the condition when x = 2 and y = 3, z = 72, that is
72 = k × 2 × 3 = 6k ( divide both sides by 6 )
12 = k , then
z = 12xy ← equation of variation
Answer:
Numbers, symbols and operators (such as + and ×) grouped together that show the value of something.
Step-by-step explanation:
Examples:
• 2 + 3 is an expression
• 3 − x/2 is also an expression
Does not let me write the answer so I screen shot it hope it helps.
answer is 23
Answer:
105
Step-by-step explanation:
every 3 days, 7 bees are added.
10x3=30 (days)
10x7=70 (bees)
70+35=105