Answer: 35
the age of Roberto is x (x > 3)(x ∈ N)
because Roberto is 3 years older than Carolyn => the age of Carolyn is x - 3
in 7 years, the age of Roberto is x + 7; the age of Carolyn is x - 3 + 7 = x + 4
because In 7 years the sum of their ages will be 81 =>
x + 7 + x + 4 = 81
⇔ 2x + 11 = 81
⇔ 2x = 70
⇔ x = 70/2 = 35
=> the age of Roberto is 35
Step-by-step explanation:
So the store bought 9 cases of lightbulbs and in a case, there are 48.
9 * 48 = the number of lightbulbs in the nine cases. 432 is the number of light bulbs in the 9 cases they bought in May. So then let's move on to the cases they bought in June. Do the same thing 8 * 48 is 384. So then add the two amounts together and then you will get 816 which will be your answer. I hope this helps!
Answer:
C) Rolling an even number is female and an odd number is male.
Step-by-step explanation:
because it would be an even chance for each sex (Male and female)
Hope this helps
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Answer:60
Step-by-step explanation:
There are 80 chairs in all because 8 rows x 10 chairs per row. The first people fill two rows which is 20 chairs because each row is 10 chairs so 60 chairs are left
Answer:
The answer is
<h2>4m ( m + 3x) ( m - 2)</h2>
Step-by-step explanation:
4m³ + 12xm² - 8m² - 24xm
Factorize the GCF out
The GCF of 4 , 12 , 8 and 24 is 4
So we have
4( m³ + 3xm² - 2m² - 6xm)
Next factor m out
We have
4m( m² + 3xm - 2m - 6x)
Factorize the terms in the bracket
That's
4m[ m( m + 3x) - 2 ( m + 3x) ]
Next factor ( m + 3x) out
We have the final answer as
<h3>4m ( m + 3x) ( m - 2)</h3>
Hope this helps you
