Answer: Roberto has 2 DIMES and 6 NICKELS.
Step-by-step explanation:
<em><u>Equation 1:</u></em> 2 * 10 = 20 cents (Dimes)
<em><u>Equation 2:</u></em> 6 * 5 = 30 cents (Nickels)
<em> </em><u><em>Solution:</em></u><em> </em>30 + 20 = 50 cents
Answer:
The given equation having only one solution i.e., "w = 3". A further explanation is provided below.
Step-by-step explanation:
The given equation is:
⇒ 
By opening the brackets, we get
⇒ 
⇒ 
On adding "83" both sides, we get
⇒ 
⇒ 
⇒ 
⇒ 
Answer:
option C
A number line with a closed circle on
and shading to the left
Step-by-step explanation:
we have

solve for x

Subtract
both sides


Divide by
both sides
--------> is equivalent to 
The solution is the interval--------> [9,∞)
All real numbers greater than or equal to 
A number line with a closed circle on
and shading to the right
Answer:
14a + 20
Step-by-step explanation:
8(a + 2) + 2(2 + 3a)
expand the bracket
8a + (8*2) + (2*2) + (2*3a)
8a + 16 + 4 + 6a
bring like terms together
8a + 6a + 16 + 4
14a + 20