Plug the number of days into the expression 4x + 6. The result is:
4 × 12 + 6
Now, solve the expression using the PEMDAS strategy. (Parenthesis, Exponents, Multiplication, Division, Addition, & Subtraction)
Multiply 4 by 12.
4 × 12 = 48
Add 6 to the product.
48 + 6 = 54
<h2>Answer:</h2>
<u>The expression is </u><u>4 × 12 + 6</u><u> and the answer to the expression is </u><u>54</u><u>.</u>
Answer:
The atomic number is equal to the number of <u>protons</u> in an atom
The atomic number tells you the number of protons in one atom of an element. It also tells you the number of electrons in a neutral atom of that element. The atomic number gives the “identity “of an element as well as its location on the Periodic Table.
Step-by-step explanation:
The atomic number is the number of protons in an atom of an element. For example, krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus.
Answer:
x= -3
Step-by-step explanation:
Answer:
The interest earned in a year was $1080.
Step-by-step explanation:
Since the money was invested at a simple interest rate, then the amount earned in one year is given by the following formula:
M = C*r*t
Where M is the amount earned, C is the amount invested, r is the rate of interest and t is the time elapsed. Applying the data from the problem, we have?
M = 20000*(5.4/100)*1
M = 20000*0.054
M = 1080
The interest earned in a year was $1080.
Comment
The question is the same as drawing a Black marble. That's one way to look at it. Another is to draw a gray and then subtract that probability of not drawing a gray. I'll do both. Choose the one that is clearest in your mind.
Method One
Total number of marbles = 21 + 11 = 32 marbles of both colors. Probability of drawing a black marble =
P(B) = P(~gray) = 11 / 32
Method Two
A. Find the probability of drawing a gray marble.
There are 21 gray marbles and 32 total
P(G) = Number of Gray's / total
P(G) = 21 / 32
P(~G) = 1 - 21/32
P(~G) = 32/32 - 21/32
P(~G) = 11/32 <<<< Answer