P(A) = P(8) + P(9) + P(10) = 3/10 so P(A complement) = 1 - P(A) = 1 - 3/10 = 7/10 - D
Answer:
Adrian would spend exactly $4,284.
Step-by-step explanation:
Multiply the cost by the number of products purchased:
$238 x 18 = $4,284
Have a good day :)
Answer:
Smaller number: 12
Greater number: 31
Step-by-step explanation:
Hi there!
Let x equal to the smaller number.
Let y be equal to the greater number.
<u>1) Translate the information into equations</u>
"One is 7 more than twice the other"
⇒ 
"The sum of the numbers is 43"
⇒ 
<u>2) Use substitution to solve for the smaller number</u>

Plug the equation
into the above equation

Subtract both sides by 7

Divide both sides by 3 to isolate x

Therefore, the smaller number equates to 12.
<u>3) Use substitution to solve for the greater number</u>

Plug in x as 12

Subtract both sides by 12 to isolate y

Therefore, the greater number equates to 31.
I hope this helps!
Answer:
a.$4165
b.$4956.35
Step-by-step explanation:
a)19% × 3500 = 665.
3500+665 =4165
b)19% × 4165 =<u> </u><u>7</u><u>9</u><u>1</u><u>.</u><u>3</u><u>5</u>
<u>4</u><u>1</u><u>6</u><u>5</u><u>+</u><u>7</u><u>9</u><u>1</u><u>.</u><u>3</u><u>5</u><u>=</u><u> </u><u>4</u><u>9</u><u>5</u><u>6</u><u>.</u><u>3</u><u>5</u>