Answer:
A. 3/20
Step-by-step explanation:
since there are 3 marbles, and 20 total marbles, you have a 3/20 chance of picking yellow
Answer:
4%
Step-by-step explanation:

A = final amount
P = initial amount
r = interest rate per time period
n = number of times compounded per time period
t = number of time period
A = 3932.82
r = what we want to find
n = 2
t = 6

divide both sides by 3101 to isolate the exponent and its parts

put both sides to the power of (1/12) to help isolate the variable

subtract 1 from both sides to isolate the variable and its coefficient

multiply both sides by 2 to get r

r ≈ 0.04 = 4%
X in litres is 67% herbicide
y in litres is 46% herbicide
{x+y=42
{0.67x+0.46y=42*0.55
{67x+46y=2310
{46x+46y=1932
21x=378
x=18 litres
A. She need to use 18L
(4^2 + 7) * 4 - 5 + 7
<em><u>Parentheses first.</u></em>
23 * 4 - 5 + 7
<em><u>Multiplication.</u></em>
92 - 5 + 7
<em><u>Subtraction.</u></em>
87 + 7
<em><u>Addition.</u></em>
94 is the final answer.