Answer:
(-7, -1)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
5x - 9y = -26
-2x + 3y = 11
<u>Step 2: Rewrite Systems</u>
-2x + 3y = 11
- Multiply everything by 3: -6x + 9y = 33
<u>Step 3: Redefine Systems</u>
5x - 9y = -26
-6x + 9y = 33
<u>Step 4: Solve for </u><em><u>x</u></em>
<em>Elimination</em>
- Combine 2 equations: -x = 7
- Divide -1 on both sides: x = -7
<u>Step 5: Solve for </u><em><u>y</u></em>
- Define equation: 5x - 9y = -26
- Substitute in <em>x</em>: 5(-7) - 9y = -26
- Multiply: -35 - 9y = -26
- Add 35 on both sides: -9y = 9
- Divide -9 on both sides: y = -1
Answer:
The diameter of the circle = 10 cm
The radius of the circle= 10/2= 5 cm
Step-by-step explanation:
Area of the circle = pi r^2
= pi 5^2
=3.14 *25
= 78.5 cm ^2
Answer:
94%
Step-by-step explanation:
<u>Answer:</u>
- 33 pounds of grapes can be brought for $66.
<u>Step-by-step explanation:</u>
<u>4 pounds = $8</u>
- => 1 pound = $2
- => x pounds = $2x = $66
- => x = 33
- => 33 pounds = $66
Hence, <u>33 pounds of grapes can be brought for $66.</u>
Hoped this helped.
Answer:
0.2700
Step-by-step explanation:
-Notice that this is a binomial distribution with p=0.52, n=4 and x=3.
-The formula for the binomial probabilities is given as:
The probability than in 4, exactly 3 order their food on the go is:
Hence, the probability that exactly 3 order their food on the go is 0.2700
