Answer:
y = -18
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define systems</u>
y = 5x - 3
3x - 2y = 27
<u>Step 2: Rewrite systems</u>
- Define: 3x - 2y = 27
- Add 2y on both sides: 3x = 2y + 27
- Divide 3 on both sides: x = 2/3y + 9
<u>Step 3: Redefine</u>
y = 5x - 3
x = 2/3y + 9
<u>Step 4: Solve for </u><em><u>y</u></em>
- Substitute in <em>x</em>: y = 5(2/3y + 9) - 3
- Distribute 5: y = 10/3y + 45 - 3
- Combine like terms: y = 10/3y + 42
- Subtract 10/3y on both sides: -7/3y = 42
- Divide -7/3 on both sides: y = -18
Answer:
1 hr and 45 mins
Step-by-step explanation:
12:26-11:11 or 115, so an hour and 45 mins.
Hope this helps :D
Answer:
The answer is 2 out of 3
Step-by-step explanation:
Since there are only 2 girls in the class. The probability of 2 girls in the same group is low. The maximum chance of the group being all boys is 2 out of 3. The minimum is 1 out of 3, because the girls can be olin different groups.
Answer:
There are six important properties of parallelograms to know:
-Opposite sides are congruent (AB = DC).
-Opposite angels are congruent (D = B).
-Consecutive angles are supplementary (A + D = 180°).
-If one angle is right, then all angles are right.
-The diagonals of a parallelogram bisect each other.
Step-by-step explanation:
just copying the first dude should get brainlist
