Javier bought 48 sports cards at a yard sale. Of the cards, 3/8 were baseball cards. How many cards were baseball cards?
2 answers:
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Answer: y = -x + 7
Step-by-step explanation:
The slope is , so we know the equation is of the form
.
Substituting in the coordinates (1,6) to find b,
Thus, the equation is y = -x + 7
Answer:
- $9 and $7
Step-by-step explanation:
<u>The first equation:</u>
- x + 2y = 23
<u>The second equation:</u>
- 2x + 3y = 39
<u>Convert to slope-intercept form:</u>
- x + 2y = 23 ⇒ 2y = -x + 23 ⇒ y = -1/2x + 11.5
- 2x + 3y = 39 ⇒ 3y = -2x + 39 ⇒ y = -2/3x + 13
<em>The graph is attached</em>
<u>Intersection point is (9, 7)</u>
- Adult tickets cost $9
- Child tickets cost $7
