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nikitadnepr [17]
3 years ago
6

Ezra works two summer jobs to save for a laptop that costs at least $1100. He charges $15/hr to mow lawns and $10/hr to walk dog

s. This situation is modeled by: 15x + 10y ≥ 1100.
Suppose Ezra decides to also spend more than $80 on a printer. The inequality becomes

15x + 10y


.
Mathematics
2 answers:
LiRa [457]3 years ago
6 0

\\
\text{Ezra works two summer jobs to save for a laptop that costs at least }\$1100\\
\\
\text{also given that he charges 15 dollars per hour to mow lawns and }\\
\text{10 dollars per hour to walk dogs.}\\
\\
\text{so if he mow lawns for x hours and walk the dogs for y hours in summer,}\\
\text{then the inequality that modeles this data is}\\
\\
15x+10 y \geq 1100

\text{now suppose Ezra decides to also spend more than }\$80 \text{ on a printer,}\\
\text{so the total expences he want for laptop and printer is}=1100+80=1180\\
\\
\text{so now the inequality becomes: }

15 x+10 y >1180

devlian [24]3 years ago
4 0

Answer:

It becomes 15x + 10y > 1180

If <em>a</em> stays the same, <em>b</em><em> </em>must be greater than its previous value to satisfy the new inequality.

Now suppose <em>b</em><em> </em>stays the same. Then, <em>a</em><em> </em>must be greater than its previous value to satisfy the new inequality.

How is the graph if the solution affect?

- The boundary line becomes dashed

- the boundary line is translated vertically

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A segment with endpoints A (3, 4) and C (5, 11) is partitioned by a point B such that AB and BC form a 2:3 ratio. Find B.
Dima020 [189]

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We apply this both for the x-coordinate and for the y-coordinate.

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Answer:

∠ K = 35° and ∠ L = 105°

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4x + 40 = 180 ( subtract 40 from both sides )

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Thus

∠ K = 35° and ∠ K = 3x = 3 × 35 = 105°

5 0
3 years ago
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