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d1i1m1o1n [39]
3 years ago
8

2 very easy questions for 40 points

Mathematics
2 answers:
In-s [12.5K]3 years ago
8 0

Answer:

x=number of students

7= 40-(2 times x)

x= 16.5 or 16 beacuse you cant have half a student

x=number of hours

27= 10+ 2x

x=amanda rented the bike for 8.5 hours

Varvara68 [4.7K]3 years ago
7 0
4.a)2x+10 >27
4.b) 27-10= 17
17/2=8.5
3.a) 40-2x>7
3.b) 7-40=-33
-33/-2=16.5
So 16 students in her class
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What is the equation of the line? Write in standard form. (4,5).
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Answer:

\large\boxed{5x+4y=20}

Step-by-step explanation:

The equation of a line in slope-intercept form:

y=mx+b

m - slope

b - y-intercept → (0, b)

We have the x-intercept = 4 → (4, 0), and y-intercept = 5 → b = 5.

Therefore we have the equation:

y=mx+5

Put the coordinates of x-intercept to the equation:

0=4m+5          <em>subtract 4m from both sides</em>

-4m=5           <em>divide both sides by (-4)</em>

m=-\dfrac{5}{4}

Finally we have the equation of a line if slope-intercept form:

y=-\dfrac{5}{4}x+5

The standard form:

Ax+By=C

Convert:

y=-\dfrac{5}{4}x+5             <em>multiply both sides by 4</em>

4y=-5x+20               <em>add 5x to both sides</em>

5x+4y=20

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Step-by-step explanation:

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A jar contains 50 tickets for a drawing. Of these, 7 are winning tickets. What are the odds in favor of drawing a winning ticket
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Step-by-step explanation: 7/50 = 14/100 = .14 = 14%

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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