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Temka [501]
3 years ago
15

the students are selling cookies at a school fair. sara is selling 3 cookies for 2.49 dollars. B. how much would it cost to buy

20 of the cookies?
Mathematics
1 answer:
Alex3 years ago
3 0
It will cost $16.6 to buy 20 cookies. Hope it help!
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4. Write an equation for the line that is parallel to the given line and that passes
pentagon [3]

Answer:

y=\frac{5}{2}x-14

Step-by-step explanation:

Hi there!

<u>What we need to know:</u>

  • Linear equations are typically organized in slope-intercept form: y=mx+b where m is the slope and b is the y-intercept (the value of y when x is 0)
  • Parallel lines always have the same slope

<u>1) Determine the slope (m)</u>

y=\frac{5}{2}x-10

In the given equation, \frac{5}{2} is in the place of m, making it the slope. Because parallel lines have the same slope, the line we're currently solving for therefore has a slope of \frac{5}{2}. Plug this into y=mx+b:

y=\frac{5}{2}x+b

<u>2) Determine the y-intercept (b)</u>

y=\frac{5}{2}x+b

Plug in the given point (-6,-29) and solve for b

-29=\frac{5}{2}(-6)+b

Simplify -6 and 2

-29=\frac{5}{1}(-3)+b\\-29=(5)}(-3)+b\\-29=-15+b

Add 15 to both sides to isolate b

-29+15=-15+b+15\\-14=b

Therefore, the y-intercept is -14. Plug this back into y=\frac{5}{2}x+b:

y=\frac{5}{2}x-14

I hope this helps!

4 0
2 years ago
Solve the following equation 5x-15=50
denis-greek [22]
X=13 I say.................
5 0
3 years ago
Read 2 more answers
Please help me on this will give you brainliest!!
vovangra [49]

Answer:

∠3 would be 134° because it is alternate interior to ∠5

∠2 would be 46° because it is supplementary to ∠1

Hope this helped

4 0
3 years ago
I have included a picture of the equation <br><br>​
Alchen [17]

Answer:

it's c , x= 1.5 or -4

2x^2 + 5x - 12 = 0

First factor the left side of the equation

(2x-3)(x+4)=0

Second, set the factors equal to 0

2x-3=0 or x+4=0

 +3  +3       -4  -4

2x=3           -4

divide both side by 2 and you get 3/2 which equals 1.5

x=1.5 or x= -4

3 0
2 years ago
What is the value of e?<br> 1190<br> c<br> a<br> O A. 22°<br> OB. 48°<br> 0 C. 61°<br> O D. 180°
DiKsa [7]

Answer:

C. 61 degrees

Step-by-step explanation:

a line is 180 degrees

so e and 119 degrees makes a line

so you subtract 180-119= 61 degrees

4 0
2 years ago
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