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Burka [1]
3 years ago
15

Need help with these 3 ! Please help me

Mathematics
1 answer:
Slav-nsk [51]3 years ago
5 0
21. The number who responded is 600 -150 = 450. Expressed as a fraction of the total, that is
  450/600 = (150*3)/(150*4) = 3/4


22. Total fabric used is
  6*(3 1/6) +8*(2 3/4) = 19 +22 = 41 . . . . yards
Fabric unused is . . .
  50 yd -41 yd = 9 yd


23. The problem statement is ambiguous. We suppose it is intended to say that the stock increased by 1/4 of its original value. In that case, the present value is
  $2000 +$2000*(1/4) = $2500
_____
An alternate interpretation of the statement is that the amount of increase was 1/4. In that case, the present value is
  $2000 + 0.25 = $2000.25
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What is a good word problem for 5(x+3)=170
Tatiana [17]

think of something and someone I can't really answer this question right now but if you want you can give me 1 star but I hope you get your question answered and <u><em>have a WONDERFUL day</em></u>

8 0
3 years ago
Determine which trig function can be used to solve for x. Then, solve for x, 48° 17 Make sure your calculator is operating in "D
Mrrafil [7]

Answer:

x=18.9

Step-by-step explanation:

tan48=x/17

17tan(48)=x

18.9=x

7 0
3 years ago
How many hours do they have to work before they go to the movies
lorasvet [3.4K]

Answer:

25 months

Step-by-step explanation:

Plan A : $70 per month

Plan B : $50 per month + $500 as a one time cost.  

So for A $70 a month would take 8 months to be at least $500

And for B it in those 8 months it would cost you $900

But we have to keep going up until they are equal

25*70 = 1750

(25*50) = 1250+500=1750

So yes 25 months is correct

7 0
3 years ago
Write an equation of a line parallel to the line y=-2x+8 and passes through the point (-1,-3)​
saul85 [17]

Answer: y=–2x–5

Step-by-step explanation:

The equation of a straight line:

y=mx+c

m must be the same for the two lines to be parallel.

y=mx+c

y=–2x+8 → m=–2

For a new equation:

x=–1, y=–3, m=–2, c=?

y=mx+c → –3=–2×(–1)+c

–3=2+c

c=–5

So:

y=–2x–5

5 0
3 years ago
For the function f given by f(x)=2x-3, find and simplify the difference quotient f (x + h) − f (x) h​
Ber [7]

\text{Given that,}~ f(x) = 2x-3\\\\\text{Now,}\\\\~~\dfrac{f(x+h)-f(x)}{h}\\\\\\=\dfrac{2(x+h)  -3  - (2x-3)}{h}\\\\\\=\dfrac{2x+2h-3 -2x +3 }{h}\\\\\\=\dfrac{2h}{h}\\\\\\=2

7 0
2 years ago
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