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3 years ago

Marissa knits caps that she supplies to several baby stores. She purchases five bundles of yarn for $62.50. Select the

Mathematics

2 answers:

poizon [28]3 years ago

6 0

Answer:

I think OA because you would need to know how much yarn for each cap and how many caps she will make

Nataliya [291]3 years ago

5 0

Answer:

i think A but not sure tell me if Im wrong

Step-by-step explanation:

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Kimmie sells custom T-shirts for $12 each at the flea market every Saturday She usually sells 36 T-shirts Kimmie surveys her cus

Phantasy [73]

Answer:

y = -2*x² + 60*x

Step-by-step explanation:

The general form of a quadratic function is:

y = a*x² + b*x + c

We need to determine a ; b ; and c. For that we have three conditions therefore

Condition 1 at x = 12 $ each T-shirts kimmie sells 36 units, then she gets

12* 36 = 432 $ or y = 432 and

432 = a(12)² + 12*b + c or 432 = 144*a + 12*b + c

Second condition selling at 13 $ each T-shirt she sells 34 , then

13*34 = 442

442 = a(13)² + 13*b + c or 442 = 169*a + 13*b + c

And the third condition

11*38 = 418

418 = a* ( 121) + 11*b + c 418 = 121*a + 11*b + c

We have a three equation system

432 = 144*a + 12*b + c (1)

442 = 169*a + 13*b + c (2)

418 = 121*a + 11*b + c (3)

We need to solve it for a, b and c

Subtracting (2) - (1) 10 = 25*a + b and subtracting (2) - (3)

24 = 48*a + 2*b

Then b = 10 - 25*a and 24 = 48*a + 2*( 10 - 25*a )

24 = 48*a + 20 - 50*a

24 - 20 = -2*a

4 = - 2*a

a = - 2 and b = 10 - 25*( -2) b = 60

Finally c is: 432 = 144*a + 12*b + c

432 = 144* ( -2) + 12*60 + c

432 = - 288 + 720 + c

432 = 432 + c

c = 0

The quadratic function is:

y = -2*x² + 60*x

8 0

3 years ago

Which expressions go in which box?

almond37 [142]

To qualify as a polynomial, the expression in question:
* Consists of one or more terms
* Variables are only with positive whole exponents
* No variables in the denominator of any term (the coefficients however, can be fractions.)

In that case the answer is most likely:

3 0

3 years ago

Evaluate each value expression for the given valueof x: 20-3x, x=5

xeze [42]

Answer:

= 5

Step-by-step explanation:

20 - 3(5)

20 - 15

= 5

7 0

3 years ago

Read 2 more answers

6. Stella saved $81. Her sister saved $9.<br> Stella saved Sortimes as much as<br> her sister.

Furkat [3]

All you do is subtract 81 from 9 and it’s 72 from what I understood from your question

4 0

3 years ago

Marjorie has 28 feet of trim to use as edging on a rectangular blanket she wants to make. What is the length and width of two bl

Drupady [299]

2L + 2W = 28 feet

One blanket could be;
2(10) ft + 2(4) ft
The second blanket could be;
2(7) ft + 2(7) ft

Because...
2(10) + 2(4) = 20 + 8 = 28 and 2(7) + 2(7) =14 + 14 = 28
hope that helps :D

6 0

3 years ago