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DochEvi [55]
4 years ago
11

Can you guys help please with all of the questions please

Mathematics
1 answer:
Alex17521 [72]4 years ago
8 0

Answer:

Step-by-step explanation:

a) $1.60 and $2.25

b)Unit rate

20 pens for $1.60

One pen=\frac{1.60}{20}=0.08

25 pens for $2.25

onepen=\frac{2.25}{25}=0.9

c)20 pens for $1.60 is best buy

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3 years ago
What is C. PLEASE HELP ME IM SO CONFUSED!!!
vichka [17]
100-28-48-8= 16%


Hope it helped
5 0
3 years ago
The cook at the diner has 72 eggs.her recipe says each omelet needs 3 eggs .Does the cook have enough eggs to make 24 order
Anna007 [38]

Answer:

Yes she has just enough

Step-by-step explanation:

3 eggs per each order of omelet

24 orders so 3x24=72

5 0
4 years ago
I need help please answer quick!
Mazyrski [523]

Answer:

3in. is the answer

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3 0
3 years ago
What is the equation of the quadratic function that has a minimum at (7,-3) and goes through (9,9)?
SOVA2 [1]

Answer:

y = 3x² - 42x + 144

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

here (h, k) = (7, - 3), thus

y = a(x - 7)² - 3

To find a substitute (9, 9) into the equation

9 = 4a - 3 ( add 3 to both sides )

12 = 4a ( divide both sides by 4 )

a = 3

y = 3(x - 7)² - 3 ← in vertex form

Expand factor and simplify

y = 3(x² - 14x + 49) - 3

  = 3x² - 42x + 147 - 3

  = 3x² - 42x + 144 ← in standard form

4 0
3 years ago
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