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PIT_PIT [208]
3 years ago
10

Sarah's Coffee House is open on each weekday for a 1 2 hour. It is open twice as long on weekends. How long does Sarah's Coffee

House stay open on Saturday?
Mathematics
2 answers:
Leviafan [203]3 years ago
7 0

Answer:

24 hours

Step-by-step explanation:

if on weekdays its 12 hours and weekends twice as long on weekends then

2*12= 24 hours on saturday

Elan Coil [88]3 years ago
7 0

Answer:

2 × 12 hours = 24 hours.

Step-by-step explanation:

Sarah's coffee house is open each weekday for 12 hours . This means on week days which are Monday, Tuesday, Wednesday, Thursday and Friday she opens her coffee shop for 12 hours each day . Then on weekends she opens her shop for twice as long . This means she opens her shop 2 times the time she usually opens (12 hours).

it can be computed mathematically as

2 × 12 hours = 24 hours.

Since she opens her shop for 12 hours on week days, twice the hours she spent on weekend is 12 ×  2 = 24 hours.

Note that the question asked how long she opens on Saturday. Saturday and Sunday are weekend.  Since the information of how long she open on weekends is known, that means how long she opens on Saturday which is regarded as weekend can be computed.   

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KN bisects ZJKM. If mZNKJ = 7x-9 and<br> m2JKM = x + 3, find m2JKN.
BaLLatris [955]

Answer:

Step-by-step explanation:

7x - 9 = x + 3

6x - 9 = 3

6x = 12

x = 2

7(2) - 9 + 2 + 3

14 - 9 + 5

5 + 5 = 10

5 0
3 years ago
No copy and paste answers.
miss Akunina [59]

Answer:

  2.5 miles

Step-by-step explanation:

The relation between time, speed, and distance is ...

  distance = speed × time

We can define t to be Stanley's swimming time. Then t+0.5 was his running time, and 2(t+0.5) was his biking time. His total distance covered is ...

  64 = 9(t +0.5) +16(2(t +0.5)) +2.5(t)

  64 = 43.5t +20.5 . . . . . . . simplify

  43.5 = 43.5t . . . . . . . . . subtract 20.5

  t = 1 . . . . . . . . . . . . . . divide by the coefficient of t

Stanley swam for 1 hour, so the distance he covered while swimming was ...

  (2.5 mi/h)(1 h) = 2.5 mi

Stanley covered 2.5 miles while swimming.

_____

<em>Additional comment</em>

Stanley ran for 1.5 hours, covering 9×1.5 = 13.5 miles. He biked for 3 hours, covering 16×3 = 48 miles. His total distance was 2.5 +13.5 +48 = 64 miles, as given.

6 0
2 years ago
What will be the cost price of a television when
astra-53 [7]
3+3+4+3+-3+4-66+44+3=34x
4 0
3 years ago
The polynomial function y = x3 -3x2 + 16x - 48 has only one non-repeated x-intercept. What do you know about the complex zeros o
earnstyle [38]
• First way to solve:
We'll manipulate the expression of the equation:

y=x^3-3x^2+16x-48\\\\ y=x^2(x-3)+16(x-3)\\\\ y=(x-3)(x^2+16)

If we have y=0:

x-3=0~~~or~~~x^2+16=0\\\\ x=3~~~or~~~x^2=-16\\\\ x=3~~~or~~~x=\pm\sqrt{-16}\\\\ x=3~~~or~~~x=\pm4i

Then, the function has one real zero (x=3) and two imaginary zeros (4i and -4i).

Answer: B


• Second way to solve:

The degree of the function is 3. So, the function has 3 complex zeros.

Since the coefficients of the function are reals, the imaginary roots are in a even number (a imaginary number and its conjugated)

The function "has only one non-repeated x-intercept", then there is only one real zero.

The number of zeros is 3 and there is 1 real zero. So, there are 2 imaginary zeros.

Answer: B.
3 0
2 years ago
The currency in Peru is the Nuevo Sole. The exchange rate is approximately $1 = 3 Nuevo Soles. At this rate, how many dollars wo
Alexus [3.1K]
You would get $3 because the conversion rate is 1:3 so divide 9 by three
4 0
3 years ago
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