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2 years ago

13

If there are 6 hours in a school day, 5 school days in a week, 4 school weeks in a month and 9 months in a school year, how many

hours are there in a school year?

2 answers:

MA_775_DIABLO [31]2 years ago

8 0

1080, because 6x5= 30 30x4= 120 120x9= 1080

a_sh-v [17]2 years ago

4 0

Answer: 1080 hours

Step-by-step explanation:

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9 burgers and 1 doughnut cost $31.30. 3 doughnuts and 6 burgers cost $26.70. Find the cost of 2 burgers.

kirill [66]

Step-by-step explanation:

Let assume that

Cost of 1 burger = $ x

Cost of 1 doughnuts = $ y

According to statement, 9 burgers and 1 doughnut cost $ 31.30

$\begin{gathered}\sf \: 9x + y = 31.3 \\ \\ \end{gathered}$

$\begin{gathered}\sf\implies \sf \: y = 31.3 - 9x - - - (1) \\ \\ \end{gathered}$

According to statement again, 3 doughnuts and 6 burgers cost $ 26.70

$\begin{gathered}\sf \: 6x + 3y = 26.7 \\ \\ \end{gathered}$

$\begin{gathered}\sf \: 3(2x + y) = 26.7 \\ \\ \end{gathered}$

$\begin{gathered}\sf \: 2x + y = 8.9 \\ \\ \end{gathered}$

On substituting the value of y from equation (1), we get

$\begin{gathered}\sf \: 2x + 31.3 - 9x = 8.9 \\ \\ \end{gathered}$

$\begin{gathered}\sf \: 31.3 - 7x = 8.9 \\ \\ \end{gathered}$

$\begin{gathered}\sf \: - 7x = 8.9 - 31.3 \\ \\ \end{gathered}$

$\begin{gathered}\sf \: - 7x = - 22.4 \\ \\ \end{gathered}$

$\begin{gathered}\bf\implies \: x = 3.2 \\ \\ \end{gathered}$

So,

Cost of 2 burgers = 3.2 × 2 = <u>$ 6.4</u>

5 0

1 year ago

Read 2 more answers

EASY QUESTION ASAP Is y = 5x + 6 and 10x – 2y = 3 a parallel, perpendicular or neither. Please explain !

Oduvanchick [21]

Answer:

parallel i am pretty surre

Step-by-step explanation:

4 0

2 years ago

In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If

Vesna [10]

Answer:

$Cranberry:Apple:Orange = 7:5:8$

Step-by-step explanation:

Given

$Apple = 1/4$

$Orange = 2/5$

Required

Determine the ratio of Cranberry to Apple to Orange

First, we calculate the fraction of Cranberry using:

$Cranberry + Apple + Orange = 1$

Substitute values for Apple and Orange

$Cranberry + 1/4+ 2/5= 1$

Collect Like Terms

$Cranberry = 1- 1/4- 2/5$

Take LCM

$Cranberry = \frac{20 - 5 - 8}{20}$

$Cranberry = \frac{7}{20}$

The ratio is then represented as:

$Cranberry:Apple:Orange = 7/20:1/4:2/5$

Multiply through by 20

$Cranberry:Apple:Orange = 20(7/20:1/4:2/5)$

$Cranberry:Apple:Orange = 20*7/20:20*1/4:20*2/5$

$Cranberry:Apple:Orange = 7:5:8$

8 0

2 years ago

You inherit $5000 from your long lost Uncle Harold. The bad news is that the money must sit in a bank account for the next ten y

erastovalidia [21]

Answer:

5360

Step-by-step explanation:

5000*1.072=5360

6 0

1 year ago

Me zachary brings 264 ounces of water to basketball practice for the players to drink . Ifmr zachary didvides the water equally

Mila [183]

Answer:

3 ounces.

Step-by-step explanation:

We have been given that Me Zachary brings 264 ounces of water to basketball practice for the players to drink. Mr Zachary divides the water equally among the 9 players. We are asked to find the amount of water that is left over.

To find the amount of water that is left over, we will take out the largest multiple of 9 from 264.

Let us divide 264 by 9.

9) 264(29

<u> 18</u>

84

<u> 81</u>

3

We can see that remainder in 3, therefore, 3 ounces of water will be left over.

3 0

3 years ago