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3 years ago

A bakery can make 320 cookies in 2 hours. At this rate, how many cookies can they make in 5 hours?

Mathematics

2 answers:

Lapatulllka [165]3 years ago

8 0

800

800800

800

statuscvo [17]3 years ago

3 0

160 hr. Then 160*5 is 800

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For which values of k does the system of linear equations have zero, one, or an infinite number of solutions? [Note: not all thr

viktelen [127]

Answer:

The system has an infinite solution at k = 6, otherwise for any value of k, it has zero solution.

Step-by-step explanation:

Consider the system of linear equations:

$3x_{1} -x_{2}=2\;\;\;\;\;\;(1)\\ 9x_{1} -3x_{2}=k\;\;\;\;\;(2)$

The system of linear equations can have zero, one, or an infinite number of solutions:

simplify equation (1):

$x_{2}=3x_{1} -2$

substitute in equation (2), we get

$9x_{1} -3(3x_{1}-2)=k\\9x_{1} -9x_{1}+6=k\\0+6=k$

we cannot find the value of $x_{1}$ and $x_{2}$ .

so, there is no solution.

Multiply the equation (1) with 3 and put k is 6,

$3(3x_{1} -x_{2})=3\times2\\9x_{1} -3x_{2})=6$

it means both equations are overlapped. Then, the solution has infinite solutions.

Hence, the system has an infinite solutions at k is 6 otherwise for any value of k it has no solution.

4 0

3 years ago

How do I solve this? :)

topjm [15]

U,U you need to divide how many cards in total the subtract and mulitply them

3 0

3 years ago

Which of the following completes the statement?In the number 45,569, the 5 in the hundreds place is _________________ the 5 to i

Murljashka [212]

Answer: D.

100 times the value of

Step-by-step explanation:

8 0

3 years ago

If I ride a bicycle at a rate of 5m/s,how long will it take me to ride a distance of 12km at the same rate?

Travka [436]

Step-by-step explanation:

given,velocity = 5 m/s

and distance=12×1000=12000m

now,time =?

we have , v=s/t

or, t= s/v

so,t=12000/5

2400sec.....ans

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3 years ago

Write a subtraction expression with a positive and negative integer whose difference is negative. Then find the difference

horrorfan [7]

Answer:

-20-15=-35

Step-by-step explanation:

I think this answers your question, sorry if I'm wrong!

5 0

2 years ago