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3 years ago

Prove that there does not exist integers m and n such that 2m+4n=7

Mathematics

1 answer:

slamgirl [31]3 years ago

8 0

$2m+4n=7\iff m+2n=\dfrac72$

There is no choice of integers $(m,n)$ such that the left hand side is a rational number.

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Please show all work thank you math experts you’re the best !

Ne4ueva [31]

Answer:

1. -141

2. 0.98

3. 62.13

Step-by-step explanation:

1. 35 - 176 -> 176 - 35 = 141, then just make it negative

2. 0.55 x 1.79 = 0.9845 -> 0.98

3. 11.38 x 5.46 = 62.1348 -> 62.13

6 0

3 years ago

Pedro's Diner is open six days a week. His income for the first five days this week was

AnnZ [28]

Pedro must make $330 on the 6th day to have a mean average of $200.

Step-by-step explanation:

Formula for Mean Average

Mean Average = $\frac{Sum of data}{Total number of data}$

DATA:

1st day = $120

2nd day = $110

3rd day = $200

4th day = $300

5th day = $140

6th day = x

Solution:

Mean Average = $\frac{Sum of data}{Total number of data}$

200 = $\frac{120+110+200+300+140+x}{6}$

200*6 = 870+x

1200 - 870 = x

x = 330

Pedro must make $330 on the 6th day to have a mean average of $200.

Keyword: Mean

Learn more about mean at

#LearnwithBrainly

6 0

3 years ago

A student has a monthly budget of $800. She can spend her budget on two items, X and Y. Each unit of X costs $20 and each unit o

Aleonysh [2.5K]

Answer:

Check the explanation

Step-by-step explanation:

Total utility is the overall satisfaction that a particular consumer received from consuming a given overall quantity of a good or service, To calculate the value of total utility economists utilize the following basic total utility formula: TU = U1 + MU2 + MU3

Kindly check the attached image below to see the step by step explanation to the question above.

3 0

4 years ago

There are 6 picas in 1 in. If a line of type is 3 3/4in long. What is this picas in length?

scoray [572]

Answer:

3 3/4 in length is equal to 22.5 picas

Step-by-step explanation:

If there are 6 picas in 1 in, then in 3 3/4 in, we will first take this to decimal form, which is

3.75 in

Therefor 3.75 in = 6 picas × 3.75 = 22.5 pisca

3 0

3 years ago

A vial holds 2 milliliters of pixie dust. How many vials can we fill with 13 milliliters of pixie dust?

Bezzdna [24]

Answer: 6 and a half

Step-by-step explanation: 13 is an uneven number so you divide 13 by 2 and get 6.5

3 0

3 years ago