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3 years ago

Help please it is due today

Mathematics

1 answer:

Svet_ta [14]3 years ago

8 0

Answer:

Jane's situation is the one which represents a porportional relationship.

Step-by-step explanation:

To verify the proportionality betwen a ratio you have to divide all the ratios and all them have to get the same constant factor.

So, if you divide the matt's ratios you aren't gonna find the same constant factor

12/1=12

20/2=10

31/2=15,5

But if you try with Jane's ones:

12/1=12

24/2=12

36/3=12

This 12 is the known constant factor, which show us that these ratios are proportional.

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Twice the sum of a number and thirty-two

monitta

Answer:

2(x + 32)

Step-by-step explanation:

Let "a number" = x

Note "the sum (addition) of a number and thirty-two" = x + 32

"Twice (of the above)" (multiplication) = 2(x + 32)

2(x + 32) is your answer.

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3 years ago

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Maria is 8 years older than her brother, and the sum of their ages is 72 years. How old is her brother?

Elena L [17]

Answer:

Step-by-step explanation:

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2 years ago

Mike has 21 pounds of tomatoes and 9 pounds of mixed peppers from his garden that he will use to make sals.

Grace [21]

The number of batches of salsa that can be made = x = 6 batches

The number of bat tomato sauce that can be made = y = 3 batches

Step-by-step explanation:

We are given the system of equations:

$x+5y=21\\x+y=9$

where variable x represents the number of batches of salsa that can be made and y represents the number of bat tomato sauce that can be made.

We need to solve the systems to find the values of x and y.

Let:

$x+5y=21\,\,\,eq(1)\\x+y=9\,\,\,eq(2)$

Subtract both equations:

$x+5y=21\\x+y=9\\-\,\,\,-\,\,\,\,\,\,-\\------\\4y=12\\y=\frac{12}{4}\\y=3$

So, value of y=3

Putting value of y in eq(2) and finding value of x:

$x+y=9\\x+3=9\\x=9-3\\x=6$

So, value of x=6

The number of batches of salsa that can be made = x = 6 batches

The number of bat tomato sauce that can be made = y = 3 batches

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

6 0

3 years ago

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Which equation is equivalent to 2/3 x -5 / 6 equals -5 / 12 x + 1 / 4

cluponka [151]

Answer:

13x=13

Step-by-step explanation:

...............

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2 years ago

Can someone explain to me how to do question number 6 please?

slavikrds [6]

Hope this helps but try to do process of elimination.

7 0

2 years ago