Please see the attachment below. Please explain.

Mathematics

1 answer:

schepotkina [342]3 years ago

7 0

Usually, you're asked to model a situation with an equation. Here, you're given the equation and asked what situation it models.

The features of the equation that are of interest are ...

multiplication of the unknown value by 17.35
comparison of that product to 624.60, expecting the product to be greater than that value

The first two offered scenarios involve addition of an unknown value, not multiplication.

The third offered scenario compares a purchase price to a budget amount. Answering a question like this involves a "less than" comparison, not a "greater than" comparison.

The last offered scenario involves finding a variable value that will result in the product 17.35x exceeding 624.60—exactly what the given inequality models.

The appropriate choice is ...

... J Daren earns $17.35 ...

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Solve the given linear Diophantine equation. A) 12x+9y=15 B) 8x+10y=17

Nookie1986 [14]

Answer:

A) (x, y) = (2-3n, 4n-1) . . . . for any integer n

B) no solution

Step-by-step explanation:

A) All coefficients have a common factor of 3, so any solution of the reduced equation will be a solution of the given equation. The reduced equation is ...

4x +3y = 5

A graph of the original shows (x, y) = (2, -1) is a solution. Then other solutions will be those values with a multiple of 4 added to y and the same multiple of 3 subtracted from x:

(x, y) = (2 -3n, 4n -1)

B) The left side of the equation is an even number for any integer values of x and y. The right side is an odd number. There can be no solution.