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3 years ago

Evaluate the expression for x= 2 and y=4. Enter your answer in the box. 16x + 2x2 - y2

Mathematics

1 answer:

Nostrana [21]3 years ago

8 0

Answer:

Step-by-step explanation:

Step 1: Define

x = 2

y = 4

16x + 2x² - y²

Step 2: Substitute and Evaluate

16(2) + 2(2)² - 4²

32 + 2(4) - 16

16 + 8

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Answer:

The number of men was $80$

The number of women was $70$

Step-by-step explanation:

The question in English is

Having organized a bingo has raised $1900. For the entrance of men $15 and women $10 and an attendance of 150 people has been reported. Determine the number of men and the number of women who participated in the bingo.

Let

x----> the number of men

y----> the number of women

we know that

$x+y=150$

$x=150-y$ -----> equation A

$15x+10y=1,900$ -----> equation B

substitute equation A in equation B and solve for y

$15(150-y)+10y=1,900$

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$15y-10y=2,250-1,900$

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$y=70$

Find the value of x

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The number of men was $80$

The number of women was $70$

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3 years ago

Evaluate the expression for x= 2 and y=4. Enter your answer in the box. 16x + 2x2 - y2​

Evaluate the expression for x= 2 and y=4. Enter your answer in the box. 16x + 2x2 - y2