2 years ago

Why are inequalities important in equations

Mathematics

1 answer:

Delicious77 [7]2 years ago

4 0

Because the tell if he number is big or small

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3m+3n=36<br> 8m+5n=31 <br> Using the process of elimination

amm1812

Answer:

m=-29/3 and n=65/3

Step-by-step explanation:

The given system has equations:

3m+3n=36

8m+5n=31

Multiply the top equation by 5 and bottom equation by 3 to get:

15m+15n=180

24m+15n=93

Subtract the top equation from the bottom equation to get:

9m=-87

Divide both sides by 9

$m = - \frac{29}{3}$

We substitute this value into the first equation to get:

$3( - \frac{29}{3} ) + 3n = 36$

$3n = 36 + 29$

$3n = 65$

$n = \frac{65}{3}$

6 0

2 years ago

Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle. She wrote a equation to find the number of drinks

Debora [2.8K]

Answer B is correct. She forgot to use a variable for 1.49. The correct equasion would be:
$1.25x + 1.49y = 100$

4 0

2 years ago

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PLEASE HURRY I NEED HELP :( The area of a regular hexagon inscribed in a circle with radius 2 is

NISA [10]

Answer:

Step-by-step explanation:

4 I think not sure

8 0

2 years ago

The vectors <4,2> and <-4,-2> are opposite directions and are orthogonal to the vector u = <2,- 4>. That’s bec

Naddik [55]

This is true since the dot product is zero

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2 years ago

A group of workers can plant 18 acres in 6 days.<br> What is their rate in acres per day?

Kamila [148]

Divide total acres by total days:

18 acres / 6 days = 3 acres per day.

The rate is 3 acres per day.

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3 years ago