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3 years ago

Write the sentence as an inequality. 5 is no greater than 4 times a number minus 2.5.

Mathematics

1 answer:

garri49 [273]3 years ago

8 0

Answer:

5 ≤ 4x - 2.5

Step-by-step explanation:

Inequalities

The expression "no greater than" can be better expressed as "less or equal than".

The expression 4 times a number, being x the unknown number can be written: 4x

Thus, the equivalent inequality of the sentence is:

5 ≤ 4x - 2.5

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A trail is 2 miles long. There is a marker every 1/8 mile. How many markers are there?

attashe74 [19]

Answer:

Step-by-step explanation:

Number of Markers =

$2 \div \frac{1}{8} \\ = 2 \times 8 \\ = 16$

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3 years ago

HELP ME PLEASE I NEED HELP

Olin [163]

Step-by-step explanation:

You should prolly subtract 2 from both sides first.

So you get, -|2/5x + 3| > -1 2/5

Add three to both sides
-|2/5x| = -1 2/5
Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5

One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

$-( \frac{2}{5}x + 3 ) < 1 \frac{2}{5}$

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs

Subtract 3 from both sides

-|2/5x| < -1 and 3/5

Divide 2/5 from each side to get x < -4

I hope I'm correct, my bad if I'm wrong

6 0

3 years ago

Read 2 more answers

After every eighth visit to a restaurant you receive a free beverage. After every tenth visit you receive a free appetizer. If y

Kaylis [27]

Answer:

40th and 80th visit

the first visit where you receive both is the 40th

Step-by-step explanation:

personally, I believe that the simplest way to solve this is use an excel spreadsheet to see which visits would include both a free beverage and a free appetizer:

both rewards would happen only twice, at the 40th and 80th visit.

you can also calculate it mathematically since multiples of 8 and 10 do not repeat themselves very much, only when 8 is multiplied by 5 and 10.

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3 years ago

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Which equation supports the given conjecture? The difference of two odd numbers is an even number. A. 23 – 19 = 4 B. 16 – 10 = 6

MissTica

Answer: A. 23 – 19 = 4

23 and 19 are odd
4 is even
23-19: difference of two odd numbers

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3 years ago

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ExtremeBDS [4]

Answer:

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Step-by-step explanation: I just looked it up hope that answers your question.

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2 years ago