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3 years ago

(Giving brainliest! Pls have at least one sentence to explain why you chose the answer :) )

Mathematics

2 answers:

Allushta [10]3 years ago

7 0

Answer:The awnser is

Step-by-step explanation:

because rodney sold half her copies

Kryger [21]3 years ago

4 0

Answer:

Step-by-step explanation:

Hope it helps

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Help me solve this please

Wewaii [24]

Answer:

z - y = x

Step-by-step explanation:

6 0

3 years ago

PLEASE HELP ME ILL GIVE YOU POINTS

Elena-2011 [213]

I think its B.) because if u count it all properly u would realize that they would all have to same numbers to match

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Clfloor%5Cdfrac%7Bx%5E2%2B1%7D%7B10%7D%5Crfloor%2B%5Clfloor%5Cdfrac%7B10%7D%7Bx%5E2%2B1%7D%5

GrogVix [38]

Answer:

See below

Step-by-step explanation:

This equation is solved if one of the following 2 conditions is met

(x² + 1) / 10 is between 1 and 2

and

10 / (x² + 1) is between 0 and 1

<u>Solve this:</u>

1 < (x² + 1) / 10 < 2
10 < x² + 1 < 20
9 < x² < 19
3 < |x| < √19
x ∈ (- √19, - 3) ∪ (3, √19)

0 < 10 / (x² + 1) < 1
x² + 1 > 10
x² > 9
|x| > 3

Solution for this case is x ∈ (- √19, - 3) ∪ (3, √19)

(x² + 1) / 10 is between 0 and 1

and

10 / (x² + 1) is between 1 and 2

<u>Solve this:</u>

0 < (x² + 1) / 10 < 1
0 < x² + 1 < 10
- 1 < x² < 9
0 ≤ |x| < 3
x ∈ ( - 3, 3)

1 < 10 / (x² + 1) < 2
x² + 1 < 10 ⇒ x² < 9 ⇒ |x| < 3
x² + 1 > 5 ⇒ x² > 5 ⇒ |x| > √5

Solution for this case is x ∈ (- 3, - √5) ∪ (√5, 3)

8 0

3 years ago

What is the equivalent expression for 2/3 - 4/5 ?

Brrunno [24]

Answer:

-2/15

Step-by-step explanation:

Generally, if two things are the same, then it is called equivalent. the equivalent expressions are the expressions that are the same, even though the expression looks different.

we can see -

2/3-4/5= -2/15

and

-2/15 = 2/3-4/5

8 0

3 years ago

A surf shop rents surfboards and charges x dollars for one rental day. it gives a discount for a weekly seven day rental and onl

Artyom0805 [142]

A. The shop charges $8.517 for a one-day rental

B. The shop charges $42.857 for a weekly rental.

Step-by-step explanation:

Step 1; The shop charges $x for a one-day rental and $5x for a weekly rental. Assume $x = a and $5x = b, from this we can write,

5a = b, take this as equation 1.

Step 2; The shop had a total sale of $600 by renting 20 boards for a one-day rental and 10 boards for a weekly rental. So,

20a + 10b = 600, take this as equation 2.

Substituting equation 1 in 2, we get

20a + 10 (5a) = 600,

20a + 50a = 600, a = 600 / 70,

a = $8.5714.

From equation 1, 5a = b,

5 × $8.5714 = b,

b = $42.857.

So for a one-day rental, the shop charges $8.5714 and for a weekly rental it charges $42.857.

6 0

3 years ago