Identify the hypothesis of the statement.If AB is a segment, then it has two endpoints.

David was in need for some money so he decided to clean out the water fountain at the mall he found 20 nickels and quarters. The

Shkiper50 [21]

Answer:

David find 8 quarters.

Step-by-step explanation:

Given:

David was in need for some money so he decided to clean out the water fountain at the mall he found 20 nickels and quarters.

The collection of nickels and quarters totaled to 2.6.

Now, to find the quarters David find.

Let the number of nickels be $x$

And the number of quarters be $y$

Thus, the number of nickels and quarters he found:

$x+y=20.$

⇒ $x=20-y$ .........( 1 )

The totaled of nickels and quarters:

$0.05x+0.25y=2.6$

(As 1 nickel=$0.05 and 1 quarter=$0.25)

Now, putting the equation ( 1 ) in the place of $x$ we get:

$0.05(20-y)+0.25y=2.6$

⇒ $1-0.05y+0.25y=2.6$

⇒ $1+0.20y=2.6$

Subtracting both sides by 1 we get:

⇒ $0.20y=1.6$

Dividing both sides by 0.20 we get:

⇒ $y = 8.$

So, the quarters = 8.

Therefore, David find 8 quarters.

3 0

3 years ago

As a farmer, Felipe keeps a close eye on the weather. After a few stressful weeks with no rain, Felipe was relieved when it star

Sladkaya [172]

Answer:

The time it took until 2 inches of rain fell is 8 hours

Step-by-step explanation:

You know that the proportional relationship between the amount of time (in hours) it had been raining, x, and the amount of rain (in inches) it had fallen, y, is y = 0.25*x

To find the time that passed until 2 inches of rain fell, you must replace the amount of rain (in inches) that had fallen "and" by that value. In this way the following expression is obtained:

2= 0.25*x

Solving:

$\frac{2}{0.25}=x$

8 = x

So, remembering that the amount of time it had been raining, x, is expressed in hours, the time it took until 2 inches of rain fell is 8 hours.

5 0

3 years ago

4.

fenix001 [56]

The answer is C. because 3/16 is close to 3 because how it’s estimated of the germs and gasoline is how it’s going to hit africa and south america and dacota. hope this helps!!

5 0

2 years ago

Read 2 more answers

Prove that the value of the expression 7^8–7^7 +7^6 is divisible by 43.

murzikaleks [220]

Step-by-step explanation:

1. if to evaluate the given experssion, then

7⁶(7²-7+1)=7⁶*43.

2. if to divide this evaluated expression by 43, then

7⁶*43/43=7⁶.

5 0

3 years ago