Ask question

Ask question

All categories

2 years ago

7

In a particular classroom, a student who did not study scored 60 points on a test. If that student scored 90 points when studyin

g for three hours, what is the rate of change of his score per hour studied?

1 answer:

Oksanka [162]2 years ago

5 0

30 points over 3 hours equals: 10 points/hr

You might be interested in

Two roller coasters are vying for the title of the steepest drop the first ride has a hill that drops 140 feet in a 40 foot run

muminat

Answer:

They have the same slope

Step-by-step explanation:

Given

Coaster 1:

$Drops = 140ft$

$Run = 40ft$

Coaster 2:

$Drops = 105ft$

$Run = 30ft$

First, we calculate the slope (m) of both coasters

$m = \frac{Rise}{Run}$

$m = \frac{Drops}{Run}$

For coaster 1:

$m = \frac{140ft}{40ft}$

$m = \frac{140}{40}$

$m = 3.5$

For coaster 1:

$m = \frac{105ft}{30ft}$

$m = \frac{105}{30}$

$m = 3.5$

<em></em> $m = m=>3.5 = 3.5$ <em></em>

<em>By comparison, they have the same slope</em>

8 0

2 years ago

Scorpion4ik [409]

3 + (2 + 8)^2 / 4 * (1/2)^4
3 + 10^2 / 4 * (1/2)^4
3 + 100/4 * (1/2)^4
3 + 25 * 1/16
3 + 25/16
48/16 + 25/16
73/16
4 9/16 <==

3 0

2 years ago

Can someone please help me with this

lord [1]

Number 1
37.50 divide by 5.25 and the answer is 7

4 0

2 years ago

What is the value of x and y?

omeli [17]

Answer:

y=70 x=20

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The student council is selling rolls of gift wrap and ribbon for the holiday season. The council charges $10 for a roll of gift

NikAS [45]

Answer:

10g + 3.5r ≥ 2,500

Hope this helps!

4 0

2 years ago

Read 2 more answers