The displaced volume of the water, because of the submersion of the object, is equal to the volume of the object.

So to find the volume of the object we calculate the difference in volume of water:
33.1-25.1 = 8 ml

Since 1 mL of water has the volume of 1cm^3, then the volume of the object is 8 cm^3.

The density of the object is found by the formula:

density= mass/volume= (3 g) / (8 cm^3) = 3/8 (g/cm^3)= 0.375 g/cm^3

Answer: 0.375 g/cm^3

7 0

4 years ago

Can someone show me how to do 18 and 19 like with work too

Sveta_85 [38]

Answer:

Step-by-step explanation:

Question 18:

arc SRQ = 360° - 98° - 115° = 147°

y = 147°/2 = 73.5°

arc SPQ = 98° + 115° = 213°

x = 213°/2 = 106.5°

Sorry, I don't know how to answer 19.

7 0

3 years ago

harkovskaia [24]

Answer:

There was 5% increase in visitors from last year to this year.

Step-by-step explanation:

Given:

Number of Visitors at theme park last year = 2000000

Number of Visitors at theme park this year = 2100000

We need to find the percent increase in visitors from last year to this year.

First we will find Number of increase in visitors from last year to this year.

Number of increase in visitors is equal to Number of Visitors at theme park this year minus Number of Visitors at theme park last year.

Framing in equation form we get;

Number of increase in visitors = 2100000 - 2000000 = 100000

Now Percent of increase in visitors is can be calculated by dividing Number of increase in visitors with Number of Visitors at theme park last year and then multiplied with 100.

Framing in equation form we get;

Percent of increase in visitors = $\frac{100000}{2000000}\times 100 = 5\%$

Hence There was 5% increase in visitors from last year to this year.

7 0

3 years ago