Answer:
B: 340
Step-by-step explanation:
We are told that her walls are 8 ft high.
Now, Two walls are 10 feet wide. Thus, area of the first two walls will be;
A1 = 2 × (10 × 8) = 160 sq.ft
Also, the other 2 walls are 15 feet wide.
Thus, Area of other two walls will be;
A2 = 2 × (15 × 8) = 240 sq.ft
We are told that the combined area of the 1 window and the 1 door in her room in 60 square feet.
This means that we will subtract 60 Sq.ft from the sum of the area of the 2 walls earlier calculated to get the total area to be painted.
Thus;
Area to be painted = 160 + 240 - 60 = 340 Sq.ft
yes you are right, density formula is :
density = mass ÷ vol
Complete question :
the original blueprint of a concrete patio has a scale of 2 inches=3 feet. victoria wants to make a new blueprint of the patio with a length of 16.8 inches. original blueprints length is 14 inches and original blueprints width is 12 inches. what is the scale for the new blueprint and what is the width of the blueprint with the new scale?
Answer:
2.5 fts, 14.4 fts
Step-by-step explanation:
Given that:
Scale of original blueprint : 2inches = 3 feets
To make a new blueprint with a length of 16.8 inches, the scale for the new blueprint will be :
Original scale : 2 inches = 3 feets
Original blueprint length = 14 inches
Then,
2 inches = 3 feets
14 inches = d
Cross multiply :
2d = 42
d = 21 feets
Hence, new scale for blueprint :
16.8 inches = 21 feets
2 inches = d
16.8d = 42
d = 2. 5 feets
For the width :
14 inches = 16.8 feets
12 inches = w
14w = 201.6
w = 201.6/14
Width = 14.4feets
Okay so your slope is going to be -9 because that is the rise over run for that equation. 5 is you y-intercept.
Hey there! :D
Since she walks 3/4 a mile a day, we can multiply that by 4.
3/4= .75
4*.75= 3
She walked 3 miles in 4 days.
I hope this helps!
~kaikers