Answer:
.018 Kg/cm^3
Step-by-step explanation:

Density (P) is equal to the mass (9.9g) divided by volume (.55cm^3)

= 18g/cm^3
=.018kg/cm^3
Answer:
The area of the wall that she will paint in two rolls is <u>219.8 inches²</u>.
Step-by-step explanation:
Given:
Jenny uses a roller to paint a wall. The roller has a radius of 1.75 inches and a height of 10 inches.
Now, to find the area of the wall that she will paint in two rolls.
So, we find the lateral surface area of roller.
Radius (r) = 1.75 inches.
Height (h) = 10 inches.
So, to get the lateral surface area we put formula:



Thus, the lateral surface area of the roller = 109.9 inches².
Now, to get the area of wall that she will paint in two rolls we multiply 2 by the lateral surface area of the roller:

Therefore, the area of the wall that she will paint in two rolls is 219.8 inches².
Let: eq 1:2x+5y=-55
eq 2:y=3x+6
by substituting eq 2 in eq 1 we get,
2x+5(3x+6)=-55
2x+15x+30+55=0
17x + 85=0
x=-85/17
x=-5
By substituting x value in eq 2,
we have,
y=3(-5)+6=-15+6=-9
Answer:
A) 370
Explanation:
Answer:

Step-by-step explanation:
Since we're given that a batch requires 3 and one fourths cups of sugar, this is written as

If she wants 6.5 batches then we just cross multiply
1 batch=
6.5 batches=x
X=
X=
X=
X=
X=