Answer:V = 72.1 cm³ - 50.0 cm³ = 22.1 cm³
D = mV=99.7g22.1cm³ = 4.51 g/cm³
Step-by-step explanation:
d = mV
m = d×V
V = md
DENSITY
Density is defined as mass per unit volume.
d = mV
Example:
A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?
Step 1: Calculate the volume
V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³
Step 2: Calculate the density
d = mV = 433g200cm³ = 2.16 g/cm³
MASS
d = mV
We can rearrange this to get the expression for the mass.
m = d×V
Example:
If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?
m = d×V = 500 mL × 1.11g1mL = 555 g
VOLUME
d = mV
We can rearrange this to get the expression for the volume.
V = md
Example:
What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.
Step 1: Convert kilograms to grams.
14.83 kg × 1000g1kg = 14 830 g
Step 2: Calculate the volume.
V = md = 14 830 g × 1cm³19.32g = 767.6 cm³
Answer:
A tortoise walks 3 inches in 1 second. How many feet per second can the tortoise walk?
To answer the question, you need to write a conversion factor to convert
inches to feet
The correct conversion factor has the inches in the
denominator
The correct conversion factor has the feet in the
numerator
.
The tortoise can walk
0.25
feet per second.
by-step explanation:
hope this helps :)
Answer:
The tortoise can walk 0.25 feet per second.
Step-by-step explanation:
Convert inches to feet
ΔDEF ≅ ΔSRU
ΔDEF ≅ ΔRSU
ΔDEF ≅ ΔRUS
Answer: B.) ΔDEF ≅ ΔSRU
Step-by-step explanation:
The answer is correct on Edge.
B. 18.3
C. 15.7
D. 19.1
I keep getting 18.3 as my answer, but I feel like I'm doing something wrong. Can somebody please explain and show me how to do this correctly? I don't think I'm doing it right :(
Answer:
a1 = 11
a2 = a1 +6=11+6 = 17
a3= a2 +6=17+6= 23
a4= a3+6= 23+6= 29
a5= a4+6= 35
O
Commutative Property
O Associative Property
O Transitive Property
Answer:
Distributive Property (first option)
Step-by-step explanation:
We apply here the distributive property in order to eliminate parenthesis. That is to "distribute" the factor that is outside (3) into the two terms inside the parenthesis, which cannot be combined because they are not like terms.
Step-by-step explanation:
The greatest common factor (GCF) of 27 and 45 is 9.
27 + 45
9 (3 + 5)
9 (8)
72
The expression 27 + 45 is rewritten using the Greatest Common Factor (GCF) and the distributive property as 9*(3 + 5) = 72.
The given expression is 27 + 45. To rewrite this using the Greatest Common Factor (GCF) and the distributive property, we first find the GCF of the two numbers. The GCF of 27 and 45 is 9. We then divide each number by the GCF and rewrite the expression using the distributive property.
So, 27 + 45 = 9*(3 + 5) = 9*8 = 72.
The above step is the application of the distributive property, where a*(b + c) = ab + ac.
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