In order to construct this equation, we will use the variables:
V to represent mixture volume (40 ml)
C to represent mixture concentration (0.32)
v₁ to represent volume of first solution (40 / 4 = 10 ml)
c₁ to represent concentration of first solution (0.2)
v₂ to represent the volume of the second solution (40 * 3/4 = 30 ml)
c₂ to represent the concentration of the second solution
We know that the total amount of substance, product of the volume and concentration, in the final solution is equal to the individual amounts in the two given solutions. Thus:
VC = v₁c₁ + v₂c₂
40(0.32) = 10(0.2) + 30c
Complete the statement to describe the expression ab+cd+ef+ghab+cd+ef+gha, b, plus, c, d, plus, e, f, plus, g, h. The expression
solmaris [256]
Answer:
The expression contains FOUR terms and each term contains TWO factors.
Step-by-step explanation:
In algebra, the word term refers to single numbers(10), variables<em>(</em><em>y</em><em>)</em> also the product of the two(<em>10y</em>).
In the given expression : <em>ab+cd+ef+gh .</em>
We have four terms;
A factor is part of a product. For the given equation we Four terms each term will have two factors.
- <em>ab</em>- is a product of factor a and b
- <em>cd- </em>is a product of factor<em> c </em>and<em> d</em>
- <em>ef-</em>is a product of factor<em> e </em>and<em> f</em>
- <em>gh-</em>is a product of factor<em> g </em>and<em> h </em>
Answer:
t =log(20) / 0.3 = 10*log(20) / log(1,000) - years - when the tree will have 100 branches.
Step-by-step explanation:
100 = 5 * 10^(0.3t), solve for t
Divide both sides by 5:
20 =10^(0.3t)
Take the log of both sides:
0.3t =log(20)
Divide both sides by 0.3:
Multiply the RHS by 10 / 10
t =log(20) / 0.3 = 10*log(20) / log(1,000) - years - when the tree will have 100 branches.
