Answer:
12 cats or B
Step-by-step explanation:
Because there are 3 more dogs than cats and if there is 2 cats for every 5 dogs, 5x6=30 so 2x6=12.
The equivalent expression is 15x + 104 /4
<h3>What are algebraic expressions?</h3>
Algebraic expressions are defined as expressions comprised of constants, variables, terms, coefficients and factors.
They are also made up of arithmetic or mathematical operations such as;
- Addition
- Subtraction
- Division
- Multiplication
- Bracket, etc
Given the expression:
2(3/4x+7) - 3(1/2x-5)
solve for the bracket
3 ( 3x + 28/4) - 3 (x - 10 /2)
expand the bracket by multiplying
9x + 84 / 4 + 3x + 10/ 2
Find the lowest common multiple
9x + 84 + 6x + 20 /4
collect like terms
15x + 104 /4
Thus, the equivalent expression is 15x + 104 /4
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To solve this formula, we can simply use the formula of half-life of a radioactive substance to calculate the decay rate.
The disintegration constant or decay rate is calculated as 0.385min^-1
<h3>Half-Life</h3>
The half-life of a radioactive substance is defined as the time taken for the initial mass of the substance to reach half it's starting mass.
The formula is given as
Let's substitute the value into the equation and solve through
The disintegration constant or decay rate is calculated as 0.385min^-1
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Answer:
$147.95
Step-by-step explanation:
9.25*11=101.75
385*.12=46.2
101.75+46.2=147.95