Brendan is 30. Anna is 5 years older than Cassie and 10 years younger than Brendan. How old is Cassie
1 answer:
You might be interested in
Answer:
If:
(1)
And we have to rewrite the following expresion in terms of :
(2)
Firstly we have to rearrange the right side of equation (2) in terms of , factorizing by the common factor:
Then, we can substitute by
:
And set it equal to zero:
>>>>This is the resulting equation
Now, each term of an algebraic expresion (like the equation above) is composed of sign, coefficient, variable and exponent. The terms are separated from each other by the plus sign (+) or the minus sign (-).
In this case, the variable is and the number that multiplies the variable (the coefficient) is
, whereas the constant (which is the term with no variable) is
Answer:
Step-by-step explanation:
A proportion is an equation that defines that two ratios are equal. When the terms of a proportion are cross multiplied, the cross products are equal. Cross multiplication is the multiplication of the numerator of the first ratio by the denominator of the second ratio and the multiplication of the denominator of the first ratio by the numerator of the second ratio:
Therefore: