Answer and explanation:
Algebra is based on the basic concept of representing figures with letters called variables that are used in finding the unknown numbers. Algebra basically goes from known to unknown in finding unknown values. For example if we know that a particular product was bought 2 times but we do not know the price at which it was bought then we could represent this value as 2a or 2p whatever letter is chosen. If we also know that the total price of what was bought is for example $50 we could then equate this value 2a to $50, 2a=$50 to find price per product =$25.
Algebras could also be in form of expression called algebraic expressions and used in equations such as the above 2a=$50. Algebraic expressions could take the form 2a+3b for example where a and b may be prices of different products bought 2 units and 3 units respectively
If Car A's speed is x, then Car B's speed is x-22. Using the formula, we get that the distance is the same in both, so 4*(x-22)=D and 2.4*x=D due to that we plug 2.4 and 4 in for T and x-22 and x for R. Since they both equal D, we can write it as 2.4*x=4*(x-22). Using the distributive property, we get 4*(x-22)=4x-88=2.4*x. Subtracting 2.4*x from both sides as well as adding 88, we get 1.6*x=88. Dividing both sides by 1.6, we get 88/1.6=55= x=Car A's speed
Answer:
a meter (when using the metric system)
Answer:
yes
Step-by-step explanation:
