Answer:
C is 5x+13 D is 5x+12
Step-by-step explanation:
expand brackets
Answer:
No
Step-by-step explanation:
19=19 and 4.358=4.358
Answer:
Evaluate. To find the value of a numerical or algebraic expression. Variable. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity.
Step-by-step explanation:
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Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
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Step-by-step explanation:
