Evaluate the expression for a=3, b=5, and c=10. (You will get a single number for your answer.)

Question

6a+4b −3c=

Question 2
Evaluate the expression for x=3.5 and y=1.8. 2.4x + 6.2y

Answer 1

Let's evaluate each expression step by step.

Question 1: Evaluate the expression \(6a + 4b - 3c\) for \(a=3\), \(b=5\), and \(c=10\).

Substituting the values into the expression:

\[ 6(3) + 4(5) - 3(10) \]

Calculating each term:

\[ 6 \cdot 3 = 18 \] \[ 4 \cdot 5 = 20 \] \[ 3 \cdot 10 = 30 \]

Now combine the results:

\[ 18 + 20 - 30 = 38 - 30 = 8 \]

So, the answer for Question 1 is:

\[ \boxed{8} \]

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Question 2: Evaluate the expression \(2.4x + 6.2y\) for \(x=3.5\) and \(y=1.8\).

Substituting the values into the expression:

\[ 2.4(3.5) + 6.2(1.8) \]

Calculating each term:

\[ 2.4 \cdot 3.5 = 8.4 \] \[ 6.2 \cdot 1.8 = 11.16 \]

Now combine the results:

\[ 8.4 + 11.16 = 19.56 \]

So, the answer for Question 2 is:

\[ \boxed{19.56} \]