MATHEMATICS MIDDLE SCHOOL

Paul's family drove 377 miles to the beach averaging 58 mi/h on the way there. On the return trip home, they averaged 65 mi/h. What was the total time Paul's family spent driving to and from the beach?

A.
11.3 h

B.
11.6 h

C.
12.3 h

D.
13 h

Answers

Answer 1

Answer: The answer would be 12.3 i hope this helps=)

Answer 2

Answer:

Answer:

12.3

Step-by-step explanation:

I took the test online in K12 and when I reviewed it said that 12.3 is the correct answer.

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Find six tenths of 80cm
A triangle with 50 cm, 15 cm, 50 cm, and 22° is what type of triangle?

How do you do this problem?

Answers

The pythagorean theorem states that a² + b² = c².
We have a = 10 and c = 20.
100 + b² = 400
Subtract 100 from each side.
b² = 300
Get the square root of 300.
It could be expressed as b ≈ 17.321, or could stay in radical form as $√(300)$ .
Hope this helps!

Evaluate 50 + 0.5 ×(41 - 32)

Answers

To solve this expression, we need to follow the order of operations (BEDMAS)

50+0.5(41-32)
=50+0.5(9)
=50+4.5
=54.5

Your answer is 54.5

Solve the equation
5(-4a+8)-5(6a-5)=15

Answers

Step 1: Simplify both sides of the equation.

5(−4a+8)−5(6a−5)=15

(5)(−4a)+(5)(8)+(−5)(6a)+(−5)(−5)=15

−20a+40+−30a+25=15

(−20a+−30a)+(40+25)=15

−50a+65=15

Step 2: Subtract 65 from both sides.

−50a+65−65=15−65

−50a=−50

Step 3: Divide both sides by -50.

-50a/-50=-50/-50

Therefore, the answer would be a=1.

We can factor 5 at the left hand side:

$5[(-4a+8)-(6a-5)]=15$

Divide both sides by 5:

$(-4a+8)-(6a-5)=3 \iff -4a+8-6a+5 = 3$

Sum like terms:

$-10a+13=3$

Subtract 13 from both sides:

$-10a=-10$

Divide both sides by -10:

$a=1$

Combine the like terms to simplify the expression:9 + 3 + 17xy^2 + 8y^3 + 10x –13xy^2 – 9x – 6y^3

Answers

the llike terms are {17xy^2, -13xy^2} {9, 3} {8y^3, -6y^3} {10x, -9x} first combine 9 and 3 now your new equation is 12 + 17xy^2 + 8y^3 + 10x –13xy^2 – 9x – 6y^3 then add 17xy^2 and -13xy^2 your new equation is 12 + 4xy^2 + 8y^3 + 10x – 9x – 6y^3 now combine 8y^3 and 6y^3 your new equation is 12 + 4xy^2 + 2y^3 + 10x – 9x now combine 10 and -9x and your answer is 12 + 4xy^2 + 2y^3 + x

$9 + 3 + 17xy^(2) + 8y^(3) + 10x - 13xy^(2) - 9x - 6y^(3)$

1) First, we have to start simplifying the algebraic symbols.

2) We have to separate those from the normal numbers.

3) There will be different types of algebraic symbols : group the similar ones and start simplifying.

$-\ \textgreater \$ $17xy^(2) - 13xy^(2) + 8y^(3) - 6y^(3) + 10x - 9x + 9 + 3$

=> $4xy^(2) + 2y^(3) + 1x + 12$