MATHEMATICS MIDDLE SCHOOL

Solve:

r
5
- 6 = -1

Answers

Answer 1
Answer: that's right, 5- 6= -1
Answer 2
Answer: If this is your question: 5r - 6 = -1 then keep reading

1) Write the question.
5r - 6 = -1

2) Bring the -6 to the other side by doing the inverse, +6 to both sides
5r = 5

3) Divide both sides by 5, to get the value of r
r = 1

The above is the answer :)

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Emmett participated in a race. During the race, he ran 5 miles north and then ran 12 miles west. What is the shortest distance that Emmett must travel to return to the starting point?

Answers

I'd suggest you sketch this situation.  If you did, you'd likely see right away that the shortest distance back to the starting point would be the hypotenuse of the right triangle whose legs are of lengths 5 miles and 12 miles.

Apply the Pythagorean Theorem to solve this.

Solving Linear Equat
Solve the linear equation:
3.4 + 2(9.7 – 4.8x) = 61.2

Answers

Answer:

Step-by-step explanation:

3.4 + 19.4 - 9.6x = 61.2

22.8 - 9.6x = 61.2

-9.6x = 61.2 - 22.8

-9.6x = 38.4

x = -4

Answer:

Step-by-step explanation:

Simplifying

3.4 + 2(9.7 + -4.8x) = 61.2

3.4 + (9.7 * 2 + -4.8x * 2) = 61.2

3.4 + (19.4 + -9.6x) = 61.2

Combine like terms: 3.4 + 19.4 = 22.8

22.8 + -9.6x = 61.2

Solving

22.8 + -9.6x = 61.2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-22.8' to each side of the equation.

22.8 + -22.8 + -9.6x = 61.2 + -22.8

Combine like terms: 22.8 + -22.8 = 0.0

0.0 + -9.6x = 61.2 + -22.8

-9.6x = 61.2 + -22.8

Combine like terms: 61.2 + -22.8 = 38.4

-9.6x = 38.4

Divide each side by '-9.6'.

x = -4

Simplifying

x = -4

Does anyone know this?

Answers

Answer:

120 degrees

Step-by-step explanation:

180 - 60 = 120

Answer:

60

Step-by-step explanation:

all sides are equal to each other:)

On a piece of paper, use a protractor and a ruler to construct △ABC with AB=4 in. , AC=4 in. , and m∠A=60° . Which statement is true about this triangle? BC=3 in.
BC=4 in.
BC=5 in.
The length of BC cannot be measured.

Answers

bc is 3 you can solve it with using sin

4sin60=x over 4

Answer:

BC=5

Step-by-step explanation:

Find the value of:27x^(3)+8 y^(3) if 3x+2y = 20 and xy = (14)/(9)

Answers

27x^3+8y^3=(3x)^3+(2y)^3=(3x+2y)[(3x)^2-3x\cdot2y+(2y)^2]\n\n=(3x+2y)[(3x)^2+2\cdot3x\cdot2y+(2y)^2-3\cdot3x\cdot2y]\n\n=(3x+2y)[(3x+2y)^2-18xy]=(*)\n---------------------------\n3x+2y=20\n\nxy=(14)/(9)\n------------------------------\n(*)=20\cdot(20^2-19\cdot(14)/(9))=20\cdot(400-18\cdot(14)/(9))=20\cdot(400-2\cdot14)\n\n=20\cdot(400-28)=20\cdot372=7440



a^3+b^3=(a+b)(a^2-ab+b^2)\n\n(a+b)^2=a^2+2ab+b^2

Ronald paid $162 for 6 tickets to a basketball game during the game he noticed that his friend paid 130 for 5 tickets the price of each ticket was $26 was Ronald overcharge explain

Answers

As for this problem, we take into consideration that it was stated that each ticket costs $26. So if Ronald bought 6 tickets, the cost for all the tickets should have been just $132. His friend bought 5 tickets which was only at $80. Both him and his friend were overcharged. Ronald was overcharged by $30 and his friend was overcharged by $40. They generally paid another ticket with a little more to top on that. This is also an important lesson that since you know the price, you can calculate it itself to avoid being overcharged.
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