MATHEMATICS MIDDLE SCHOOL

Ishmail wants to build a long train track. If each piece if track is 6 inches long and he has 42 pieces can he make a track that is 20 feet long

Answers

Answer 1
Answer: 6 x 42 = 252 inches 

252 inches = 21 feet

Yes, he can.
Answer 2
Answer:

Answer:

Yes

Explanation:

Each piece is 6 inches, and if you do 6*42, it is 252. 252/12 because to change it into feet is 21. 21 is greater than 20.

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Write an algebraic expression with the variable x that has a value of 3 when evaluated

Answers

x=23

(x+5) - 25 = 3?

If this is what you mean.

What is the product of 9 and the quantity is 5 more than a number t is less then 6

Answers

The quantity 5 more than a number t is labeled as (5+t) 
Product of 9 and the quantity is labeled as = 9(5+t) which equals 45+9t
Result is less than 6 so the equation becomes
45+9t < 6 

Music lessons cast $20 per week How much do 6 weeks of lesson cost

Answers

20\$\ for\ 1\ week\nx\ for\ 6\ weeks\n\nproportion:\n20-1\nx-6\n\ncross\ multiplication\n\n20*6=x\n\n120=x\n\n6\ weeks\ of \ lessons\ cost\ 120\$.
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Which value of a solves the equation

a^-2 = 1/100

Answers

Answer:

a = 10 or a = -10

Step-by-step explanation:

a^-2 = 1/100

We know 100 = 10^2

a^-2 = 1/10^2

We know 1/b^c = b^-c

1/a^2 = 1/ 10^2

Multiply by a^2 on each side

a^2 *1/a^2 = 1/ 10^2 *a^2

1 = a^2/10^2

Multiply by 10^2 on each side

1 0^2= a^2/10^2 * 10^2

10^2 = a^2

Take the square root of each side

sqrt(10^2) = sqrt(a^2)

±10 =a

To win a basketball game, one team scored 113 points. They made a total of 41 two pointers and three pointers how many of the baskets were worth 2 points and how many were 3 pointers

Answers

So there are 41 two pointers and three pointers.  
there are 21 two pointers and 20 three pointers

Parallelogram JKLM has coordinates J (−8, 16), K (8, 16), L (16, −8), and M (0, −8). Parallelogram JꞌKꞌLꞌMꞌ has coordinates Jꞌ (−1, 2), Kꞌ (1, 2), Lꞌ (2, −1), and Mꞌ (0, −1). Parallelogram JꞌꞌKꞌꞌLꞌꞌMꞌꞌ has coordinates Jꞌꞌ (3, 2), Kꞌꞌ (5, 2), Lꞌꞌ (6, −1), and Mꞌꞌ (4, −1).Which transformations describe why parallelograms JKLM and JꞌꞌKꞌꞌLꞌꞌMꞌꞌ are similar?



A.
Parallelogram JKLM was reflected across the y-axis and then dilated by a scale factor of .

B.
Parallelogram JKLM was dilated by a scale factor of and then translated 1 unit right and 2 units down.

C.
Parallelogram JKLM was rotated 270° clockwise and then dilated by a scale factor of .

D.
Parallelogram JKLM was dilated by a scale factor of and then translated 4 units to the right.

Answers

Your answer is D) Parallelogram JKLM ​ was dilated by a scale factor of  1/8  and then translated 4 units to the right.

Answer: The correct answer is C.

Step-by-step explanation:
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