MATHEMATICS MIDDLE SCHOOL

Solve for x - Pre algebra

Answers

Answer 1

Answer:

The sum of the measures of the interior angles of a triangle is 180 degrees.

Make the three angles add up to 180 in an equation.

6x + 130 + 4x = 180

Combine like terms.

10x + 130 = 180

Subtract 130 from both sides.

10x = 50

Divide both sides by 10.

x = 5 is your answer.

Answer 2

Answer: In this case you would set it up as
$6x + 4x + 130 = 180$
(180 represents the degree of the triangle)

Add up like terms
$10x + 130 = 180$
Subtract 130 to the other side (180-130)

$10x = 50$
Divide 10 to the other side ( 50/10)
.
$x = 5$
Hope this was clear :)

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Answers

Answer:

Step-by-step explanation: true

is the area of a paperback book cover closer to 28 sqaure inches or 28 sqaure centimeters? tell how you decided

Answers

I would say 28 square inches. Imagine that we divide the number and we get 4 and seven. your average paperback book is about 4 inches wide and 7 inches tall. If we multiply it back, we get 28 square inches.
Hope it helps!
-Lacy

It would be centimeters becuase square inches is a very large area, much larger than a typical book. Therefore, the paperback book would most likely be 28 square centimeters

$64 jacket; 20% discount

Answers

20 will goes into 100, 5 times so the discount will be 1/5 off. 64 divided by 5 is 12.8 and than 64 minus 12.8 is 51.2, so the discount price is $51.20.

I hoped I help :P

Estimate the sum for 1,537 times 242 then find the sum

Answers

Answer: Two values are 369600 and 300000.

Step-by-step explanation:

If we rounding the integers to nearest ones ,

$1537 \text{change into }1540\n\n242\text{ change into }240\n\nSo,\n\text{Sum will be }\n=1540* 240\n=369600$

If we rounding the integers to nearest tens,

$1537\text{ changes to }1500\n242\text{ changes to }200\nSo,\n\text{Sum will be }\n=1500* 200\n=300000$

Hence, by estimation, we get

Two values from above two cases are 369600 and 300000.

Final answer:

The estimated product of 1,537 and 242 is 300,000. The exact product is 372,094.

Explanation:

The question is asking to first estimate and then find the exact product of 1,537 and 242. To estimate, we could round 1,537 to 1,500 and 242 to 200 and then multiply those round numbers. This gives us an estimate of 300,000.

For the exact calculation, we have to multiply 1,537 by 242 which equals 372,094. So, the exact product of 1,537 and 242 is 372,094.