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2 years ago

Please help 50 points! 8th grade math question?!

Mathematics

2 answers:

Scrat [10]2 years ago

8 0

I think is 2.54 cm/lin

I think is C

Tanzania [10]2 years ago

6 0

Answer:

2. 1in/2.54cm

Step-by-step explanation:

Hope tHis will help Yuh!

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<img src="https://tex.z-dn.net/?f=3%2F5%20of%205%2F9%5C%5C" id="TexFormula1" title="3/5 of 5/9\\" alt="3/5 of 5/9\\" align="absm

pychu [463]

Answer:

⅓

<h2>Step-by-step explanation:</h2>

$\frac{5}{9} \times \frac{3}{5}$

$= \frac{1}{3} \times \frac{1}{1}$

$= \frac{1}{3}$

<h2>Checking:</h2>

$\frac{1}{3} \div \frac{3}{5}$

$= \frac{1}{3} \times \frac{5}{3}$

$= \frac{5}{9}$

#CarryOnLearning

8 0

2 years ago

Read 2 more answers

Which of these side lengths makes the triangle obtuse? 15, 36,

gogolik [260]

Answer:

I believe the answer is 36.

8 0

3 years ago

Rename 5/6 and 14/15 using the least common denominator.

Vedmedyk [2.9K]

Answer:

25/30 and 28/30

Step-by-step explanation:

1. To find the least common denominator, you need to find the least common multiple of the two denominators which are 6 and 15. Prime factorization of these numbers gives:

6 = 2 x 3

15 = 5 x 3

A number that would evenly divide both 6 and 15 must contain 2 x 3 x 5 which is 30.

Thus 30 is the least common denominator.

2. Now we need to somehow change both fractions to make them have a denominator of 30. To do this we can multiply by fractions with same numerator and denominator since that would be like multiplying by 1.

So, 5/6 x 5/5 = 25/30

And 14/15 x 2/2 = 28/30

8 0

3 years ago

The length (L) of a rectangle of fixed area varies inversely as the width (W).

Andreyy89

Answer:

6.25

Step-by-step explanation:

If 10ft=8ft

=5ft

cross multiply

5 0

2 years ago

Please take a look at the picture. Please write your answer with an explanation.

g100num [7]

Answer:

Step-by-step explanation:

<h3>Given question:</h3>

To simplify - 

$14 + 16 \div {2}^{3} - (12 + {3}^{2} ) \div 7 + 2 \times ( - 5)$

<h3>Solution:</h3>

According to PEMDAS rule,

[First parenthesis]

$= 14 + 16 \div {2}^{3} - (12 + 9 ) \div 7 + 2 \times ( - 5)$

$= 14 + 16 \div {2}^{3} - 21 \div 7 + 2 \times ( - 5)$

[Then exponents]

$= 14 + 16 \div 8 - 21 \div 7 + 2 \times ( - 5)$

[Then multiplication]

= 14 + 16 ÷ 8 - 21 ÷ 7 - 10

[Then division]

= 14 + 2 - 3 - 10

[Then addition]

= 16 - 13

[Then subtraction]

= 3 (Ans)

8 0

2 years ago