2 years ago

It’s is integer fractions in 7th grade mathematics

Mathematics

1 answer:

Goryan [66]2 years ago

3 0

Can you post a picture of your question? I can help

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PLEASE HELP ME, I WILL GIVE BRAINLIEST (I WILL GIVE 50 POINTS)

DiKsa [7]

Answer:

Step-by-step explanation:

$B.\\\left(8\dfrac{4}{5}+3\dfrac{2}{10}\right)+\left(-1\dfrac{1}{5}\right)=8\dfrac{4}{5}+\left(3\dfrac{2}{10}+\left(-1\dfrac{1}{5}\right)\right)=8\dfrac{4}{5}+\left(3\dfrac{2}{10}-1\dfrac{1}{5}\right)$

$D.\\8\dfrac{4}{5}+3\dfrac{2}{10}-1\dfrac{1}{5}=8\dfrac{4}{5}+\left(3\dfrac{2}{10}-1\dfrac{1}{5}\right)$

$E.\\-\left(-8\dfrac{4}{5}\right)-\left(-3\dfrac{2}{10}\right)+\left(-1\dfrac{1}{5}\right)=8\dfrac{4}{5}+3\dfrac{2}{10}-1\dfrac{1}{5}=8\dfrac{4}{5}+\left(3\dfrac{2}{10}-1\dfrac{1}{5}\right)$

Used:

Associative property

$(a+b)+c=a+(b+c)=a+b+c$

and

$(-)(-)\to(+)\\(-)(+)\to(-)\\(+)(-)\to(-)$

6 0

2 years ago

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the ratio of high school students who were homeschooled to those who attended other schools was three to seven. if there were 90

lina2011 [118]

Answer:

210 high schoolers as ratio becomes 90:210

Step-by-step explanation:

we can see that 3:7 can be multiplied if 3 x 3 = 9 then 7 x 3 =21 we just add the zero and find a 90:210 ratio

6 0

3 years ago

I need help how,did you get the answer and explain

Anna11 [10]

2. 4(0) - 20(0) < 6
(5/2 (0)) >/= 5(0) - 10 ; it is a solution

3. 2.5 + 5(-1.5) > -10
2.5 - (-1.5) </= 4 ; it is also a solution

x y
( 0 , 0 )
(2.5, -1.5)

Plug it in, plug it in

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2 years ago

What is the solution to 3|–3x + 9| = –18?

Natasha_Volkova [10]

3|–3x + 9| = –18

divide both sides by 3

|–3x + 9| = –6

<span>absolute value cannot be a negative number</span>

<span>Answer: No solutions</span>

4 0

3 years ago

A birch tree that is 4 ft tall grows at a rate of 1 ft per year. A larch tree that is 6 ft tall grows at a rate of 0.5 ft per ye

GrogVix [38]

After 4 years 4+x=6+1/2x

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2 years ago

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