MATHEMATICS MIDDLE SCHOOL

Simplify this expression. Explain step-by-step the process.

-12÷3•(-8+(-4)²–6)+2

Answers

Answer 1
Answer: well so you have to go with pemdas. p parenthesis, e exponets,m multipication, d division, a add, s subtract. let start with the parenthesis which is 8 plus negative four to the secondpower minus 6. so negative 4 to the second power is equal to positive sixteen because negative time negative is equal to positive. so 8 plus sixteen is 24-6 is 18. negative 12 divided by 3 is negative 4.so negative 4 time 18 is negative 72 plus 2 is negative 70.the answer is negative 70
Answer 2
Answer: Using PEMDAS to answer this, the steps are:
Parenthesis first, so (-8+(-4)^2-6)= 2 
You now have -12/3 (2)+2 
Next is multiplication, so 3(2)= 6
Now you have -12/6 +2
Next is division, so -12/6= -2
Now you have -2+2
Add them together to get the answer of 0
Hope this helped!

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it is estimated that an iceberg weighs 84000 tonnes. As the iceberg moves into the warmer water, it's weight decreased by 25% each day. What will the iceberg weigh after 3 days in the warmer water? Give your answer to 3 significant figures.

Answers

The iceberg will weigh 35000 tonnes correct to 2 significant figures.

What is Depreciation?

Depreciation refers to when the value of something goes down over time. The value of a car usually decreases in value with time. Therefore, its value is said to depreciate.

Given that, it is estimated that an iceberg weighs 84000 tonnes. As the iceberg moves into the warmer water, its weight decreased by 25% each day.

Depreciates by 25%, so 100% - 25% = 75%

75% of, 84000 for 3 days:

= (75 / 100)³ × 84000

= (0.75)³ × 84000

= 35437.5

Therefore, the iceberg will weigh 35000 tonnes correct to 2 significant figures.

For more references on Depreciation, click;

brainly.com/question/15085226

#SPJ2
the iceberg will weigh 35437.5 tonnes after 3 days 

How many months have 28 days

Answers

Actually all of the 12 months have 28 days in them. But the only month that just has 28 days is February.

Hope I helped!

- Amber
Just February...but each four years this month has 29 days.

Movie tickets cost $7 for students and $9 for adults. A group of 8 people spent $66 on movie tickets. How many adult tickets were bought?

Answers

It would be 5 adults.

Kenny's weight is 6/7 times melvin's weight. what is the ratio of melvin's weight to the total weight of the two boys?

Answers

Answer:

(7)/(13)

Step-by-step explanation:

Let

x------> Melvin's weight

y------> Kenny's weight

we know that

y=(6)/(7)x

x+y=x+(6)/(7)x=(13)/(7)x -----> total weight of the two boys

Find the ratio of Melvin's weight to the total weight of the two boys

ratio=(x)/(((13)/(7)x)) =(7)/(13)
Answer=7:13

Kenny's Weight*6/7=Melvin's Weight

So, for example, if Melvin's weigh was 7...

Kenny's Weight*6/7=7
divide both sides by 6/7
Kenny Weight=6

So we can say that Melvin's weight to Kenny's weight is 7:6

The boys total weights would be...
7+6=13


So Melvin's weight over the total weight of the two boys is:

7:13

125 thousands=1 tenth___________thousandths

Answers

Probably 25 thousands because 125 thousands equals 1 tenth and 25 thousands I think.

Answer:

0.125

Step-by-step explanation:

Tiya has 7/9 of an apple pie. How many pieces, each 1/3 of a pie, can she get from that pie?

Answers

Would it be 3? 1/3*3= 6/9 and that’s the highest amount she can get from it. i think
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