MATHEMATICS MIDDLE SCHOOL

Each journal weighs about 280 grams what is the total weight of three journals

Answers

Answer 1
Answer:

If each journal weighs about 280 grams what will be  the total weight of three journals is: 840 grams

Using this formula

Total weight=Number of journal × Weight of each journal

Where:

Number of journal=3

Weight of each journal=280 grams

Let plug in the formula

Total weight=3×280 grams

Total weight=840 grams

Inconclusion if each journal weighs about 280 grams what will be  the total weight of three journals is: 840 grams

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Answer 2
Answer: Well, to start this off- you have three journals. Each one weighs 380 grams. To solve this you have to multiply the weight of each journal with the amount of journals you have. And your answer should be 840

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Draw lines to show much each person gets. write the answer. 4 friends share 3 Orange equally
Determine whether the sequence is arithmetic, geometric, both, neither. 16,8,4,2,... is what
the 6:00 am temperatures for four consecutive days in the town of lincoln were -12.1 celcius, -7.8 celcius, -14.3 celcius, and -7.2 celcius. what was the average 6.00 am temperature for the four days?
there are two options for purchasing tickets to baseball games single game tickets cost $8 per game season tickets cost 195$ Plus 1.50$ per game let g represent the number of baseball games let c represent the cost. the number of games is the two options cost os 30 . if your planning to attend 18 games this season would you rather buy single game tickets or season tickets

Is 3/8bigger than 4/10

Answers

the way to work this out is to find a common denominator. so in this case 80 is a common denominator. So it would be 3/8 into 30/80 and then 4/10 into 32/80 therefore 4/10 is bigger

Please help!! Thanks

Answers

X=3

X/-3 = -1 ,Leave X by itself so multiply by -3 on both sides.

X = -1*-3

X = 3, negative times negative equals positive.

X = 3, negative times negative equals positive.


hope this helps

How do i find 1/3 of 12

Answers

"of" means to multiply
1/3 times 12 = 4

If 2b= -3, what is the value of 1 – 4b?

Answers

If we have the expression 2b = -3, then the value of the expression 1 - 4b is 4.

Step 1: Solving for 'b'

We are given the equation 2b = -3. To isolate 'b,' we need to get rid of the coefficient 2 attached to 'b'. To do that, we'll divide both sides of the equation by 2:

2b / 2 = -3 / 2

b = -3/2

Step 2: Substitute 'b' in the expression 1 - 4b

Now that we have the value of 'b' as -3/2, we can substitute it into the expression 1 - 4b:

1 - 4(-3/2)

Step 3: Simplify the expression

To simplify the expression, we'll perform the multiplication first:

1 + 6/2

Next, we add 1 and 6/2:

1 + 3 = 4

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Answer:

Step-by-step explanation:

2b= -3, what is the value of 1 – 4b?

2b= -3

b = -3/2

Then 1 - 4b

= 1- 4(-3/2)

= 1+12/2

= 1+ 6

= 7

Tom,Scott and dawn sold cookies at the school fair.Tom had 90 cookies and sold 60% of them.
Scott had 150 cookies and sold 2/3 of them.
Dawn sold 46 cookies.
What percentage of the cookies sold were sold by Dawn?

Answers

first of all work out how many tom and scott sold.
tom sold 60% of 90 cookies which is 54.
scott sold 2/3 of 150 cookies which is 100.
altogether the three of them sold 54+100+46 cookies which is 200.
Dawn sold 46 of these 200 cookies. To work out the percentage we have both the numbers to get 23 out of 100. We halved those numbers because a percentage is out of 100 we halved it to get it out of 100.
so 23 out of 100 is 23% so dawn sold 23%of the cookies.

Hope this helps :)

after five tests, Mike's average score is 91. After 6 tests, his average score was 89. what was his score, on the sixth test?

Answers

( x 1 + x 2 + x 3 + x 4 + x 5 ) / 5 = 89 Multiply both sides by 5 

x 1 + x 2 + x 3 + x 4 + x 5 = 89 * 5 = 445 


( x 1 + x 2 + x 3 + x 4 + x 5 + x 6 ) / 6 = 90 

( 445 + x 6 ) / 6 = 90 Multiply both sides by 6 

445 + x 6 = 6 * 90 = 540 

x 6 = 540 - 445 = 95

Final answer:

Mike's score on the sixth test can be found by subtracting the total score after five tests from the total score after six tests (534 - 455), which yields a score of 79.

Explanation:

In order to solve this problem, we need to understand how averages work. The total score after five tests is 91*5, which amounts to 455. After the sixth test, the total average dropped to 89. To find the total score after six tests, you multiply 89*6, which gives us 534. The score for the sixth test can be found by subtracting the total score after five tests from the total score after six tests. So, 534 - 455 = 79. Therefore, Mike scored 79 on his sixth test.

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