MATHEMATICS MIDDLE SCHOOL

Evaluate.2 – 4 • 3 + 6 • 3



A.
12


B.
0


C.


–28


D.
8

Answers

Answer 1
Answer: 2 - 12 + 18
= -10 + 18
= 8
The answer is D.

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How do i make 24 using the numbers 11 6 10 2?

Answers

11+10+6-2+24

Eleven plus ten plus six minus two
11+6+10-2=24 simple math not too difficult

Jamina drove for 2 hours at an average speed of 40km/h. She then drove for 3 hours at an average speed of 50km/h. What was her average speed for the whole journey?

Answers

Remark

Average Speed = Total distance divided by total time.

Total Time

2 hours + 3 hours = 5 hours.  The total time is 5 hours.

Total Distance

d = rate  * time

d1 = 40 km/hour * 2 hours = 80 km

d2 = 50 km/hour * 3 hours = 150 km

d = d1 + d2

d = 80 + 150 = 230 km

Average Speed

Av = Total distance / Total Time = 230 / 5 = 46 km/hr

Which expression is equal to 7/8

Answers

7/8 .. *2 = 15/16

7/8 ...* 5 = 35/40


7/8 ...* 10 = 70/80


You can multiply the numerator and denominator by any number ( must be the same number), to result in an equivalent expression

What two facts can you double to find 8x4?

Answers

4 is equal to 2*2 (double the 2 is 4)

We can get the value of 8*4 on two steps:
1- we multiply the 8 by 2
2- we add the result of the multiplication to itself

This is illustrated as follows:
8*2 = 16
16+16 = 32

$1,500 computer; 7% tax

Answers

Tax sucks, trust me. Since we use tax often in our lives, it's quite easy nowadays.

Switch the 7% tax to a number that can be used in a calculation. 
Always divide the percent (7%) by 100%. 
7% divided by 100% = 0.07

Now, you need to find out the total cost. 
Always multiply 0.07 by 1500. 
0.07 × 1500 = 105.

Now that we know that you have to pay an extra $105 tax, we can add it with the original price. 
$1500 + 105 = 1605.

Your total price for the computer will be: $1605.
You would have to find 7% of $1,500. 
7% = 0.07
1,500 x 0.07 = 105
105 + 1,500 = 1,605
The computer cost (with tax added) $1,605.

48 is what percent of 300?And explain the answer for a 6th grader to understand.

Answers

16%. All you do is divide 48 by 300 which would give you 0.16. then to change a decimal to a percentage you move the decimal point to the right of the number twice. then just add the percentage sign
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