MATHEMATICS MIDDLE SCHOOL

Whats the value of this expression ?
30+[(6÷3)+(3+4)]

Answers

Answer 1
Answer: To do this do the work in the brackets first. There are two parentheses.  First solve 6/3.  This gives you two.  Now you add it to 7 (3+4) to get 9.  Now you want to add 30 by 9.  The answer is 39.
Answer 2
Answer: Solve the ones inside the parenthesis.
6÷3 = 2
4+3=7  add 7 and 2 which is 9
now since everything inside the brackets and parenthesis is solved add the 30 to 9
 30+9 = 39

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8 plus 7 equals 6 + blank

Answers

8 + 7 = 15, so 6 + 9 = 15

Evaluate the expression for x = –3. x^2+4x+3

Answers

Answer:

0

Step-by-step explanation:

Substitute x = - 3 into the expression

x² + 4x + 3

= (- 3)² + 4(- 3) + 3

= 9 - 12 + 3

= 0

What is the square root of 25/9?

Answers

The square root of 25/9 is 5/3
square root of 25 = 5
square root of 9 = 3
therefore the square root of 25/9 = 5/3

A gallon of milk costs $5.12. What is the price, in dollars, of an 8 ounce glass of milk? There are 128 ounces in 1 gallon.

Answers

Answer:

$.32

Step-by-step explanation:

To find the unit price, we take the cost and divide by the units.  We will take the cost and divide by 128 ounces since that is how many ounces in a gallon.

$5.12 / 128 ounces

$.04 per ounce

I need to find the price of an 8 ounce glass of milk, so I multiply by 8 ounces

$.04 per ounce * 8 ounces = $.32

My 8 ounce glass of mile costs $.32
The answer to your question is $.32

Estimate the product of 496 and 351

Answers

Take 496 and round it to 500
Take 351 and round it to 350 
Your answer should be around 850

What are the factors of 72 and 96?

Answers

The factors are what the number is divisible by.
72- 1,2,3,4,6,8,9,12,18,24,36,72
96- 1,2,3,4,6,8,12,16, 24, 32, 48, 96

The common factors are 1,2,3,4,6,8,12 and 24.
Hope this helps
so the factors are the numbers that make up the number so (exg factors of 6 are 2 and 3)
3*2 means 3 times 2

72=2*2*2*3*3
96=4*4*3*2*2*2

we can see that the common factor is (3*2*2*2 or 24)
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