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malfutka [58]
2 years ago
5

23 - (2 + 4) - 15 ÷ 3

Mathematics
2 answers:
liubo4ka [24]2 years ago
6 0

Answer:

12

Step-by-step explanation:

23 - (2 + 4) - 15/3

23 - (6) - 5

23 - 6 - 5

12

sergey [27]2 years ago
6 0

Answer:

12

Step-by-step explanation:

Use Order of Operations, or PEMDAS to find the order at which to solve this problem:

P - Parenthesis

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Step 1: Solve inside the parenthesis

23-(6)-15÷3

Step 2: Complete the division

23-(6)-5

Step 3: Solve the subtraction

<u>12</u>

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Lim wrote several pairs of values that he thought were equivalent. Which of his equations is correct?
Annette [7]

Answer:

I believe the correct answer would be A: 3/5 = 60

Step-by-step explanation:

Firstly, the second option is wrong because 0.06 would be 6 hundredths, so that is wrong, the third option would be incorrect because 0.002 would equal 2 thousandths so that is also wrong, and the fourth option would be 25% instead of 75%, so your answer should be A.

7 0
2 years ago
Find the least common denominator for these two rational expressions 7/n^2 -8/7n
lianna [129]

Answer:

7n²

Step-by-step explanation:

7/n² - 8/7n

Least common multiple will be the least common denominator

L.C.M = 7n²

Dividing the L.C.M by denominators and multiplying with numerators;

((7×7) - (n×8))/7n²

= (49 - 8n)/7n²

7n² is the least common denominator

8 0
3 years ago
Find the answer to this 4x1/3x4+1
JulsSmile [24]

Answer: 3.25

Step-by-step explanation:

4x1=4 and 4x3+1=13 so then 13 divided by 4= 3.35

8 0
3 years ago
Read 2 more answers
Which values of a and b make the following equation true? a = 11, b = 7 a = 11, b = 10 a = 28, b = 7 a = 28, b = 10
xz_007 [3.2K]

Answer:

The answer is

<h2>a = 11, b = 7</h2>

Step-by-step explanation:

( {5x}^{7}  {y}^{2} )( { - 4x}^{4}  {y}^{5} ) =  - 20 {x}^{a}  {y}^{b}

Multiply the terms on the left side of the equation

That's

- 20 {x}^{11}  {y}^{7}  =  - 20 {x}^{a}  {y}^{b}

Since the bases are the same we can equate the exponents

That's

{x}^{11}  =  {x}^{a}

a = 11

And

{y}^{7}  =  {y}^{b}

b = 11

Therefore

a = 11 and b = 7

Hope this helps you

7 0
3 years ago
Which relationship describes angles 1 and 2?
pav-90 [236]
Angles 1 and 2 are supplementary angels because they form a line.
Angles 1 and 2 are adjacent angles because they share an interior ray and they have a common vertex.
7 0
3 years ago
Read 2 more answers
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