Tutors Answer Your Questions about Signednumbers (FREE)
Question 994684: Use the rule for order of operations to simplify the expression as much as possible
2+3/(1)+4(5)=
Answer by stanbon(69061) (Show Source):
You can put this solution on YOUR website! Use the rule for order of operations to simplify the expression as much as possible
2+3/(1)+4(5)=

Rule of Order:: PEMDAS

no P
no E
M gives
2+3/120
D gives
2320
A gives
25

Cheers,
Stan H.

Question 992897: ( ) + ( ) + ( ) =30, using these numbers find the numbers needed to give the sum
1,3,5,7,9,11,13,15 repetitions are allowed
Answer by macston(4006) (Show Source):
Question 992470: One tractor can plow a field in 8 hours, and another in 10 hours. In how many hours can both tractors plow the field together ?
Answer by jim_thompson5910(33401) (Show Source):
You can put this solution on YOUR website! 1/x + 1/y = 1/z
1/8 + 1/10 = 1/z
5/40 + 4/40 = 1/z
9/40 = 1/z
9*z = 40*1
9z = 40
9z/9 = 40/9
z = 40/9 = 4.444 (approximate)
It will take approximately 4.444 hours to plow the field together.
Question 991308: how to write √52 to 2√17
Answer by Fombitz(25151) (Show Source):
Question 988527: Perform the operation. Give the answer in a + bi form.
3/4i
Answer by Fombitz(25151) (Show Source):
Question 988194: I'm asked to write an algebraic equation for this sentence: 14 less than 3 times a number is 5 more than half of the number. I was thinking maybe 3n14+5, but it doesn't look correct. Thanks for your help~
Found 2 solutions by ikleyn, solver91311: Answer by ikleyn(988) (Show Source): Answer by solver91311(20879) (Show Source):
You can put this solution on YOUR website!
You left out a representation of the word "is" in your sentence. "is" means equals, as in "=".
Everything on the left side of the word "is" in your sentence needs to be represented in the lefthand side of your equation. Everything on the right side of the word "is" needs to be represented in the righthand side of your equation. Notice that the word "number" representing something unknown is repeated on both sides of the word "is" in your sentence. What do you think that means?
Give this another try and write back with your results. I'll help you some more if you need it then.
John
My calculator said it, I believe it, that settles it
Question 986817: when x=2 what is 2x²+3x1
Answer by Cromlix(3061) (Show Source):
Question 986885: 8(5x)=
Answer by ikleyn(988) (Show Source):
Question 986818: when x=2 what is 2x²+3x1
Answer by jim_thompson5910(33401) (Show Source):
Question 986636: Could you please help me with these 2 problem?
They are operations on fractons.
I have tried this a few timess but keep getting it wrong. My answer was
1/2 but wrong, help please?
5/9 divided by (9/10)= ?
Next question is
10/9 divided by (9/10)=?
my answer was 1, but I got it wrong, help?
Found 2 solutions by macston, stanbon: Answer by macston(4006) (Show Source): Answer by stanbon(69061) (Show Source):
You can put this solution on YOUR website! 5/9 divided by (9/10)= ?
(5/9) / (9/10)

= (5/9) * (10/9)

= 50/81

Next question is
10/9 divided by (9/10)=?

(10/9) / (9/10)

= (10/9)*(10/9)

= 100/81

Cheers,
Stan H.

Question 985557: Set notation for y=3x11
Answer by stanbon(69061) (Show Source):
Question 980170: Insert operations and grouping symbols to make the following equations true:
3 3 3 3 3=1
3 3 3 3 3=9
I always get 3 when I try to answer this problem.
3×3÷3+33=3; ((3×3)+(33))÷3=3; and many more that I've tried.
Answer by onlinepsa(22) (Show Source):
Question 874701: (X^22X3)(x3)
Answer by kekegeter (94) (Show Source):
Question 892495: (15)+8
Answer by kekegeter (94) (Show Source):
Question 956315: (8x + 4y)(2x  11y)
Answer by kekegeter (94) (Show Source):
Question 976406: Please do help me as soon as possible. Because I really need it. Sorry for rushing you.
Simplify the following by removing the grouping symbols:
a. [4(5)]16
b. 18[4(8)]
c. {4x(3y16x)}
d. {16x(123x)}
e. {4[10(6)]}[8(18)]
f. {9[12(7)]}[15(2)]
Answer by Alan3354(47455) (Show Source):
You can put this solution on YOUR website! Simplify the following by removing the grouping symbols:
a. [4(5)]16
b. 18[4(8)]
c. {4x(3y16x)}
d. {16x(123x)}
e. {4[10(6)]}[8(18)]
f. {9[12(7)]}[15(2)]

f. {9[12(7)]}[15(2)]
= {9[12+7]}[15+2]
= {9[5]}[13]
= {9[5]} + 13
= {9+5]} + 13
= {4} + 13
= 4 + 13
= 17

You try the others, email via the TY note to check your work.
Question 975142:
Answer by Alan3354(47455) (Show Source):
Question 974098: Order of operations is the math type of algebra I'm doing please could you help me understand why I can't get the right answer. I keep getting 6.5 and every were I've looks tell me it's 44 but doesn't explain please help me the math equation is 8×5÷10+5035×(31)^(2)
Answer by Alan3354(47455) (Show Source):
You can put this solution on YOUR website! 8×5÷10+5035×(31)^(2)

= 8×5÷10+5035×4
= 40/10 + 20140
= 20144
==================
You need to add some parentheses to eliminate ambiguities.
They're free.

Also, use * (Shift 8) for multiply, not x.
Question 970224: Please help me simplify this problem and explain the steps. 6(1/2)(3/4)(1/3)+(5)(1)
Answer by Fombitz(25151) (Show Source):
Question 968336: Perform the indicated operations and if possible, simply
60/75 – 4/5 =
Answer by MathLover1(11324) (Show Source):
Question 961476: what is the answer? plz 92x < 4x
Answer by Horlaye(23) (Show Source):
You can put this solution on YOUR website! 9  2x < 4x
Collect like terms
2x  4x < 9
6x < 9
Divide both sides by the coefficient of x
6x/6 > 9/6
x > 3/2
Note: when dividing with a negative coefficient I.e (6) the inequality sign change
Question 965426: Hi, how can u turn 7 more than x into algebraic expression? 7+x,or 7x
Answer by t0hierry(104) (Show Source):
Question 957878: What is 0.5% off of 315?
How do I do this on excel?
Answer by Fombitz(25151) (Show Source):
Question 950400: (12)(7)(6)(19)
Found 2 solutions by macston, MathLover1: Answer by macston(4006) (Show Source): Answer by MathLover1(11324) (Show Source):
Question 947549: hey I was wondering why 6*2 equals negative 12 not twelve isn't 6 times 2=12?
Answer by josgarithmetic(13975) (Show Source):
Question 946105: find the value of n.then check by adding  (5/8+1/8)+3/8=5/8+(1/8+n) n=
Answer by MathLover1(11324) (Show Source):
Question 945583: A book has 500 pages numbered 1, 2, 3… and so on. How many times does the digit 1 appear in the page numbers?
Answer by KMST(3791) (Show Source):
You can put this solution on YOUR website! The digit 1 sometimes appears more than once on the same page number,
so it appears a lot.
It appears at times as the first digit in pages 100 to 199.
It appears as the last digit times
(on page 1, and in other page numbers preceded by 1, 2, 3, ... 49).
It appears as the tens digit in 2digit numbers (10, 11, ...19),
and also appears as the tens digit in many 3digit page numbers,
times preceded by each of the digits 1, 2, 3,and 4.
So, the total count is
appearances of the digit 1.
NOTE:
That does not mean that there are 200 page numbers where the number 1 appears.
That would be a different question.
In that case, I would rename the page numbers as the 3digit numbers
001, 002, 003, .... 498, 499, 000.
(I am using 001 for 1, 002 for 2, and so on up to 099 for 99, and I use 000 for 500).
Those are 500 3digit ordered arrangements,
with 5 choices for the first digit,
and 10 choices for each of the other two digits.
There is a total of such arrangements.
How many contain the digit 1 at least once?
How many do not contain y=the digit 1 at all?
If we wanted to exclude the digit 1,
we could only use of the arrangements.
so pages contain the digit 1 at least once.
Question 943757: Adding rational expressions with different denominators: ax, bx
How do I get this into a single fraction in simplest form?
3+(8x+8y)/3x(6x+8y)/9x
I can get it to this;
18x2 + 16xy + 27
————————————————
9
But then I am lost on how t get it further simplified.
Answer by MathLover1(11324) (Show Source):
Question 943643: 4x>2x+16
Answer by MathLover1(11324) (Show Source):
Question 943644: 3(3f4)>5f9
Answer by MathLover1(11324) (Show Source):
Question 943640: What is the domain for this rational expression? (m^2+2m24)/(m^23m)
Found 2 solutions by MathLover1, josgarithmetic: Answer by MathLover1(11324) (Show Source): Answer by josgarithmetic(13975) (Show Source):
Question 939531: How do you evaluate teh expression 4 3/2
Answer by stanbon(69061) (Show Source):
You can put this solution on YOUR website! How do you evaluate teh expression 4 3/2

Convert 4 to halfs to get:
(8/2)(3/2)

Ans: 5/2

Cheers,
Stan H.

Question 937190: Pls help me out in solving with an explanation:
Answer by oscargut(2071) (Show Source):
Question 934020: Algebra Find the unknown digit to make each statement ture
2.48 > 2.4n1 > 2.463 What goes in digit n and how do we determine this?
5.723 < 5.72n < 5.725
7.64 < 7.n5 < 7.68
Answer by Techpriest(29) (Show Source):
You can put this solution on YOUR website!
By using trial and error. By looking at the hundredth digit, we know that the first number of the hundred digit is 8 and the hundredth digit of the third number is 6. We have to find a value less than 8, but greater than 6. Therefore, we can assume that n is 7. Now, we plug in our values.
Plugging in our values, this statement is true and n can be 7.
By also using trial and error, we look this time the thousandth digit, we know that the first number of the digit is 3 and the third number of the digit is 5. We need to find a value greater than 3, but less than 5. A value that is greater than 3, but less than 5 would be 4. Plugging in 4 would be...
Correct.
Using the same method, we look at the tenth digit now, we know that the first number of the tenth digit is 6 and the third number of the digit is also 6. Since the first and third number of the tenth digit are the same, we look to the hundredth digit that the first number is 4 and the third number is 8. Relevant to the solution, the second number of the hundredth digit is 5. We want to find a value for n that makes the second number greater than 7.64, but less than 7.68. Through trial and error as usual, we discover that n must equal 6.
Plugging in the value of n. This statement now appears to be true.
Question 933782: 15 + 3 x 4  12 /6
Do I go left to right, or do I do the multiplication first?
Answer by josgarithmetic(13975) (Show Source):
Question 931823: solve algebraically
4x^2+y^2=64
x^2+y^2=52
Answer by Alan3354(47455) (Show Source):
Question 927062: My equation is 20/5(3)^2 The answer I got using the order of operation is 5 but the algebra calculator says 13. This answer requires me to divide before doing exponent. Why would I not use order of operation?
Answer by jim_thompson5910(33401) (Show Source):
You can put this solution on YOUR website! 20/5(3)^2 has the calculator thinking you mean
but what you really want is
so you need to enclose the denominator 5(3)^2 in parenthesis like this:
20/(5(3)^2)
Question 926054: what is the greatest natural number of two dight and three dight
Answer by MathLover1(11324) (Show Source):
Question 925959: Graph f(x) = 3 + 1. Then reflect the graph of f(x) across the yaxis. Write a function. g(x) to describe the new graph. (you don't have to graph it, I don't understand what to graph)
Found 2 solutions by MathTherapy, josgarithmetic: Answer by MathTherapy(4047) (Show Source):
You can put this solution on YOUR website!
Graph f(x) = 3 + 1. Then reflect the graph of f(x) across the yaxis. Write a function. g(x) to describe the new graph. (you don't have to graph it, I don't understand what to graph)
Your equation appears to be wrong!! Do you check your work before submitting it?
Answer by josgarithmetic(13975) (Show Source):
Question 920505:
Answer by Jazib720(1) (Show Source):

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395
