Number of results: 250,092
7th grade math - can't figure this out!
Ummmh, doesn't 10^5 mean 10 x 10 x 10 x 10 x 10 ?? So if we multiply by another 10 , how many 10's will we have now ?
Wednesday, October 3, 2012 at 8:11pm by Reiny
statistics
The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an “A” grade to the top 10% of the scores, a “B” grade to the...
Sunday, March 24, 2013 at 5:22pm by Sarah
5 grade math
3/10 + 5/10 = 8/10 can you do the rest? 1/2 of 10 is 5, so 5/10..... it comes to 8/10 then 8 4 - = - 10 5
Friday, February 3, 2012 at 6:53pm by 12-year-old-poet
3rd grade math
10 * 2 = 20 10 * 3 = 30 10 * 4 = 40 10 * 5 = 50 Do you see the pattern? What is 10 times 9?
Tuesday, December 14, 2010 at 8:44pm by Ms. Sue
Probability Math
A committee of four students will be selected from a list that contains six Grade 9 students and eight Grade 10 students. What is the expected number of Grade 10 students on the committee?
Tuesday, May 7, 2013 at 9:29pm by Lily
math 4th grade
7/9 4/10 Decomposing means breaking a number down. 5/9+2/9=7/9 2/10=2/10=4/10 These are examples
Wednesday, February 6, 2013 at 9:23pm by Steve
9th grade math
x^2-10=0 x^2=10 (add 10 to both sides) x= 3.16 (square root of 10)
Friday, April 3, 2009 at 12:53pm by sophie
math 4th grade
Here is how I would do this: 5 1/2 - 2 4/5 = 11/2 - 14/5 , (mixed numbers are useless in calculations) = 55/10 - 28/10 = 27/10 or 2 7/10 I have no idea how you can come up with 3 46/10 ??
Thursday, January 31, 2013 at 4:02pm by Reiny
Math 7th grade
12 - 5 3/10 11 10/10 - 5 3/10 Take it from there.
Sunday, October 17, 2010 at 9:08pm by Ms. Sue
english
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Friday, January 8, 2010 at 1:36pm by peter
7th grade math
Your question would be much easier to read if you'd used appropriate capitalization, spacing and punctuation. 30% = 0.3 = 3/10 1/5 = 2/10 2/10 + 3/10 = ____%
Saturday, October 3, 2009 at 12:21pm by Ms. Sue
5th grade math
Yes. 10/10 - 10/10 = 0
Sunday, November 14, 2010 at 10:29pm by Ms. Sue
Math
x=Regular Grade y=Premium Grade x(2.30)+y(2.55)=10,957 x=y+420 y+420(2.30)+y(2.55)=10,957 2.30y+966+2.55y=10,957 4.85y+966=10,957 4.85y=9991 y=2,060 Gallons of Premium Grade x=2,060+420 x=2,480 Gallons of Regular Grade Hope this helps :)
Wednesday, May 1, 2013 at 5:47pm by Theresa
5th grade math
5 2/5 - 3 4/5= 5 2/5 = 4 7/5 4 7/5 - 3 4/5 = 1 3/5 As you see, we need to change the first number. 6 1/10 = 5 11/10 10 = 9 5/5/
Thursday, March 3, 2011 at 9:37pm by Ms. Sue
8th grade math
3.5 *10 ________ 7 *10^-9 1*10^9*10 _________ 2 1*10^10 _______ 2 0.5*10^10=0.5*10,000,000,000=5,000,000,000
Sunday, May 1, 2011 at 11:57pm by Anonymous
4 grade math
A-B=8.5 A+B=10.333333 add the equations. 2A=18 8/10 A=9 4/10 now figure out B yourself
Tuesday, May 21, 2013 at 8:11pm by bobpursley
5 grade math
First convert 1/2 to a denominator (bottom number) of 10, making it 5/10. Now add. 3+5=8 8/10- answer
Friday, February 3, 2012 at 6:53pm by Talia
7th grade math check my answers please quick
11. 1.72*10^4 10,000 is 10^4 you only have to move the decimal point 4 places to the left to get a number less than 10. 21. correct
Friday, September 28, 2012 at 6:32pm by Steve
7th grade Math quick help Ms. Sue
2. 32 slices for 16 students, so each gets 2 slices which is 2/8 or 1/4 of a pizza 4. a 5. 2.4 x 10^10 8. 5.12 x 10–6 9. 31/5 = 62/10 = 6.2
Wednesday, October 3, 2012 at 7:37pm by Reiny
6th grade math
10 * 10 * 10 = 1,000
Tuesday, August 16, 2011 at 6:53pm by Ms. Sue
math 3rd grade
It simply means the answer will always be the same no matter what order you put the numbers in! 2+3+5=10 3+2+5=10 5+2+3=10
Tuesday, September 25, 2012 at 4:47pm by Bryce
3RD GRADE MATH
10 + ? = 20 + 110 10 - 10 + ? = 130 ? = 130 - 10 ? = 120
Tuesday, September 27, 2011 at 8:47pm by Ms. Sue
Grade 12 Math-Urgent!
d = 10 hours C = 10 000 bacteria N(t) = 10 000(2)^(t/10) is your equation
Wednesday, January 9, 2008 at 9:34pm by Anonymous
2nd Grade Math
I'm in 6th grade, the answer is, 10. :)
Wednesday, September 8, 2010 at 9:13pm by Jade
math
The first obvious comparison to me is that homework counts about 10% of the total points. Each of the four tests also count about 10%. Add those to the final, and the professor is counting over 50% of the grade on exams. Another quarter of the grade is the lab.
Thursday, July 5, 2012 at 8:35pm by Ms. Sue
6th grade Algebra
Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.
Wednesday, February 27, 2013 at 12:16pm by Deanne
8 grade math
The carat (^) is used online to indicate a power, so 10^2 = 10 squared. Anna's answers need to be modified as shown below. Decimal Notation Scientific Notation 5,000,000,000,000 = 5 × 10^12 12,000,000,000 = 1.2 × 10^10 430,000,000 = 4.3 × 10^8 0....
Wednesday, September 30, 2009 at 8:35pm by PsyDAG
math
but Ms. Sue im in grade 11 and in grade 10 in science I did frog disection
Sunday, January 6, 2013 at 2:07pm by Katelyn
4th Grade Math
In the set of all whole numbers from 20 to 29,what fraction have two integers which add up to 7? A.1/9 B.1/10 C.5/10 D.9/10
Monday, September 26, 2011 at 6:51pm by Kristiana
7th Grade Math Ms. Sue!
4. Which expression would you use to figure out the number of ways you can arrange the letters in the word equation? (1 point) 8! 8P4 4P8 4! 5. Five friends are having their picture taken. How many ways can the photographer arrange the friends in a row? (1 point) 150 100 120 ...
Wednesday, April 17, 2013 at 10:12pm by Gabby
Math
A coffee dealer mixed 12 pounds of one grade coffee with 10 pounds of another grade of coffee to obtain a blend worth $54. He then made a second blend worth $61 by mixing 8 pounds of the first grade with 15 pounds of the second grade. Find the price per pound of each grade.
Sunday, October 21, 2012 at 12:23pm by Jamese
Math, 7th grade
2*10^3+3*10^2+6*10 + 7
Thursday, October 1, 2009 at 9:54pm by bobpursley
11th grade
The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?
Friday, November 6, 2009 at 12:30pm by stefanie coplin
math
Grade weight weighted-grade 65 16% 10.4 70 21% 14.7 61 21% 12.8 76 42% 31.9 The weighted score is the sum of the weighted grade (third column).
Sunday, June 3, 2012 at 1:39pm by MathMate
math 8th grade
10(square root400 - 15) 10(20-15) 10(5)= 50 would this be correct?
Tuesday, October 2, 2012 at 9:45pm by jill
4th Grade Math
of the set of whole numbers from 0 to 9, what fraction are odd numbers? A.1/9 B.1/10 C.5/10 D.9/10
Monday, September 26, 2011 at 6:54pm by Kristiana
mathematics (percentages)
math problem: pedro wants to calculate his gpa. he has the lab grades:90/100,98/100,90/100,94/100,90/100,90/100,95/100,98/100. Labs are worth 20%. He has the test grades: 9/10,6/10,10/10,10/10,5/10,7/10,7/10,7/10,10/10,10/10,8/10,10/10. Homework is worth 20% test grades are: ...
Tuesday, December 5, 2006 at 5:27pm by day
5th Grade Math
seventeen and four tenths = 17.4 = $17.40 ten and ninety-nine thousandths = 10.099 = $10.10
Thursday, October 6, 2011 at 8:57pm by Ms. Sue
7th grade
I'm in 7th grade too but I studied this last year so: 5x-10=2x-7 -2x -2x 3x-10= -7 +10 +10 (because -10 and -7 are -) 3x = 3 Then divide out x=1
Friday, October 1, 2010 at 10:39pm by Bridgett
5th grade math
5=(5*5)/5=25/5 3=(3*5)/5=15/5 5 2/5=(25/5)+(2/5)=27/5 3 4/5=(15/5)+(4/5)=19/5 5 2/5-3 4/5=(27/5)-(19/5)=8/5= (5+3)/5=1 3/5 6=(6*10)/10=60/10 3=3*10)/10=30/10 6 1/10=(60/10)+(1/10)=61/10 3 4/10=(30/10)+(4/10)=34/10 6 1/10-3 4/10 =(61/10)-(34/10)=27/10= (20/10)+7/10= 2 7/10 10=(...
Thursday, March 3, 2011 at 9:37pm by Bosnian
math 6th grade
10^-2 = 1/10^2 = 1/100 = One-hundredth.
Wednesday, December 14, 2011 at 8:56pm by Henry
5th grade math
any number divided by itself is 1 so 10/10 - 5/5 = 1-1 = 0
Sunday, November 14, 2010 at 10:29pm by Reiny
2nd grade math
tell how to make 10 when adding 8+10
Tuesday, November 2, 2010 at 7:31pm by amanda
7th grade math
The answer is 10 weeks. His mother is giving him .25 for every dollar. He saves $1, he gets .25, $2, he gets .50, etc. In one week, he gets $10. 10 times 10 is 100.
Tuesday, August 25, 2009 at 3:19pm by Gabby
3rd grade math
It snowed 6/10 times. 6/10=3/5
Monday, January 28, 2013 at 6:29pm by Eric
4th grade Math
So 10 L= 10,000 ml
Tuesday, February 9, 2010 at 5:39pm by Dalia
9th grade math
. . x^2=10 x = ± √10 = ± 3.16
Friday, April 3, 2009 at 12:53pm by Reiny
6th grade
1/10 2/10 1/5 3/10 4/10 2/5 5/10 1/2 6/10 3/5 7/10 8/10 4/5 9/10
Tuesday, October 5, 2010 at 10:26pm by Ms. Sue
6TH GRADE MATH
3.5x3= 10.50 10.50divide by 10 = 1.05 sor 3/10 of $3.50 is $1.05
Wednesday, September 22, 2010 at 7:44pm by pushpa
8th Grade Math
1.8*10^7 is correct. In engineering notation, 18*10^6
Wednesday, December 12, 2012 at 8:58pm by bobpursley
3RD GRADE MATH
10 + ? = 20 + 110 10 + ? = 130 ? = 120
Tuesday, September 27, 2011 at 8:47pm by Anonymous
5th grade math
10 squared - 10 + 3 = 93 where do the parentheses go
Monday, October 27, 2008 at 9:26pm by Joe
3rd grade math
The question reads: Reasoning: How can counting by 10's help you multiply by 10's?
Tuesday, December 14, 2010 at 8:44pm by Alexis
6 grade math
Can you help me with this integer problem? -8+6+(-10)+(-2)*(-10) is it 8????
Tuesday, May 15, 2012 at 6:17pm by unknown
1st grade math
6+4 because 14-4=10 or 6+4=10
Wednesday, February 29, 2012 at 9:50pm by Libuse
8th grade math
3.5 X 10 ________ 7 x 10^-9
Sunday, May 1, 2011 at 11:57pm by john
math 5th grade
5/5 * 2/3 = ? 100, 10, 1, 1/10
Wednesday, January 19, 2011 at 9:50pm by helper
math 8th grade
2/10 = .2 5/10=.5 -1.2-0.5 = -1.2+(-0.5)= -1.7
Tuesday, November 11, 2008 at 10:55am by Emma Leigh
8th grade Algebra I (junior level math)
g/5 = 6/10 First, cross-multiply. 10g = 30 Then solve the equation. g = 30/10 g = 3 Now substitute 3 for g. 3/5 = 6/10 Aren't they the same?
Tuesday, December 1, 2009 at 7:23pm by Ms. Sue
4 grade math
Find two mixed numbers so that the sum is 15 3/10 and the difference is 8 5/10
Tuesday, May 21, 2013 at 8:11pm by alyssa
7th grade math
50 divided by 10 EXPLAIN THE DECEMAL MOVEMENT WHEN DIVIDING BY 10.
Thursday, January 6, 2011 at 5:12pm by nick
5th grade math
No, 10*100=1000, not 10,000 so your decimal would be .147
Tuesday, November 2, 2010 at 9:39pm by Jen
3rd grade math
1/2 = 5/10 Which is greater >> 5/10 or 7/10?
Saturday, January 14, 2012 at 3:48pm by Ms. Sue
base 10 notation
The numerals we use in base 10 are 0,1,2,3,4,5,6,7,8,9 I am not certain of your question. Most of us learned base 10 notation by the third grade, then those crazy fourth grade teachers started on base 2.
Tuesday, February 9, 2010 at 11:32am by bobpursley
5th grade
6 - m = 2 3/10 6 - m = 20/10 + 3/10 6 - m = 23/10 -m = 23/10 + 6 -m = 23/10 + 60/10 -m = 83/10 m = -8 3/10
Wednesday, November 17, 2010 at 9:33pm by Thomas
3rd grade math
The answer is 10. Every week frank is getting 5 pots. So 50/5 is 10.
Wednesday, January 11, 2012 at 8:51pm by Anonymous
Third Grade Math
2 * 15 10 + 20 40 - 10 8 + 4 + 6 + 12 26 + 4 21 + 9
Wednesday, September 28, 2011 at 4:46pm by Ms. Sue
math grade 10
1.) express each equation in the form y=mx+b a.) 2x+2y=2 b.) 5x-10=-3y
Monday, February 2, 2009 at 9:59pm by Nini
math grade 10
you can do this: solve for y in each. b) y=-5/3 x + 10/3
Monday, February 2, 2009 at 9:59pm by bobpursley
4th grade math
10 1/3 = 10.333333333 To change a fraction to a decimal, divide the numerator by the denominator.
Wednesday, May 11, 2011 at 4:43pm by Ms. Sue
3rd grade math II
I need to write a sentence for the following Reasoning: How can counting by 10's help you multiply by 10's?
Tuesday, December 14, 2010 at 8:52pm by Alexis
7th grade Math
time she exercises in two weeks: m*10 m is the minutes/day, and 10 is the days exercised.
Monday, September 20, 2010 at 4:40pm by bobpursley
4th grade
You have to multiply 2/5 by 2 to make the denominator 10. Which makes it 4/10. So, 4/10 - 1/10 is..
Wednesday, February 10, 2010 at 6:49pm by John
7th grade math ms. sue please help
If Fran’s fudge recipe calls for 2 and 1/2 cups of sugar and she increases it by 2/5 of a cup, how much sugar does she use? a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 is the answer d because 2 1/2 plus 2/5 equals 2 9/10? If it is incorrect, then why? Thanks!
Monday, October 1, 2012 at 5:19pm by Delilah
7th grade math standard form scientific notation
In standard form: 5. 3.2 x 10^3 7. 4.1 x 10^8 9. Write the average weight of a blue whale, 2.6 x 10^5, in standard form. 15. 2.5 x 10^-3 17. 1.05 x 10^-2 19. Write the size of a grain of very fine sand, about 9.35 x 10^-3 cm, in standard form. Can somebody help? I have been ...
Friday, September 28, 2012 at 7:05pm by Delilah
7th grade math
50/10 = 5 The decimal point moves ONE PLACE TO THE LEFT when dividing by 10.
Thursday, January 6, 2011 at 5:12pm by Ms. Sue
7th Grade x y input output tables
i need help with x and y input output tables for 7th grade i dont understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!
Tuesday, October 9, 2012 at 7:14pm by Sadie
find my grade average
-10% of my grade *82 -20% of my grade *100% *100% *100% *100% *100% *100% *100% *100% *82% -30% of my grade none -40% of my grade *76% reply as soon as possible. thank you!!!!
Sunday, April 18, 2010 at 6:11pm by magy
6th grade math
A: 5/100 is exactly 0.05, not less. 0.05 is 5%, not 50% B. 0.7 is exactly 1/7, but 1/7 is not 10%. 10% is 1/10 C. 2/10 is 20%, not 25% and 0.9 is 90%, not 25% D. 0.3 is not 36%, it's 30%. 36/10 is 3.6, not 36%, which is 0.36. None of them seem correct. D':
Sunday, November 6, 2011 at 12:07am by Jessica
Fifth Grade Math
7/10 times an unknown number can be written as (7/10)x (7/10)x = 175,104,000 Divide 175,104,000 by 7/10 175,104,000 / 7/10 = 175,104,000 * 10/7 1,751,040,000 / 7 = 250,148,571
Monday, December 14, 2009 at 5:21pm by Ms. Sue
math log PLEAseee helpp pretty please!!!
solve for first x 10^y=(x-2) x= 10^y +2 solve for the second x y-1=log(x+1) 10^(y-1)=x+1 or x= 10^(y-1) +1 the x=x, y=y 10^(y-1)+1=10^y +2 remember a^(b-c)= a^b/a^c so 10^y/10 + 1=10^y +2 10^y (-9/10)=1 or -9*10^y=10 log of each side -9 +y=1 y=10 so, now figure x.. x= 10^(y-1...
Thursday, January 20, 2011 at 1:00pm by bobpursley
5th grade math
I need help with this problem ! 5 2/5 - 3 4/5= ? 6 1/10 - 3 4/10 = 10 - 4 2/5= ? PLEASE! SHOW ME EACH PROBLEM STEP BY STEP SO , I CAN FINISH MY HOMEWORK! THANK YOU!
Thursday, March 3, 2011 at 9:37pm by pat
Math
HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5 or 5&1/2 Tell ...
Saturday, December 23, 2006 at 3:38pm by Sanjana
math grade 6
L w = 100 so perimeter = 2 L + 2 w try some values like w L p 1 100 202 2 50 104 4 25 58 5 20 50 10 10 40 we need go no further, 1 by 100 gives the largest and 10 by 10 gives the smallest
Thursday, March 19, 2009 at 4:57pm by Damon
Grade 10 MATH
That's a big number. I don't have room for all of the digits, but in scientific notation, with 9 significant figures, it is 3.17141391*10^141
Wednesday, December 5, 2007 at 7:56pm by drwls
Math
what would happen to your fractions if you changed them all to having a common denominator of 10 4/10 --- 6/10 1/10 --- 3/10 8/10 --- 10/10 or 1 7/10 or 1--- 9/10 13/10 or 1--- 5/10 did you notice that the numerator of the OUT is 2 less than the numerator of the IN ?
Monday, May 6, 2013 at 6:50pm by Reiny
math 3rd grade
5.10.15.20.25.30.... while... 10,20,30........... so Each 10 has two 5's.
Tuesday, December 14, 2010 at 8:55pm by Erin
Math Lit
In a school there are 122 grade 8s, 105 grade 9s, 134 grade 10s, 109 grade 11s, 90 grade 12s. Express Each Class as a percentage of the whole school.
Sunday, February 5, 2012 at 2:42pm by Thabo
3rd grade math
the answer is 8.10 you get this because if yo add.05+.05 it would =.10 so you carry the 1 to the tenths place and then add .70+.30 and then add .10 because that is the answer for the hunthenths place and then it would be.10. Then you add 2+5 then add .10 and you wouled get 8.10
Friday, October 10, 2008 at 5:29pm by fithgrader
statistics
what the error is: a) Grade Percent Frequency A 20% B 45% C 30% D 10% F 5% (b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students. Grade Percent Frequency A 30% B 35% C 15% D 20% F 0%
Monday, May 9, 2011 at 2:57pm by John
pre algebra
it depends on the percent weight of the final exam. (e.g. 40% of your grade, 35% of your grade, etc.) assuming your grading scheme for a B is around 83%... and assume your final exam is worth 40% of your overall grade and the rest of your grade (83.17%) is 60% of your overall ...
Thursday, March 10, 2011 at 9:20pm by gin
For Mattie - Math
2 X 10 square + 3 X 10 to the first + 5 X 10 to the zero +7 X 10 to the negative one in "math" = 2(10^2) + 3(10) + 5(10^0) + 7(10^-1) = 200 + 30 + 5 + 7/10 =235.7 looks like we have the number 235.7 decomposed into its different position values.
Friday, December 7, 2012 at 7:18am by Reiny
9th grade math
42/60 = 21/30 = 7/10 16/80 = 8/40 = 4/20 = 2/10 = 1/5 51/17 = 3 7/33 cannot be reduced.
Sunday, September 19, 2010 at 4:12pm by PsyDAG
7th grade math
you have to subtract 10 from each side in order to isolate the 3y. so you have: 10 - 3y = 1 -10 -10 ______________ -3y = -9 Divide each side by -3 and y =3
Wednesday, September 10, 2008 at 8:49pm by Kearse
4 grade math
find a rule for the output values. write the rule as an eqution that includes the variable A and B. 1. output B: 5,7,9,11 2. output B: 10,7,4,1 3. output B: 6,12,24,48
Tuesday, October 13, 2009 at 3:21pm by 4 grade math
math
Three students from grades 10,11 and 12 were elected to the student council. Grade 10: Tom(T), Sally(s) and Bill(B) Grade 11: Jerry(J),Anne(A)and Connie(C) Grade 12: Dan(D), Martha(M) and Gwen(G) A three member committee is to be formed with one person from each grade. All ...
Friday, January 30, 2009 at 10:54pm by Katie
4th grade math
it's another word for scientific notation. It's "A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10. The scientific notation of 10,492, for example, is 1.0492 ¡Á 104."
Saturday, April 4, 2009 at 8:11pm by Angie
3rd grade math
one 10 is regrouped as 10 ones in each number. work backwards. write the number with 10 ones grouped as 1 ten again. 1.tens ones 5 15
Tuesday, February 26, 2013 at 3:50pm by mythreyee
8 th grade math
there are 6cars,2 trucks, and 2 motorcycles in parking lot. what is the probability that the first vehicle will be a truck? choices are 1/10 ,4/5, 1/5 or answer not here . i answered 1/10 is this right
Monday, May 14, 2012 at 7:50pm by Anonymous
math grade 5
3. you need 12 different outcomes: what about selecting a student at random and finding the probability of him being in grade 1-12? 4. How can you get more than 10 on a spin of two times? the highest number is 4.
Monday, June 6, 2011 at 8:55pm by bobpursley
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