1. 6h+5 (h-5)
2. -5d+3 (2d-7)
3. 7+2 (0.20a - 3)
4. -6 - 3 (2k+4)
2007-09-16 09:10:59 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
and also
5. 2(3h+2) - 4h
2007-09-16 09:17:54 · update #1
are you guys positive?
2007-09-16 09:28:54 · update #2
1.) 6h+5h-25 = 11h-25
2.) -5d+6d-21= 1d-21 or d- 21
3.) 7 + 0.4a -6 = 0.4a + 1
4.) -6 - 6k - 12= -6k -18
=)
Edit :
5.) 15.6h + 10.4 - 4h = 11.6h + 10.4
Explanation : What you need to do is distribute by multiplying the number on the left of the parenthesis to the inside of the parenthesis. Then when you're done doing that you combine Like terms. H's with H's, D's with D's , Regular numbers with Reg. Numbers and so on.
= )
2007-09-16 09:18:34 · answer #1 · answered by Kathy© 4 · 0⤊ 0⤋
Perform the calculations in the parentheses first:
1) 6h + 5 (h - 5)
First, multiply 5 x (h - 5):
6h + 5h -25
Now, combine the h terms:
11h - 25
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
2) -5d + 3(2d - 7)
Multiply 3 x (2d - 7):
-5d + 6d -21
d - 21
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
3) 7 + 2(0.2a - 3)
7 + 0.4a - 6
0.4a + 1
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
4) -6 - 3(2k + 4)
-6 - 6k -12
-6k -18
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
5) 2(3h + 2) - 4h
6h + 4 - 4h
2h + 4
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
2007-09-16 16:26:05 · answer #2 · answered by Wile E. 7 · 0⤊ 1⤋
The rule is perform first what is inside the parenthesis. Then do the multiplication, division, addition and last is subraction.
Do you need to get the numeral value of the literal variable? You can do so by putting the numerals on the right side with the opposite sign. Meaning a negative (-) number will become positive once placed on the other side of the equation.
Sample:
6h+5(h-5) (do the multiplication)
6h+5*h-5*5
6h+5h-25 (combine common variable)
11h-25
11h = 25
for number 2, thesolution is:
-5d+3(2d-7)
-5d+6d-21
1d-21
1d=21
2007-09-24 13:49:57 · answer #3 · answered by ces 3 · 0⤊ 0⤋
A few tips first
Clear parenthes
mutiply
divide
addition
Subtraction in that order
#1)6h+5(h-5)
6h+5*h +5*(-5)
6h+5h-25
11h+25
#2)
-5d+3(2d-7)
-5d+3*2d+3*-7
-5d+6d-21
d-21
#3) 7+2(0.02a-3)
7+2*.02a+2*-3
7+.04a-6
13+.04a
#4)
-6-3(2k+4)
-6-3*2k+(-3)*4
-6 -6k-12
-18-6k
2007-09-23 13:17:31 · answer #4 · answered by scide i 2 · 0⤊ 0⤋
1. 6h+5 (h-5) = 6h + 5h - 25 = 11h-25
2. -5d+3 (2d-7) = -5d + 6d -21 = d - 21
3. 7+2 (0.20a - 3) = 7 + 0.40a - 6 = 1 + 0.40a
4. -6 - 3 (2k+4) = -6 -6k -12 = -6k-18
2007-09-24 09:20:32 · answer #5 · answered by Will 4 · 0⤊ 0⤋
1) 6h + 5 (h - 5)
6h +5h - 25
11h - 25
2) -5d+3(2d-7)
-5d+6d-21
d-21
3) 7+2(0.20a-3)
7 + 0.04a - 6
0.04a + 1
4) -6 -3(2k+4)
-6 -6k -12
-6k - 18
I have answered your questions correctly
So as a suggestion try to solve these questions again by your self because believe me you well not able to help you next time besides you lose 5 points for each question.
GOOD LUCK
2007-09-24 13:00:20 · answer #6 · answered by Rayan Ghazi Ahmed 4 · 0⤊ 0⤋
1. 6h + 5(h - 5)
= 6h + 5h - 25
= 11h - 25
2. -5d + 3(2d - 7)
= - 5d + 6d - 21
= d - 21
3. 7 + 2(0.20a - 3)
= 7 + 0.4a - 6
= 0.4a + 1
4. - 6 - 3(2k + 4)
= - 6 - 6k - 12
= - 6k - 18
2007-09-21 21:24:11 · answer #7 · answered by Jun Agruda 7 · 2⤊ 0⤋
1. 6h + 5(h - 5)
= 6h + 5h - 25
=h - 25
2. -5d + 3(2d - 7)
= -5d +6d -21
= d -21
3. 7 +2(0.20a - 3)
= 7+ 0.4a - 6
= 0.4a +1
4. -6 -3(2k+4)
= -6 -6k -12
= -6k - 18
2007-09-21 02:52:22 · answer #8 · answered by billako 6 · 0⤊ 0⤋
multiply first the figures so the first one: means 6h+ 5*h +5*-5
1: 6h+5h-25=11h-25
2. -5d+6d-21= d-21
3. 7+ 0.40 a- 6= 0.40a+1
4. -6 - 6k-12= -18-6k
5: 2*3h+2*2-4h= 6h+4-4h= 2h+4
2007-09-16 16:18:43 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Question 1
6h + 5h - 25 = 11 h - 25
Question 2
- 5d + 6d - 21 = d - 21
Question 3
7 + 0.4 a - 6 = 1 + 0.4 a
Question 4
- 6 - 6k - 12 = - 6k - 18
2007-09-22 13:13:25 · answer #10 · answered by Como 7 · 2⤊ 0⤋