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Pre-Algebra
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OpenStudy (mstv1112):
Will Fan and Medal if you can help :)
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OpenStudy (mstv1112):
1. Which property is shown? 4 • (6 • 3) = (4 • 6) • 3
Associative Property of Addition
Commutative Property of Multiplication
Associative Property of Multiplication
Distributive Property
2. Use the Distributive Property to multiply: 5(x + 7).
5x + 7
5x + 35
7x + 5
12x
3. Simplify: 2(w + 3) + 6w.
8w + 6
8w + 3
2w + 9
7w + 6
4. Simplify: –3(2a – 1) + 5.
–6a + 2
6a + 8
6a + 2
–6 a + 8
5. Is this equation true, false, or an open equation? 33 + 9 = 44
true
false
open sentence
Solve each equation.
6. 7 + r = 13
r = 6
r = 13 over 7
r = 20
r = –6
OpenStudy (ccswims):
1. is C
OpenStudy (ccswims):
2. is B
OpenStudy (ccswims):
And the rest are very easy
OpenStudy (redheadangel):
5 is false
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OpenStudy (mstv1112):
6. r=6
OpenStudy (ccswims):
yes
OpenStudy (ccswims):
you got 6. correct
OpenStudy (mstv1112):
3. 8w+6
OpenStudy (redheadangel):
correct again!
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OpenStudy (mstv1112):
I don't get #4
OpenStudy (mstv1112):
@redheadangel @ccswims #4
OpenStudy (ccswims):
whats -3 x 2?
OpenStudy (redheadangel):
start with distributive property
OpenStudy (ccswims):
its D
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OpenStudy (mstv1112):
-6
OpenStudy (ccswims):
-3 x 2 = -6
-3 x 1 = -3 cancel out 3 and add 5 + 3 = 8
-6a + 8
OpenStudy (mstv1112):
Help with two more?
OpenStudy (mstv1112):
OpenStudy (mstv1112):
7. c=100
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OpenStudy (ccswims):
7. is correct
OpenStudy (mstv1112):
just need help with 10
OpenStudy (ccswims):
A
OpenStudy (mstv1112):
Okay Thank You guys sooo much I really appreciate it
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