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LUCKY_DIMON [66]
3 years ago
7

3(4x+1)+6(x-3)I need help with this

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
8 0
If you simplify the expression you will get 18x - 15.
Anettt [7]3 years ago
4 0

1.) Using distributive property, you get 12x + 3 + 6x - 18. Combing like terms, your answer is:

18x - 15.

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HELP< FINAL EXAMSSSSSS MATHHH
Genrish500 [490]

Answer:

what do you need help on

5 0
3 years ago
Which reaction describes a beta emission?  2659Fe→ 2759Co +  −10e  88226Ra→ 86222Rn +  24He ��94239Pu +  24He→ 96242Cm  +  01n  
shepuryov [24]

Correct question:

Which reaction describes a beta emission?  2659Fe→ 2759Co +  −10e,   88226Ra→ 86222Rn +  24He, 94239Pu +  24He→ 96242Cm  +  01n,  54118Xe→ 53118I +  +10e

Answer:

2659Fe→ 2759Co + 1e

Step-by-step explanation:

General equation for beta decay is given as;

^A_zX -> \ ^A_{z+1}Y +\  ^0_{-1} \beta

where;

A is the atomic mass of the element

z is atomic number of the element

X is the parent atom

Y is the daughter element

β is beta emission

In beta emission, there is loss of one electron and zero proton, the will cause the daughter element to gain on electron in order to balance the reaction.

Based on beta decay equation above, we select the reaction that describes beta emission.

2659Fe→ 2759Co + 1e

Here;

A = 59

z = 26

z + 1 = 27

5 0
3 years ago
Read 2 more answers
A music store buys instruments and then sells them for 30% more than they paid.
nasty-shy [4]

Answer:

$45.00 * 0.30 = $13.50

$45.00 - $13.50 = <em>$31.50</em>

4 0
3 years ago
Read 2 more answers
Not sure if my answer is right
Gala2k [10]


yes it would be d go back read the answers and think about each one


5 0
3 years ago
A stadium has two sections, A and B.
Alekssandra [29.7K]
ANSWER: a=12 b=15
Explanation: (look at work below)

4a + 1b = 63 (eq1)
5a + 3b = 105 (eq2)
-12a + -3b = -189 (subt. eq1 from eq2)
————————-
-7a = -84
a = 12
4(12) + 1b = 63 (plug in the a value)
48 + 1b = 63
b = 15
5 0
3 years ago
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