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Elanso [62]
2 years ago
14

I don't really understand this Please help.

Mathematics
1 answer:
nekit [7.7K]2 years ago
6 0

Answer:

The first one, third one, fourth one, and sixth one.

Step-by-step explanation:

I hope this helps!

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Solve the following system of equations. <br> y = 12 - 5x <br> 2x + 3y = 11
Sindrei [870]
Use substitution
2x + 3(12 - 5x) = 11
Distributive property
2x + 36 - 15x = 11
Combine like terms
-13x + 36 = 11
Subtract 36
-13x = -25
x = 25/13
y = 12 - 5(25/13)
y = 31/13
Solution: x = 25/13, y = 31/13
4 0
2 years ago
1/5 ÷ 2. simple for a couple of points lol
Sergio039 [100]

0.1

Have a amazing day!!

8 0
3 years ago
Read 2 more answers
Which expression is equivalent to 7(-3k)
rosijanka [135]

Answer:

-21k=7(-3k)................………………

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3 years ago
What is a budget? (Need 2 sentences or more)
jeka57 [31]

For this case, we have that by definition, a budget refers to:

<em>An advance calculation of the cost of a work or a service. </em>

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As another definition we have:

<em>A set of expenses and income expected for a certain period of time. In the same way, it can be defined as a plan of operations and resources of a company.</em>

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4 0
2 years ago
If avogadro's number of pennies is divided equally among the 250. million men, women, and children in the united states, how man
Anastasy [175]

We divide the pennies 100 to convert pennies to dollar

1 pennies= 1/100 dollar

Then we will convert 6.02×10∧23 p to dollar

=1 dollar/100 pennie ×6.02×10∧23

= 6.02×10∧21

The total men and women and children in 250 m  

=25×108

6.02×10∧21/2.5×10∧8

= 2.408×10∧13


6 0
3 years ago
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