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Ierofanga [76]
3 years ago
14

brian just started using a budget he proudly tells friends that his budget helps him know where his money is being spent it allo

ws him to spend some money on entertainment with the peace of mind that he will be able to pay the rent and even gives him more money each month evaluate brian's understanding of budgeting
Mathematics
2 answers:
serg [7]3 years ago
6 0
Brian understands budgeting quite well. If you have an expense that isn't a need, you absolutely need to budget for it. If you don't budget for these things, you won't be able to afford necessities. 
nadezda [96]3 years ago
6 0

Answer:

Step-by-step explanation:

From the given information we find that a budget gives a better idea to have the plan of expenses for different heads.

In this case, Brain's contention that  his budget helps him know where his money is being spent it allows him to spend some money on entertainment with the peace of mind that he will be able to pay the rent and even gives him more money each month is very accurate

Budget gives us an idea about the amount spent for luxuries or entertainment and hence gives an analysis, control, and replan.

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WHO WANTS BRANLIEST?!?!?!?!?!?!?!?
denis23 [38]

Answer:

I Do

Step-by-step explanation:

5 0
3 years ago
What would equal -1.11 when you divide by -4?
erik [133]

Answer:

x= -4.44

Step-by-step explanation:

4 0
3 years ago
A pizza pan is removed at 9:00 PM from an oven whose temperature is fixed at 450°F into a room that is a constant 70°F. After 5​
gladu [14]

Answer:

A) It will get to a temperature of 125°F at 9:19 PM

B) It will get to a temperature of 150°F at 9:16 PM

C) as time passes temperature approaches the initial temperature of 450°F

Step-by-step explanation:

We are given;

Initial temperature; T_i = 450°F

Room temperature; T_r = 70°F

From Newton's law of cooling, temperature after time (t) is given as;

T(t) = T_r + (T_i - T_r)e^(-kt)

Where k is cooling rate and t is time after the initial temperature.

Now, we are told that After 5​ minutes, the temperature is 300°F.

Thus;

300 = 70 + (450 - 70)e^(-5k)

300 - 70 = 380e^(-5k)

230/380 = e^(-5k)

e^(-5k) = 0.6053

-5k = In 0.6053

-5k = -0.502

k = 0.502/5

k = 0.1004 /min

A) Thus, at temperature of 125°F, we can find the time from;

125 = 70 + (450 - 70)e^(-0.1004t)

125 - 70 = 380e^(-0.1004t)

55/380 = e^(-0.1004t)

In (55/380) = -0.1004t

-0.1004t = -1.9328

t = 1.9328/0.1018

t ≈ 19 minutes

Thus, it will get to a temperature of 125°F at 9:19 PM

B) Thus, at temperature of 150°F, we can find the time from;

150 = 70 + (450 - 70)e^(-0.1004t)

150 - 70 = 380e^(-0.1004t)

80/380 = e^(-0.1004t)

In (80/380) = -0.1004t

-0.1004t = -1.5581

t = 1.5581/0.1004

t ≈ 16 minutes.

Thus, it will get to a temperature of 150°F at 9:16 PM

C) As time passes which means as it approaches to infinity, it means that e^(-kt) gets to 1.

Thus,we have;

T(t) = T_r + (T_i - T_r)

T_r will cancel out to give;

T(t) = T_i

Thus, as time passes temperature approaches the initial temperature of 450°F

6 0
3 years ago
Write 2,670,000 in scientific notation.
hjlf
Scientific notation is just rewritten so that it has a single digit in front of the decimal and that this is multiplied by a power of ten that makes this decimal equal to the original number.

In this case we have 2.67 million.  Well a million is equal to 10^6, because 10*10*10*10*10*10=one million.

So in scientific notation you would write:

2.67X10^6
5 0
2 years ago
Factor: a^2+b^2–c^2+2ab
Kruka [31]

Rearrange the polynomial:

a^2–2ab+b^2 - c^2

((a-b)(a-b))-c^2

(a-b)^2-c^2

Set x =a-b and y=c. The formula becomes

x^2-y^2

factoring this polynomial, we get

(x+y)(x-y)

Substituting back, we get:

(a+b+c)(a+b-c)

Let’s multiply it out to check:

A^2 -ab ac

- ab B^2 -bc

-ac bc -c^2

6 0
3 years ago
Read 2 more answers
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