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3 years ago

In 2015, Ed spent $800 buying lunches. In 2017, he spent $550 buying lunches. What was the rate of change from 2015 to

Mathematics

1 answer:

marta [7]3 years ago

7 0

9514 1404 393

Answer:

$125 per year

Step-by-step explanation:

In the 2 years from 2015 to 2017, the spending on lunches increased by ...

$800 -550 = $250

That is an average per year of ...

$250/(2 yr) = $125/yr . . . . average dollar increase per year

_____

<em>Additional comment</em>

For costs, it is often true that they follow an exponential curve, not a linear one. Ed's spending increased by a factor of 800/550 = 16/11 in the two years, so an average percentage increase of √(16/11) -1 = 20.6% per year.

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Goryan [66]

Answer:

119 4/7

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Two sets of quadratic expressions are shown below in various forms: Line 1: x2 + 3x + 2 (x + 1)(x + 2) (x + 1.5)2 − 0.25 Line 2:

Rainbow [258]

Line 1:
Expanding the vertex form, we have
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3 years ago

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hichkok12 [17]

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2 years ago

Mrs. Bautista invested Php2700.00 part at 8% and the rest at 11% .How musch did she invest at each rate if her total annual inco

Margarita [4]

Answer:

The answer to the question is

She invested

Php2700.00 at 8 % and

Php 20,400.00 at 11 %

Step-by-step explanation:

To solve the question we note that

Simple interest is given by $\frac{P*R*T}{100}$ where

P= Principal, R = Rate and T = Time

If we call the first part P₁, T₁, and R₁ and the second part

P₂, T₂, and R₂

Then ${P_1*(1+R_1*T_1}) +{P_*(1+R_2*T_2}) = 2460.00$

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2244÷0.11 = P₂ or P₂ = Php 20,400.00

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Php2700.00 at 8 % and

Php 20,400.00 at 11 %

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3 years ago

Item cash car (paid off) credit card debt motorcycle debt savings

MrMuchimi

Answer:

Step-by-step explanation:

add his cash,car that's paid off,and his savings.

=6,015.52

then you add his credit card debt and motorcycle debt together

=1,797.98

subtract the two.

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