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3 years ago

Darryl is three inches taller than Reggie. Their heights, combined is 138 inches. How tall is Reggie?

Mathematics

1 answer:

Tju [1.3M]3 years ago

3 0

Answer:

69 inches.

Step-by-step explanation: First you need to divide the height of both of them. You would get 69 and 73 if you add both numbers you would get 138 inches.

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Evaluate m² + 12q if m = 5 and q = -3

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Answer: -11

Step-by-step explanation: 5 squared is 25 and 12(-3) is 36 and 25+-36=-11

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3 years ago

What is the solution for -10 < x - 9?

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-10 < x - 9

Add 9 to both sides:

-1 < x

The correct answer would be option C

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3 years ago

5(3-6x)=4(3x+7)+5x<br> solve the following equation

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5(3-6x)=4(3x+7)+5x
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2 years ago

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An investment services company experienced dramatic growth in the last two decades. The following models for the company's reven

zlopas [31]

Answer: a) 138.32 and b) 35 years approx.

Step-by-step explanation:

Since we have given that

$R(t)=21.4e^{0.13t}\\\\C(t)=18.6e^{0.13t}$

So, Profit is given by

$Profit=R(t)-C(t)\\\\Profit=21.4e^{0.13t}-18.6e^{0.13t}\\\\Profit=e^{0.13t}(21.4-18.6)\\\\Profit=2.8e^{0.13t}$

Difference in years of 1990 and 2020=30

So, Profit becomes :

$P(30)=2.8e^{0.13\times 30}\\\\P(30)=2.8\times 49.40\\\\P(30)=138.32$

(b) How long before the profit found in part (a) is predicted to double? (Round your answer to the nearest whole number.) years after 1990.

So, profit doubles , we get :

$138.32\times 2=2.8e^{0.13t}\\\\276.65=2.8e^{0.13t}\\\\\dfrac{276.65}{2.8}=e^{0.13t}\\\\98.80=e^[0.13t}\\\\\ln 98.80=0.13t\\\\4.593=0.13t\\\\\dfrac{4..593}{0.13}=t\\\\35.33=t$

Hence, a) 138.32 and b) 35 years approx.

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3 years ago

Emma was given 5 seashells. Each week she collected 3 more. Let w be the number of weeks Emma collects seashells and s be the nu

FinnZ [79.3K]

Answer:

s=5+3w independent variable is 5+3w. Dependent variable is s, since the total depends on the amount of weeks plus the 5 seashells from the start. s=5+4(3)=17 s=5+5(3)=20 s=5+6(3)=23 s=5+7(3)=26 s=5+8(3)=29 s=5+9(3)=32 s=5+10(3)=35

Step-by-step explanation:

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3 years ago

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