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agasfer [191]
2 years ago
15

Michael started a savings account with $300. After 4 weeks, he had $350 dollars, and after 8 weeks, he had $400. What is the rat

e of change of money in his savings account per week?
HELP ASAP!
Mathematics
1 answer:
GarryVolchara [31]2 years ago
7 0

Answer:

he gets 50 more each week

Step-by-step explanation:

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Given points A (-3,-4) and B (2,0), points P (-1,-12/5) partitions line AB in the ratio
kvv77 [185]
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
&A&(~ -3 &,& -4~) 
&P&(~ -1 &,& -\frac{12}{5}~)
\end{array}
\\\\\\
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
AP=\sqrt{[-1-(-3)]^2+[-\frac{12}{5}-(-4)]^2}
\\\\\\
AP=\sqrt{(-1+3)^2+(-\frac{12}{5}+4)^2}\implies AP=\sqrt{2^2+\left( \frac{8}{5} \right)^2}
\\\\\\
AP=\sqrt{4+\frac{64}{25}}\implies AP=\sqrt{\cfrac{164}{25}}\implies AP=\cfrac{\sqrt{164}}{\sqrt{25}}
\\\\\\
\boxed{AP=\cfrac{2\sqrt{41}}{5}}



\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
&P&(~ -1 &,& -\frac{12}{5}~) 
&B&(~ 2 &,& 0~)
\end{array}
\\\\\\
PB=\sqrt{[2-(-1)]^2+[0-\left(-\frac{12}{5}  \right)]^2}
\\\\\\
PB=\sqrt{(2+1)^2+\left( \frac{12}{5} \right)^2}\implies PB=\sqrt{9+\frac{144}{25}}\implies PB=\sqrt{\cfrac{369}{25}}
\\\\\\
PB=\cfrac{\sqrt{369}}{\sqrt{25}}\implies \boxed{PB=\cfrac{3\sqrt{41}}{5}}

so, let's check the ratio of AP:PB

\bf AP:PB\implies \cfrac{AP}{PB}\implies \cfrac{\frac{2\sqrt{41}}{5}}{\frac{3\sqrt{41}}{5}}\implies \cfrac{2\underline{\sqrt{41}}}{\underline{5}}\cdot \cfrac{\underline{5}}{3\underline{\sqrt{41}}}\implies \cfrac{2}{3}
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3 years ago
​Dolbear's law states the relationship between the rate at which Snowy Tree Crickets chirp and the air temperature of their envi
tia_tia [17]
I assume that if we write the equation in its mathematical form it will appear like this:
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The value of N from the generated equation above is equal to 72. Therefore, the Snowy Tree Crickets chirp 72 times per minute at a temperature of 58°F.
6 0
3 years ago
Read 2 more answers
The difference between two numbers is 14. if 1/3 of the larger number is subtracted from the smaller number ,the result equals 1
otez555 [7]

Answer:

Step-by-step explanation:

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Jerome tries to find the value of the expression 3 - 6 + 5 by first applying the commutative property.He rewrites the expression
Afina-wow [57]
By moving the signs he actually changed the number itself. He changed -6 from a negative to a positive and 5 from a positive to a negative. Both equations give different answers. 

Hopefully this helps :)
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A store sells 1/4 pound of beef for $0.75. If u are having a party and need 6 pounds of beef for hamburgers,using the unit rate,
hodyreva [135]

1/4 pound beef, b = $0.75

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