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3 years ago

Write a related subtraction fact for 9+3=12. Explain how the two facts are related

Mathematics

2 answers:

seropon [69]3 years ago

8 0

9-3=6 that is how it's
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postnew [5]3 years ago

5 0

12-3=9 they switch up and it still equals the same thing

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The number of pounds of dog food that a pet store has is represented by the equation y = negative 15 x + 430, where x represents

sertanlavr [38]

Answer: B) 115 pounds

Step-by-step explanation:

Because x is the number of days passed, after 21 days, x = 21.

$y = -15(21)+430\\\\Multiply\\\\y = -315+430\\\\y=115$

Hope it helps <3

6 0

3 years ago

Read 2 more answers

Graphing linear equations 2x+4y=-8

d1i1m1o1n [39]

The easiest way to graph this equation is using the x and y intercepts. Plug zero in for x to solve for y, then plug zero in got y to solve for x.

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3 years ago

Need to know the population in 2015

Margarita [4]

$\bf P=1110.9e^{kt}\quad 
\begin{cases}
P=1200 &\textit{in thousands}\\
t=2 &\textit{in 2002}
\end{cases}\implies 1200=1110.9e^{k2}
\\\\\\
\cfrac{1200}{1110.9}=e^{2k}\implies ln\left( \frac{1200}{1110.9} \right)=ln(e^{2k})\implies ln\left( \frac{1200}{1110.9} \right)=2k
\\\\\\
\cfrac{ln\left( \frac{1200}{1110.9} \right)}{2}=k\implies 0.0385755\approx k\implies 0.0386\approx k\\\\
-------------------------------\\\\$

$\bf P=1110.9e^{0.0386t}\qquad 
\begin{cases}
t=14\\
\textit{year 2015}
\end{cases}\implies P=1110.9e^{0.0386\cdot 14}
\\\\\\
P\approx 1907.0747\implies about\ 1,907,075\textit{ once rounded up}$

3 0

3 years ago

Is 2, 4, and 5 right

hram777 [196]

4 and 5 are right, but 2 isn't because consonants are the opposite of vowels. So, you wouldn't use a or e.

6 0

3 years ago

Brandon decided to make his own hand sanitize. To be effective and sanitizer

icang [17]

Answer:

Step-by-step explanation:

The water has to be 100% - 60% = 40%

100% represents both water alcohol (I think that's what you meant).

40% of 250 = 40/100 * 250 = 10000/100 = 100 mL

So 100 mL = water

150 mL = alcohol.

4 0

3 years ago