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Nimfa-mama [501]
3 years ago
15

Is (9,5) a solution to the inequality y<5x+9?

Mathematics
2 answers:
Shalnov [3]3 years ago
5 0

Answer:

yes, it is

Step-by-step explanation:

andreyandreev [35.5K]3 years ago
4 0

Answer:

yes it is because 9 times 5 is 45 plus 9 is 54 and 54 is greater than 5

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Write a related addition equation for the subtraction equation.
Bess [88]

Answer:

-7+12 will also give u 5 with a positive sign

8 0
3 years ago
A local sorority sold hot dogs and bratwursts at the spring fling picnics. The first day they sold 8 dozen hot dogs and 13 dozen
kicyunya [14]

Answer:

1 hot dog costs $0.75

1 bratwurst costs $1.35

Step-by-step explanation:

Let x and y be the price per dozen of hot dogs and bratwursts respectively.

The first day they sold 8 dozen hot dogs and 13 dozen bratwursts for ​$282.60

8x + 13y = 282.60

The second day they sold 10 dozen hot dogs and 15 dozen bratwursts for a total of ​$333.00

10x + 15y = 333

and we have the linear system

<em>8x + 13y = 282.60 </em>

<em>10x + 15y = 333 </em>

which can be written in matrix form as

\bf \left(\begin{array}{cc}8&13\\10&15\end{array}\right)\left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{c}282.60\\333\end{array}\right)

The solution would be given by

\bf \left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{cc}8&13\\10&15\end{array}\right)^{-1}\left(\begin{array}{c}282.60\\333\end{array}\right)

We have  

\bf \left(\begin{array}{cc}8&13\\10&15\end{array}\right)^{-1}=\left(\begin{array}{cc}-3/2&13/10\\1&-4/5\end{array}\right)

hence

\bf \left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{cc}-3/2&13/10\\1&-4/5\end{array}\right)\left(\begin{array}{c}282.60\\333\end{array}\right)=\left(\begin{array}{c}9\\ 16.2\end{array}\right)

Now,

if a dozen hot dogs cost $9, 1 hot dog costs 9/12 = $0.75

if a dozen bratwursts cost $16.2, 1 bratwurst costs 16.2/12 = $1.35

4 0
3 years ago
the smaller rectangle is a 1/4 scale drawing of the original figure. Use the drop-down menus to show the missing dimensions of t
mihalych1998 [28]

Answer:the answer is 363

Step-by-step explanation:

4 0
3 years ago
HELLPP ME PLEASE!!!! I WILL GIVE 30 POINT AND BRAIN LIST THIS IS DUE IN 30 MINUTES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tatyana61 [14]

Answer:

Any value greater than 19 hours.

Step-by-step explanation:

hope it helps

3 0
3 years ago
Help please<br> Write a word problem that could be solved by using the equation 10.75 = 5.5n?
labwork [276]
If you make $10.75 a day, how many hours do u work if u get paid $5.5 per hour?

the answer would be 1.95 hours or you could put at least 2 hours
5 0
3 years ago
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