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Alika [10]
2 years ago
14

5x + 7y = 5 10x + 14y = 10 solve by elimination​

Mathematics
2 answers:
sesenic [268]2 years ago
8 0
Multiply the first equation by -2
Reika [66]2 years ago
6 0

The answer is:

x= 46/5

y= 5/7

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Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex. If Mr. Zelman has 800 comic books, then how many w
BARSIC [14]

Mr. Zelman gave 400 books to his nephew

<em><u>Solution:</u></em>

Given that, Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex

Mr. Zelman has 800 comic books

Number of books with Zelman = 800

Mr. Zelman wants to give 50% of books to Alex

Number of books given to nephew = 50 % of books of Zelman

Therefore, we have to find 50 % of 800

\rightarrow 50 \% \text{ of } 800

\rightarrow 50 \% \times 800\\\\\rightarrow \frac{50}{100} \times 800 = 400

Thus he gave 400 books to his nephew

4 0
3 years ago
What is the image of point (0,3) for mapping (x,y) (x-2,y-3)
Ann [662]
When it asks for the image, that means what are your new coordinates after doing the rules they give you. In this, the rule is to subtract 2 from your x value and subtract 3 from the y value. So you subtract 2 from 0 and subtract 3 from 3. This will give you the values to use for the x and y of your answer:)
5 0
3 years ago
What is the mode?<br> 2 -9 2 -8 -9 -9 -8 4
Llana [10]

Answer:

-9

Step-by-step explanation:

The mode is the value that appears most often in a set of numbers, and the number -9 appears the most in this set.

3 0
3 years ago
Each week, tasha saves 90% of the money she earns babysitting and spends the rest. this week she earned $60.00. how much more mo
padilas [110]
She saved $54 spent $6  so she saved $48 more then she spent
6 0
3 years ago
the temperature at the south pole was -39degree f at 8am. at 3pm it was 10degree f, by how many degrees did the temperature rise
natita [175]

Answer:

Step-by-step explanation: start at -39 degrees. You need to find how many degrees is between -39 and 10 degrees.

+39+10= 49 degrees risen

6 0
3 years ago
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