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Nimfa-mama [501]
2 years ago
9

Simplify the picture is attach ​

Mathematics
1 answer:
astra-53 [7]2 years ago
7 0
It is the third one (5x^2-2xy-10x+4y)
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A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes.
Paladinen [302]

Answer:

Answer:

\{ {{20x+30y=280} \atop {y=4x}} .{

y=4x

20x+30y=280

.

Where xx is the number of small boxes sent and yy is the number of large boxes sent.

Step-by-step explanation:

Let be xx the number of small boxes sent and yy the number of large boxes sent.

Since each small box can hold 20 books (20x20x ), each large box can hold 30 books (30y30y )and altogether can hold a total of 280 books, we can write the following equation to represent this:

20x+30y=28020x+30y=280

According to the information provided in the exercise, there were 4 times as many large boxes sent as small boxes. This can be represented with this equation:

y=4xy=4x

Therefore, the system of equation that be used to determine the number of small boxes sent and the number of large boxes sent, is:

\{ {{20x+30y=280} \atop {y=4x}} .{

y=4x

20x+30y=280

.

7 0
3 years ago
What is (0.54)⋅(3.8)=
ra1l [238]

Answer:

2.052

Step-by-step explanation:

I hope it helped lot sj

8 0
2 years ago
Read 2 more answers
12 The cost of a telephone call is $0.60 for the first three minutes plus $0.17 for each additional minute. What is the greatest
rusak2 [61]
The correct answer would be j (18) because all you have to do is keep adding 0.17 and keep counting until you get to the 2.50 mark. I hope I helped you
8 0
3 years ago
Read 2 more answers
Please help!!!!!!!!!!
Sunny_sXe [5.5K]

Answer:

From the chapter Playing with numbers

we can define derek has 2×10^2 + 7 × 10^1 + 7× +0^0

as If ABC a number then ABC can be written as 10^2A+10^1B+10^0C

Hope it helps

7 0
2 years ago
Please help me due soon<br> Answer ASAP <br> Someone please do this right
ra1l [238]

Advice:

I've seen this around quite a bit. what image is it referring to? I cannot answer this because there is no image.

8 0
2 years ago
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