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PtichkaEL [24]
4 years ago
5

Will give brainliest please help ASAP

Mathematics
1 answer:
DIA [1.3K]4 years ago
5 0

Answer:

(-1,3)

Step-by-step explanation:

2x-3y=9  multiply by 3 to get      6x-9y = 27

3x+5y=4  multiply by -2 to get    -6x-10y= -8  

Add together                               -19y=19, y= -1

Put y into either equation =>   2x-3(-1)=9, 2x+3=9, 2x=6, x=3

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Mathematics formulas​
PolarNik [594]

Step-by-step explanation:

Math Formulas

Math formulas are expressions that have been created after several decades of research that help to solve questions quickly. It is easy to perform simple arithmetic calculations such as addition, subtraction, and so on. However, when it comes to algebraic expressions, geometry, and other topics you need mathematical formulas to simplify the process of reaching the answer and saving time in the process. At Cuemath you will not only find formulas for every topic but will also get an idea of how that equation was developed. Thus, you will not have to memorize formulas, as you understand the concept behind them.

Use these formulas to solve problems creatively and you will automatically see an improvement in your mathematical skills. Given below is the list of formulas alphabetically arranged for your convenience. Hence, you can easily find formulas that need to be revised or require to be referenced.

The links to the list of math formulas available on different topics have been arranged alphabetically for your convenience. So pick a topic and start learning!

List of All Math Formulas

Depending on what grade you belong to and what topic is being attempted, you can find all possible math formulas. All variations of the math formulas available with their proofs and derivations are given below. So what are you waiting for? Get started on your learning journey today!

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6 0
2 years ago
41.2 x 1.5. Then explain where the decimal point should go and why
Vinil7 [7]

Answer:

This is really simple, here i'll explain:

Step-by-step explanation:

41.2 x 1.5=

count how many spaces are after the decimal point.

for example, 41.2 has 1 space after the decimal point. The decimal 1.5 also has 1 space after the decimal point. So if you add the spaces it would be 2 because 1 + 1 = 2

After that, take away the decimal point, and just multiply like you normally would.

412 times 15

this would be 6180

after you do the multiplication, you will add the decimal point.

The decimal point will go in between 1 and 8 because there were 2 spaces after the decimal point in the numbers, and if you add them it would be 2 spaces.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Which set is a function?
4vir4ik [10]
I can help
yes
yupahhhhh
8 0
3 years ago
A boy starts the week with 3kg of rice, every day he cooks 0.6kg. How much rice will he have left after 4 days?
almond37 [142]

Answer:

1.8 Kg

Step-by-step explanation:

a week- 3kg rice

every day-0.6 kg rice

therefore, multiply 3 kg by 0.6kg

3kg x 0.6kg =1.8 kg

he will have 1.8 kg rice after 4 days

have a great day !

5 0
3 years ago
PLS HELP!!!<br> simplify 3^2 x 3^4 x 3^6= <br> 3^10<br> 3^12<br> 3^0<br> 3^40
EastWind [94]

Answer:

3¹² is answer

Step-by-step explanation:

3^(2+4+6)

3^12

4 0
2 years ago
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