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ss7ja [257]
4 years ago
13

Can anybody help me please

Mathematics
2 answers:
FrozenT [24]4 years ago
6 0

4x + 5y = 13

  • Is (2, 1) a solution to the given linear equation?

4(2) + 5(1)

8 + 5 = 13

(2, 1) is a solution to the given linear equation

  • Is (-3, 0) a solution to the given linear equation

4(-3) + 5(0)

-12 + 0 = -12

(-3,0) is not a solution to the given linear equation

  • Is (0, 1) a solution to the given linear equation

4(0) + 5(1)

0 + 5 = 5

(0, 1) is not a solution to the given linear equation

Hope this helps :)

Alexus [3.1K]4 years ago
3 0

Answer:

The answers follow in order, yes, no, and no.

Step-by-step explanation:

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nikklg [1K]

here's the answers

  1. 17-6
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5 0
3 years ago
I need help with this asapp
Yakvenalex [24]

Answer:

I think 2.15

because 309.60 divided to 2.15 is equal to 144

6 0
3 years ago
0.39<br> which is best buy<br> 0.41<br> 0.4.
Nana76 [90]

Answer:

0.39 because it's the cheapest / least

Step-by-step explanation:

Ok so we are trying to find the least. So first line up your decimals as shown below

<u>Tens</u>          <u>Tenths</u>      <u>Hundredths</u>

<h3>   0      .        3              9</h3><h3>---------------------------------------</h3><h3>   0      .        4              1</h3><h3>---------------------------------------</h3><h3>   0      .        4              0 ---> Imaginary 0</h3><h3 />

Now fill in any empty spaces with a 0 as shown in the decimal 0.4, your decimal will still have the same amount because 0.4 = 0.40 = 0.400 no matter how many 0's you put in the decimal.

When your done with placing 0's, look at the numbers in the first column, the Tens column. As you can see we have the numbers 0, 0, 0. They're all the same so we don't have to worry about that. Now lets go to the next column, the Tenths column. We have the numbers 3, 4, 4. Remember, we are finding the least amount. we know 3 is less than 4 so the decimal with the 3 in the Tenths place is the best buy. If these numbers were the same we would go on to the next place, the Hundredths place. If 2 of the decimals had a 3 in the Tenths place, you would eliminate the decimal with no 3 in the Tenths place and go on to the next place using only the decimals you have left.

So, <em>0.39</em> is the best buy.

Hope this helps you and makes Sense! :)

This is NOT copy pasted, I actually wrote all of this so that the person reading this answer can understand what I'm trying to explain.

Thank you, and have a Great Day! ;)

5 0
3 years ago
Which situation can be represented by the expression -2-5−2−5minus, 2, minus, 5?
pychu [463]

The situation that represents the expression 2 - 5 is (a) the temperature was 2°C and has decreased by 5°C

<h3>How to determine the situation?</h3>

The expression is given as:

2 - 5

When the expression illustrates change in temperature, the interpretation can be:

An initial temperature of 2°C decreases by 5°C

Hence, the situation that represents the expression 2 - 5 is (a) the temperature was 2°C and has decreased by 5°C

Read more about expressions at:

brainly.com/question/723406

#SPJ1

6 0
2 years ago
BC=<br> Round your answer to the nearest hundredth.
mrs_skeptik [129]

Answer:

BC ≈ 1.71

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos70° = \frac{adjacent}{hypotenuse} = \frac{BC}{AB} = \frac{BC}{5}

Multiply both sides by 5

5 × cos70° = BC , thus

BC ≈ 1.71 ( to the nearest hundredth )

3 0
3 years ago
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