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3 years ago

How do you Solve this system of equations: y=2x-1 4x+3y=7

Mathematics

2 answers:

denis-greek [22]3 years ago

8 0

Answer:

(1,1)

Step-by-step explanation:

See the steps below:)

Alla [95]3 years ago

4 0

Answer:

(1, 1)

Step-by-step explanation:

I've attached a picture above. Do tell me if you're still confused. This is just one of many methods

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A student scored 83 and 91 on her first two quizzes. Write and solve a compound inequality to find the possible values for a thi

mixer [17]

Let x be the score of the 3rd quiz,, then the average score will be:
(83+91+x)/3, which = (174+x)/3. but this average should be greater or equal to 85 and smaller or equal to 90:

85 ≤ (174+x)/3 ≤ 90
1st multiply all terms with 3 → 255 ≤(174+x) ≤ 270
2nd subtract 173 from all terms → 255-174 ≤174-174+x ≤270-174
81 ≤ x ≤ 96

7 0

3 years ago

Draw to show the regrouping add 63 and 9

Makovka662 [10]

72 because 63 + 9 is basically 9×8

7 0

3 years ago

Need help please make sure your right people have been saying wrong answers

sweet [91]

Answer:

Step-by-step explanation:

Trust me, take the square root of 24, which divides into 2 x 2 x 2 x 3, and you pull a pair of 2 out, left inside a 6

7 0

3 years ago

Read 2 more answers

Somebody help me out

Bumek [7]

The number that produces an irrational number when multiplied by 0.4 is 3π. The correct option is A. $3\pi$

To determine which number produces an irrational number when multiplied by 0.4

First and foremost, 0.4 is a rational number.

A rational number is a number that is of the form $\frac{p}{q}$ where p and q are integers and q is not equal to 0.

0.4 can be written as $\frac{4}{10}$ or $\frac{2}{5}$ , hence, it is a rational number.

Now,

Any irrational number when multiplied by a rational number other than zero will also be irrational.

Therefore, we are to determine which of the given options is an irrational number.

For option A. 3π

π is an irrational number, therefore 3π is also an irrational number

For option B. 0.444...

0.444... can be expressed as 4/9, therefore it is a rational number

For option C. $\sqrt{9}$

$\sqrt{9}$ = 3, which can be expressed as 3/1, therefore it is a rational number

For option D. $\frac{2}{7}$

$\frac{2}{7}$ is a rational number

The only irrational number among the given options is 3π

Hence, the number that produces an irrational number when multiplied by 0.4 is 3π. The correct option is A. $3\pi$

Learn more here: brainly.com/question/11763957

8 0

2 years ago

F(x)= 13,500 .89x, is this growing or decay

Oksanka [162]

I hope and think it’s 12015
Because this what I did I (.89)x
And x = 13500 and I got 12015

8 0

4 years ago