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Mrac [35]
3 years ago
13

3

Mathematics
2 answers:
Mariulka [41]3 years ago
6 0
0.05
0.5
0.507
0.57
0.577
Inessa [10]3 years ago
5 0

Answer:

0.05, 0.5, 0.507, 0.57, 0.577

Step-by-step explanation:

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2x-4y=8 and 7x-3y=61 solve by substitution
Ratling [72]

Answer:

(10, 3)

Step-by-step explanation:

Solve by Substitution

2x − 4y = 8 and 7x − 3y = 61

Solve for x in the first equation.

x = 4 + 2y 7x − 3y = 61

Replace all occurrences of x with 4 + 2y in each e quation.

Replace all occurrences of x in 7x − 3y = 61 with 4 + 2y. 7 (4 + 2y) − 3y = 61

x = 4 + 2y

Simplify 7 (4 + 2y) − 3y.

28 + 11y = 61

x = 4 + 2y

Solve for y in the first equation.

Move all terms not containing y to the right side of the equation.

11y = 33

x = 4 + 2y

 Divide each term by 11 and simplify.

y = 3

x = 4 + 2y

 

Replace all occurrences of y with 3 in each equation.

Replace all occurrences of y in x = 4 + 2y with 3. x = 4 + 2 (3)

y = 3

Simplify 4 + 2 (3).

x = 10

y = 3

The solution to the system is the complete set of ordered pairs that are valid solutions.

(10, 3)

The result can be shown in multiple forms.

Point Form:

(10, 3)

Equation Form:

x = 10, y = 3

4 0
3 years ago
Read 2 more answers
What is the solution to -3a-4
Aleksandr-060686 [28]

Answer:

answer is 7a proved

Step-by-step explanation:

sloution

=-3a-4

=-+- =+ so,

=-3a-4

=7a

mark me as brainlist

8 0
3 years ago
Math problems: Inequalities:
Alex73 [517]
Hey Jeremy,

1. x < 4
2. b > -5
3. w > -3
4. g < -3

Hope this helps! <3
7 0
3 years ago
Read 2 more answers
If 8 pounds of grass seed are divided equally into five piles, what is the weight of one of these piles? A) 5 /8 pound Eliminate
inna [77]
The answer to this is B. 8/5 pounds. 

8 pounds divided into 5 piles=1.6 or 8/5
6 0
4 years ago
Read 2 more answers
In one 30-gram serving of snack crackers, there are 24 grams of carbohydrates. What fraction of a serving is made up of carbohyd
Nostrana [21]

Answer:

\frac{4}{5}

Step-by-step explanation:

30/2=15

24/2=12

15/3=5

12/3=4

4/5

4 0
3 years ago
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