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allsm [11]
3 years ago
10

Help n explain pleaseee ​

Mathematics
2 answers:
wel3 years ago
7 0

Answer:

(3, 7)

Step-by-step explanation:

Just substitute x = 3 into the equations.

2(3) + 4y = 34

6 + 4y = 34

4y = 28

y = 7

natta225 [31]3 years ago
6 0

Answer:

(3,7)

Step-by-step explanation:

does not matter what you put x into so choose one, out come is the same.

2(3)+4y=34

6+4y=34

4y=28

do remove y and the 4 divide both sides by 4

y=7

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Answer:

see in pdf the solution is there.

Step-by-step explanation:

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3 0
2 years ago
Please answer. Confusing me. 20 points.
Sedbober [7]
The answer is either x = -1 or x = 4.
7 0
2 years ago
Dion ran 3.75 kilometers each day to prepare for a race.
Sladkaya [172]

Answer:

105 km

Step-by-step explanation:

3.75 x 28 = 105 km

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Read 2 more answers
Order the numbers 0.2, 1/5, 0.02, 0.022 from least to greatest.
PSYCHO15rus [73]
0.022, 0.02, 0.2, 1/5, 
7 0
3 years ago
Thomas took three 100-point quizzes, and the mean score for the three quizzes was 87 points. If the highest score is taken away,
Olegator [25]

Answer:

The highest score is 94.

Step-by-step explanation:

Let the highest score be denoted by, <em>A</em>, the lowest score be, <em>B</em> and the middle score be <em>X</em>.

Then,

A + X + B = 87 × 3 = 261 ...(i)

X + B = 83.5 × 2 = 167 ...(ii)

⇒ B = 167 - X ...(iii)

A + X = 89 × 2 = 178 ...(iv)

⇒ A = 178 - X ...(v)

Substitute (iii) and (v) in (i) and solve for <em>X</em> as follows:

A + X + B = 261

178 - X + X + 167 - X = 261

345 - X = 261

X = 84

Substitute the value of <em>X</em> in (iii) and solve for B as follows:

B = 167 - X

   = 167 - 84

   = 83

Substitute the value of <em>X</em> in (v) and solve for A as follows:

A = 178 - X

   = 178 - 84

   = 94

Thus, the highest score is 94.

5 0
2 years ago
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