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lapo4ka [179]
2 years ago
13

1.

Mathematics
1 answer:
Harlamova29_29 [7]2 years ago
8 0

Answer:

a) x = 1

Step-by-step explanation:

Given: 2x + 3 = 5

1. Subtract 3 from both sides:

2x + 3 - 3 = 5 - 3

⟹ 2x = 2

2. Divide both sides by 2:

2x ÷ 2 = 2 ÷ 2

⟹ x = 1

3. Check your work:

2(1) + 3 = 5

2 + 3 = 5

⟹ 5 = 5 ✔

Learn more about solving algebraic equations here:

brainly.com/question/27597890

brainly.com/question/25229258

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To indirectly measure the distance across a lake, Nachelle makes use of a couple landmarks at points D and E. She measures CF, F
g100num [7]

Answer:

207.68 m

Step-by-step explanation:

From the diagram,

ΔDEC is similar to ΔFGC

Therefore,

(DE)/(FG) = (DC)/(FC).............. Equation 1

make line DE the subject of the equation

DE = [(DC)(FG)/(FC)]................ Equation 2

From the diagram,

Given: DC = 190 m, FG = 142.1 m, FC = 130 m

Substitute these values into equation 2

DE = (190×142.1/130)

DE = 207.68 m

Hence the distance across the lake is 207.68 m

3 0
3 years ago
Who wrote most definitive text on geometry
djverab [1.8K]

Answer:

Euclid

Step-by-step explanation:

Euclid was a Greek geometer who wrote the Elements, the world's most definitive text on geometry. The book synthesized earlier knowledge about geometry and was used for centuries in Western Europe as a geometry textbook.

6 0
3 years ago
The graph below shows a proportional relationship between x and y.
Bas_tet [7]

Answer:

  • 3.5

Step-by-step explanation:

Use point (1, 3.5) on the graph

x = 1, y = 3.5

  • y/x =
  • 3.5/1 =
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k = 3.5

7 0
2 years ago
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Solve for x and y:
Pachacha [2.7K]

Answer:

A= I think because it is definite not c so there is a solution differently I know so that is my final answer.

Sorry if I am wrong.

4 0
3 years ago
Please help me with this i am doing a test 4 times as many as 13? (3 points)
barxatty [35]
4+13= 17
4/13=0.307
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8 0
3 years ago
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