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3 years ago

11. Solve for x: 2x - 3 = -7 + x

Mathematics

2 answers:

My name is Ann [436]3 years ago

4 0

Answer:

x=-4

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

Sophie [7]3 years ago

3 0

Answer:

x = -4

Step-by-step explanation:

Step 1: Write equation

2x - 3 = -7 + x

Step 2: Solve for <em>x</em>

Subtract x on both sides: x - 3 = -7
Add 3 to both sides: x = -4

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

2(-4) - 3 = -7 + (-4)

-8 - 3 = -7 - 4

-11 = -11

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andriy [413]

Answer:

1303.45 cm

Step-by-step explanation:

The triangles formed by a rod and its shadow and a tree and its shadow are similar triangles, so the ratios of their heights to the lengths of their shadows are equal.

Let x be the height of the tree. Setting the ratios equal, we get:

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3 years ago

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Answer:

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3 years ago

21. A linear function g(x) passes through the points (3, -1) and (-6, -4). What is the y-intercept of the function? Write the so

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Answer:

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6 0

4 years ago

3. The sum of the measures of a complement and a supplement of an angle is 200. What is the measure of the angle?

klasskru [66]

Hi there!

Let th' required angle = X

Then,

• Complement of th' angle = 90 - X
• Supplement of th' angle is = 180 - X

According to th' question,
Sum of Complement and Supplement :-

(90 - X) + (180 - X) = 200

⇒ 90 - X + 180 - X = 200

⇒ 270 - 2X = 200

⇒ 2X = 270 - 200

⇒ 2X = 70

⇒ X = $\dfrac {70}{2}$ = 35

Hence,
Th' measure of the angle is 35°

~ Hope it helps!

5 0

3 years ago