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3 years ago

How many solutions are there to -46=3x+7x

Mathematics

1 answer:

tino4ka555 [31]3 years ago

4 0

Answer:

x = -4.6

Step-by-step explanation:

Step 1: Combine like terms

-46 = 3x + 7x

-46 = 10x

Step 2: Divide both sides by 10

-46 / 10 = 10x / 10

-4.6 = x

Answer: x = -4.6

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3 years ago

What is the next term for the given arithmetic sequence? -3, -2.25, -1.5, -0.75, ...

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3 years ago

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Samara was playing a game. She wrote down this number sentence to find the total number of points for 11 games in a row.

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Step-by-step explanation:

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3 years ago

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Brilliant_brown [7]

Answer:

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Step-by-step explanation:

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For two parallel lines and a transversal,

corresponding angles are equal, and

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3 years ago

80 people were asked which was their favourite animal.

Alex787 [66]

Answer:

(a)Cat

(b)8 animals

Step-by-step explanation:

From the attached diagram:

Let the $\square$ be x.

Half of $\square$ =x/2

From the pictogram, we then have:

$Cat = x+\frac{x}{4} \\Dog=x+\frac{3x}{4}\\Giraffe=2x+\frac{x}{2}\\Monkey =x+\frac{x}{2}\\Dolphin=3x$

Therefore:

$x+\frac{x}{4} +x+\frac{3x}{4}+2x+\frac{x}{2}+x+\frac{x}{2}+3x=80\\8x+\frac{x}{4}+\frac{3x}{4}+\frac{x}{2}+\frac{x}{2}=80\\10x=80\\x=8$

So we have the following numbers

$Cat = x+\frac{x}{4} =8+\frac{8}{4}=10\\Dog=x+\frac{3x}{4}=8+\frac{3*8}{4}=14\\Giraffe=2x+\frac{x}{2}=2*8+\frac{8}{2}=20\\Monkey =x+\frac{x}{2}=8+\frac{8}{2}=12\\Dolphin=3x=3*8=24$

(a)Cat was the least popular

(b) $\square$ represents 8 animals

(c)

Number of People who preferred giraffe=20

Number of People who preferred dogs=14

Difference=20-14=6

Therefore, 6 more people preferred giraffes than dogs.

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3 years ago