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2 years ago

Simplify this algebraic equation: 3y - 7(5x + 2y)

Mathematics

1 answer:

Taya2010 [7]2 years ago

8 0

Answer: -11y - 35x

Step-by-step explanation:

This problem utilizes the Distributive Property of Multiplication. It states that: a(x + y) = ax + ay.

Thus, utilizing this property (distributing -7), change the equation into:

3y - 35x - 14y

Then, simply combine like terms to get:

-11y - 35x

Hope it helps :) and let me know if you want me to elaborate.

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valentina_108 [34]

Answer:

16 mm

Step-by-step explanation:

Dilation multiplies every length by the dilation factor.

E'F' = (2/5)EF = (2/5)(40 mm) = 16 mm

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3 years ago

How can I improve my math? How can I get better grades and scores in competitions like AMC 8, 10, 12, and MATHCOUNTS? I get low

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Answer:

1. You r not dumb or stupid ur just having a hard time

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2 years ago

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3 years ago

What is -0.8 as a fraction?

stira [4]

Answer:

$-\frac{4}{5}$

Step-by-step explanation:

There is not much that can be done to figure out how to write 0.8 as a fraction, except to literally use what the decimal portion of your number, the .8, means.

Since there are 1 digits in 8, the very last digit is the "10th" decimal place.

So we can just say that .8 is the same as 8/10.

The fraction is not reduced to lowest terms. We can reduce this fraction to lowest terms by dividing both the numerator and denominator by 2.

Why divide by 2? 2 is the Greatest Common Divisor (GCD) or Greatest Common Factor (GCF) of the numbers 8 and 10.

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2 years ago

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Answer:

Jack will weigh 26.52 pounds

Step-by-step explanation:

x = 156 (Your weight on Earth)

y = 0.17 (Surface Gravity)

z = Your weight on the moon

x * y = z

156 * 0.17 = 26.52

Jack will weigh 26.52 pounds.

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2 years ago