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4 years ago

Solve the following system using the elimination method: 2a+2b=4 and 4a-3b=8

Mathematics

2 answers:

hodyreva [135]4 years ago

5 0

2a+2b=4 a=1 and b=1

4a-3b=8 a=5 and b=4

hope i helped ya

Lorico [155]4 years ago

4 0

A = 2
b = 0

2a + 2b = 4 → 4a + 4b = 8

(4a + 4b = 8) - (4a - 3b = 8) → 7b = 0

b = 0

so a = 2

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4 years ago

There are 12 inches in 1 foot. Jada is working on improving her vertical jump. She records,

guajiro [1.7K]

Answer:

There are 72 inches in 6 feet.

Step-by-step explanation:

Given:

There are 12 inches in 1 foot.

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Currently, her standing reach is 6 feet from the ground.

Now, to find the inches in 6 feet.

Let the inches in 6 feet be $x.$

As given:

In 1 foot there are 12 inches.

So, 1 foot is equivalent to 12 inches.

Thus, 6 feet is equivalent to $x$

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4 years ago

-2 4/5 + 1/4 equals what ?

vlada-n [284]

Hey there! :)

Since 2 4/5 is greater than 1/4, the answer is negative.

You can just subtract 2 4/5 and 1/4 and add the (-) sign

2 4/5 - 1/4

Change the fractions so they can have a common denominator: 20

2 4/5 = 2 16/20

1/4 = 5/20

2 16/20 - 5/20 = 2 11/20

Add the (-) sign → -2 11/20

Answer ⇒ -2 11/20

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3 years ago

What is the sum of the interior angles of the polygon shown below?

crimeas [40]

Answer: 360 degrees!

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4 years ago

Read 2 more answers

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For this case, the first thing we must do is calculate the number of attendees who will make purchases.
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We are now looking for the number of attendees that each vendor will attend.
We have then:
N = (27300) / (10)
N = 2730
Answer:
the average number of customers each will serve is:
N = 2730

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3 years ago