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Lyrx [107]
2 years ago
5

Evaluate the expression x=-4.9 and y=-1.3 -5x+7y

Mathematics
1 answer:
Flura [38]2 years ago
8 0

Answer:

15.4

Step-by-step explanation:

-5×(-4.9) +7×(-1.3)

=24.5+(-9.1)

=24.5-9.1

==15.4

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son4ous [18]
The volume of this box is indeed 84 in^3.  What were you looking for beyond that?

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5 0
3 years ago
Read 2 more answers
It is one more than the sum of the first three natural numbers, followed by the 24th letter of the alphabet. Please help
Luda [366]

Answer:

The set of natural numbers is the set of all positive integers, then this set is:

{1, 2, 3, ...}

and the 24th letter of the alphabet is x

Now we want to write the expression given in the sentence "It is one more than the sum of the first three natural numbers, followed by the 24th letter of the alphabet"

We can "break" this in parts, so it is easier to understand.

Then:

"...the sum of the first 3 natural numbers..."

is:

1 + 2 + 3

Then:

"...the sum of the first 3 natural numbers, followed by the 24th letter of the alphabet"

This can be written as:

(1 + 2 + 3) + x

Now we can analyze the complete sentence:

"It is one more than the sum of the first three natural numbers, followed by the 24th letter of the alphabet"

This is equal to the expression we found above plus one, then we can write this as:

[(1 + 2 + 3) + x] + 1

[6 + x] + 1

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4 0
3 years ago
Q5.) Use the model to determine when the population of the country will be 827 million.
Aneli [31]
The country population would be 827 million in about 20 years.

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8 0
3 years ago
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kifflom [539]
U kno how to simplify
3 0
3 years ago
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Nataly [62]

Answer:

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Step-by-step explanation:

Let the two numbers be x and y

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y=-9-x

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x+9+x=-41

2x=-41-9

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x=-25

y=-9-(-25)

y=16

6 0
3 years ago
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