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eduard
3 years ago
10

“21 less than three-fifths of a number”

Mathematics
1 answer:
Amanda [17]3 years ago
4 0
3/5x-21 is the answer(I think) if not it’s 21-3/5x
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Please help asap
KengaRu [80]

Answer:

one

Step-by-step explanation:

they meet at only one point, thus their system of equations has as solution only those coordinates.

8 0
2 years ago
Must a function that is decreasing over a given interval always be negative over that same interval ? Explain
Leno4ka [110]
Check the picture below.

5 0
3 years ago
Read 2 more answers
When Tomas simplified the expression -2.6 + (-5.4), he got 2.8. what mistake did Tomas likely make?
vladimir2022 [97]

Tomas used incorrectly the rule of signs, the expression should be simplified as follows:

-2.6 + (-5.4)

-2.6 -5.4 = 8

<h3></h3><h3>What mistake did Tomas likely make?</h3>

Here Tomas wants to perform an addition between two numbers:

-2.6 + (-5.4)

And the outcome that Tomas gets is:

-2.6 + (-5.4) = 2.8

Here his mistake seems to bee that he thought the second number was a positive number, and he solved the operation:

-2.6 + 5.4

So, he used wrong the rule of signs.

Remember that the rule of signs says that:

(-)*(+) = (+)*(-) = (-)

Using that, we can rewrite the original expression:

-2.6 + (-5.4)

to:

-2.6 - 5.4

Solving that, we get:

-2.6 - 5.4 = -8

Which is the outcome that Tomas would have gotten if he had used correctly the rule of signs.

If you want to learn more about the rule of signs:

brainly.com/question/13333620

#SPJ1

5 0
2 years ago
In ΔHIJ, the measure of ∠J=90°, JH = 81 feet, and HI = 91 feet. Find the measure of ∠I to the nearest degree.
kakasveta [241]

Answer:

63°

Step-by-step explanation:

  • Sin0=\frac{81}{91}
  • x=sin^{-1}(81/91)\\\\
  • = 62.887
  • ≈ 63°

༻﹡﹡﹡﹡﹡﹡﹡༺

hope it helps...

have a great day!!

8 0
3 years ago
Ron’s class donated d dollars to a local charity. Danny’s class donated 21% more than Ron’s class. Which expression shows the am
Anna [14]

Answer:

It is A

Step-by-step explanation:

Your welcome

Let me know if you ever need help! :)

3 0
3 years ago
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