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goblinko [34]
3 years ago
7

Given the information below, match the following items.

Mathematics
2 answers:
Veronika [31]3 years ago
7 0
If two angles are complementary, then it they add up to 90 degrees. 
<span>If they add up to 90 degrees, then they are right angles </span>

<span>So, If two angles are complementary, then they are right angles </span>

<span>Converse: If two angles add up to 90 degrees, then they are complementary. T </span>
<span>Inverse: If two angles are not complementary, then they do not add up to 90 degrees T </span>
<span>Contrapositive: If two angles do not add up to 90 degrees, then they are not complementary angles T </span>

<span>Hope this helps! ;D</span>
Kisachek [45]3 years ago
4 0

Given Statement:

If two angles add to 90^\circ, then they are complementary.

1. Converse:

If two angles are complementary, then they add to 90^\circ. This is the true statement.

2. Inverse

If two angles do not add to 90^\circ, then they are not complementary.This is the true statement.

3. Contrapositive

If two angles are not complementary, then they do not add to 90^\circ.This is the true statement.

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One number is five less than a second number. Five times the first is 15 more than 6 times the second. Find the numbers
Shalnov [3]

Answer:

x = -45, y = -40

Step-by-step explanation:

Based on the first clue, we find out that

x + 5 = y

5x = 6y + 15

We can re-write the first equation to x = y - 5.

Therefore, the second equation can also be written as 5(y - 5) = 6y + 15

This can be simplified to 5y - 25 = 6y + 15

We can subtract 6y from each side, and add 25 to each side;

5y - 6y = 15 + 25

Therefore, -y = 40

Therefore y = -40.

Now let's plug this back into the original equation, to get : x  + 5 = -40

x=-45

4 0
2 years ago
30+6⋅7+8 need help asap!!!!
Sladkaya [172]

Answer:

80 :D!

Step-by-step explanation:

30 + (6 x 7) + 8

30 + 42 + 8

72 + 8

= 80

Hope this helps! Brainliest plz?

8 0
2 years ago
Read 2 more answers
Can someone explain this step by step please
levacccp [35]

Answer:

2

Step-by-step explanation:

Since x=-2

-2+3y=4

Add 2 on both sides

3y=6

Divide 3 on both sides

y=2

3 0
3 years ago
Read 2 more answers
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mea
zheka24 [161]

Answer:

$301 - $397

Step-by-step explanation:

Using the Empirical rule

1) 68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ .

2)95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .

3)99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ .

From the above question,

Mean = 349 , standard deviation = 24.

Confidence interval = 95%

Using 2)95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .

μ – 2σ

= 349 - 2(24)

= 349 - 48

= 301

μ + 2σ

349 + 2(24)

= 349 + 48

= 397

Therefore, according to the standard deviation rule, approximately 95% of the students spent between $301 and $397 on textbooks in a semester.

8 0
3 years ago
What is 15 tens - 1 gross ​
vampirchik [111]

Answer:

see the explanation

Step-by-step explanation:

we know that

A gross is equal to 120 ones or ten dozen

what is 15 tens - 1 gross

we know that

15 tens means ----> That you are adding 10, 15 times or multiplying 10 by 15, which gives you

10(15)=150

1 gross means ---> That you are adding 10, 12 times or multiplying 10 by 12

which gives you

10(12)=120

so

The algebraic expression of 15 tens - 1 gross is equal to

150-120=30

Convert to word expression

3  tens

8 0
3 years ago
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