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3 years ago

Please answer the question in the picture

Mathematics

2 answers:

NARA [144]3 years ago

8 0

Answer:

$x = 14$

First answer is correct

Step-by-step explanation:

$2x + 5 + 3x + 15 = 90 \\ 5x + 20 = 90 \\ 5x = 90 - 2 0\\ 5x = 70 \\ \frac{5x}{5} = \frac{70}{5} \\ x = 14 \: \: degrees$

<h3>( COMPLEMENTARY ANGLES)</h3>

hope this helps

brainliest appreciated

good luck! have a nice day!

Dominik [7]3 years ago

7 0

So the right answer is 14

Look at the attached picture

hope it will help you..

good luck on your assignment

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2. Find the number of cubical

lys-0071 [83]

Answer:number of boxes = 60

Volume of box = side × side × side.

= 3 × 3 × 3

= 27 cu. cm.

Volume of carton = length × breadth × height.

= 15 × 9 × 12

= 1620 cu. cm.

Number of boxes = Volume of carton/Volume of each box.

= 1620/27

= 60

Therefore, number of boxes = 60.

Step-by-step explanation:Volume of box = side × side × side.

= 3 × 3 × 3

= 27 cu. cm.

Volume of carton = length × breadth × height.

= 15 × 9 × 12

= 1620 cu. cm.

Number of boxes = Volume of carton/Volume of each box.

= 1620/27

= 60

Therefore, number of boxes = 60.

3 0

4 years ago

Help please! I do not exactly understand how to do this. Thanks!

Radda [10]

X and Y are supplementary, that means X + Y = 180.

But we have, X = Y +24, then

X + Y = Y + 24 + Y = 2Y + 24 = 180

Then

2Y = 156

Y = 78

Then X = 78 + 24 = 102.

6 0

3 years ago

A professor compares the number of students at his school majoring in statistics, engineering, both, or neither.

Ymorist [56]

Answer:

Step-by-step explanation:

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3 years ago

Ayuda 7×9÷2= note : btw how to get rid of this ad ?

JulijaS [17]

Step-by-step explanation:

7×9÷2

By using the rule of BODMAS , we get

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5 0

3 years ago

Read 2 more answers

Sorry Guys, Angle 12 & 10 are effectively corresponding angles, but angle 10 & 7 are alternate interior angles. Anyways,

Irina-Kira [14]

Answer:

Step-by-step explanation:Angle 12 & 10 are effectively corresponding angles, but angle 10 & 7 are alternate interior angles. Anyways, Angle 12 & 10 are congruent and 10 & 7 are congruent. At the end, the three angles 12, 10, and 7 have the same measure. If we put it otherwise, the line B is intersecting line D which form right angles equals to 90 degrees, so angle 12 = 90, and the same happens with angle 10 and 7, so the three angles are congruent, but at the same time, angle 7 is supplementary with angle 12 because their sum is equal to 180, (90 + 90 = 180). If you think from different angles is hard to choose the right answer, so what I guess is that we don't need to take into account the angle 10, just the fact that line A intersect line C, and Line B intersect line D forming right angles, and that angle 7 and 12 are right angles which sum equals 180, therefore, we could say that they are supplementary angles, but also congruent because they measure the same, so at the end,

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3 years ago