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trasher [3.6K]
3 years ago
5

Solve for x below in the equation​

Mathematics
2 answers:
sweet [91]3 years ago
6 0

Answer:

Step-by-step explanation:

7x + 2x =90 (being perpendicular)

9x =90

x =90/9

x =10

substiute the value of x

7x

=7*10

=70

2x

=2*10

=20

Naya [18.7K]3 years ago
3 0

Answer:

x = 10

Step-by-step explanation:

See image. Due to the logic of vertically opposite angles (when one angle is equal to the other that is "vertically opposite" to it), the two angles that I have marked in the diagram are going to equal.

Therefore, if we were to write it out:

2x + 7x = 90

(vertically opposite angles)

       9x = 90

     ∴  x = 10

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A giraffe is 18 feet tall and has a 12 foot shadow. Mark has a 4 foot shadow. How tall is Mark?
Sindrei [870]

Answer:

6 foot

Step-by-step explanation:

so you can make a ratio out of it kinda

height : shadow height

18 : 12

1.5 : 1

so if its height : 4

the height would be 6 (4 + 2)

hope that makes sense :)

6 0
3 years ago
What is .125 times 2 but in fraction form?
liubo4ka [24]
1/4 one fourth is the answer to your question
5 0
4 years ago
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A factory can produce 50 refrigerators in 8 hours.
Readme [11.4K]

Answer:

C. 200 h

Step-by-step explanation:

1250 / 50 = 25

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4 0
3 years ago
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vredina [299]
PART A

Volume = Area of a triangle base x height (..or length)
Volume = 2,400cm^3
Volume = 1/2(16)(h)(20)
2,400cm^3=1/2(16)(h)(20)
2/400cm^3/160 = 160(h)/160
Part A= 15cm^3=height of the box

PART B

Surface Area = 1/2(15*16)(2)+20(17)(2)+16(20)
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Surface Area = 1,240
Part B = You will need approximately 1,240cm of cardboard.
8 0
4 years ago
Emily measures 3 pieces of string with the first piece measures 642 cm the second piece measures 124 cm and the third piece is 1
NeX [460]

Answer: the total length of the string is 9 meters.

Step-by-step explanation:

The total number of strings that Emily measured is 3.

The length of the first piece of string measures 642 cm.

The length of the second piece of string measures 124 cm.

The length of the third piece of string measures 134 cm.

Therefore, the total length of the 3 pieces of string would be

642 + 124 + 134 = 900 cm.

100 cm = 1 m,

Converting 900 centimeters to meters, it becomes

900/1100 = 9 meters

3 0
3 years ago
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