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vazorg [7]
2 years ago
7

(2x+3)+(5x17)+90=180

Mathematics
2 answers:
klasskru [66]2 years ago
5 0

Answer:

x=10

Step-by-step explanation:

Alex73 [517]2 years ago
3 0

Answer:

x is 10 degrees

Step-by-step explanation:

180-90=90

(2x+3)+(5x+17) = 90

7x+20=90

7x=70

x=10

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#10
amm1812

Answer:

There are 3 green marbles in the box.

Step-by-step explanation:

15% = 0.15

To figure out how much 15% of 21 is, you must multipl the decimal form of the percentage by the whole number. This will give you how much of that number that percentage is.

0.15 * 21 = 3.15  

But you can't have 0.15 of a marble, so you must round as well.

3 green marbles in the box.

3 0
3 years ago
a rectangular prism measures 2 in by 4 in by 8 in what is the side length of a cube with the same volume
Umnica [9.8K]
<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ First find the volume of the rectangular prism:

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Now you need to cube root it, this would be because all lengths of a cube are equal:

\sqrt[3]{64} = 4

The side length would be 4 inches.

<h3><u>✽</u></h3>

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7 0
4 years ago
Can someone help me on this problem please? I'm not sure how to figure it out. Thank you! :P
Dafna11 [192]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
The diagram shows a right triangle with legs that measure 4 and 7.
anyanavicka [17]

Calculate the hypotenuse( h ) using Pythagoras' identity

h =√(4² + 7²) = √(16 + 49) = √65

sinΘ = 4 / √65  ⇒ cscθ = √65 / 4

cosθ = 7/ √65 ⇒ secθ = √65 / 7

tanθ = \frac{4}{7} ⇒ cotθ = \frac{7}{4}



3 0
3 years ago
What is 2,617 rounded to the nearest ten
Dmitry [639]
The answer would be 2,6 .
5 0
3 years ago
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