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kolezko [41]
3 years ago
8

A bag contains green marbles and blue marbles, 18 in total. The number of green

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

Step-by-step explanation:

Let the number of blue marbles be x

The number of green marbles = 3x - 2

Total marbles= 18

x + 3x -2 = 18

4x - 2 = 18

     4x = 18+2

      4x = 20

x =20/4

x =5

The number of blue marbles = 5

The number of green marbles = 3*5 - 2 = 15 -2 = 13

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I believe it’s 2 because rise/run and 14/7 = 2
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4 years ago
Name the values of the given digits the 4s in a 4400
IRISSAK [1]
The values of 4s that are present in 4400 are 4 thousands and 4 hundreds.
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so the value of first 4 is 4 thousands and second 4 is 4 hundreds.
5 0
4 years ago
Pls help! <br> and a reason.
Rasek [7]

Answer:

\angle BDA = 72^{\circ}

\angle DAB = 36^{\circ}

\angle BDC = 108^{\circ}

\angle BCD = 36^{\circ}

\angle DBC = 36^{\circ}

Step-by-step explanation:

Given

\angle ABD = 72^{\circ}  

Required

Determine the missing angles

Since AB = AD, then:

\angle ABD = \angle BDA --- Base angles of an isosceles triangle

Hence:

\angle ABD = \angle BDA = 72^{\circ}

\angle ABD + \angle BDA + \angle DAB = 180^{\circ} --- angles in a triangle

72^{\circ} + 72^{\circ} + \angle DAB = 180^{\circ}

144^{\circ} + \angle DAB = 180^{\circ}

Collect Like Terms

\angle DAB = 180^{\circ} - 144^{\circ}

\angle DAB = 36^{\circ}

\angle BDA + \angle BDC = 180^{\circ} --- angle on a straight line

72^{\circ} + \angle BDC = 180^{\circ}

\angle BDC = 180^{\circ} - 72^{\circ}

\angle BDC = 108^{\circ}

Since ABC is isosceles, then:

\angle DAB = \angle BCD = 36^{\circ} --- base angle of isosceles

\angle BCD = 36^{\circ}

Lastly:

\angle BCD + \angle BDC + \angle DBC = 180^{\circ}

36^{\circ} + 108^{\circ} + \angle DBC = 180^{\circ}

\angle DBC = 180^{\circ} - 36^{\circ} - 108^{\circ}

\angle DBC = 36^{\circ}

<em>See attachment</em>

3 0
3 years ago
In a right angle,the altitude to a 6ft hypotenuse.Find the length of the altitude and each leg.
Nuetrik [128]

Answer:a=3.6 and b=4.8

Step-by-step explanation:(a^2)+(b^2)=(c^2)

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To check work simply plug in your legs as a and b

(3.6^2)+(4.8^2)=(6^2)

(12.96)+(23.04)=(36)

6 0
4 years ago
Which features are present in this polar graph?
Blababa [14]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\texttt {D. Symmetry about the polar axis Theta = 0}

____________________________________

\large \tt Solution  \: :

The given graph is symmetric along Theta = 0

[ polar axis ]

Because it's a horizontal line that divides the features on the graph into two equal halves. and there's no other suitable symmetric relation.

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

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