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grigory [225]
3 years ago
13

The sum of three consecutive number is 54 Find the first two number.​

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0
  • <em>Answer:</em>

<em>a = 17</em>

<em>b = 18</em>

<em>c = 19</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>a + b + c = 54</em>

<em>b = a + 1</em>

<em>c = a + 2</em>

<em>replace b ; c</em>

<em>a  + (a + 1) + (a + 2) = 54</em>

<em>3a = 54 - 3</em>

<em>3a = 51</em>

<em>a = 51 : 3</em>

<em>a = 17</em>

<em>b = 18</em>

<em>c = 19</em>

<em>Good luck !</em>

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7 0
3 years ago
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Are the triangles Similar? (yes or no). If yes, by what
kakasveta [241]

Answer:

The triangles are not similar

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

<em>Triangle X.Y.Z</em>

\angle X=61^o

\angle Z=90^o

\angle Y=90^o-61^o=29^o ---> angle X and angle Y are complementary angles

<em>Triangle H.G.J</em>

\angle H=90^o-34^o=56^o ---> angle H and angle J are complementary angles

\angle G=90^o

\angle J=34^o

so

X.Y.Z is a61^o-90^o-39^o triangle

H.G.J is a56^o-90^o-34^o triangle

The measure of its corresponding angles are not congruent

therefore

The triangles are not similar

8 0
3 years ago
Find the height of the tree
NeX [460]

Use the property of similarity of triangles =》the corresponding sides of a triangle should be in the same ratio.

Take the missing side as 'x'.

The corresponding sides here are,

■ 7 & 14 ft

■ 5 & x ft

7/14 = 5/x

7x = 5 × 14 (cross multiplication)

7x = 70

x = 70/7

x = 10 ft

Height of the tree = 10 ft.

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Hope it helps ⚜

8 0
2 years ago
Is lmn congruent to opq if so name the postulate
insens350 [35]

Answer:

Option (A)

Step-by-step explanation:

Given:

LM ≅ OP

MN ≅ PQ

∠M ≅ ∠P

To Prove:

ΔLMN ≅ ΔOQP

                   Statements                      Reasons

1). LM ≅ OP                                   1). Given

2). MN ≅ PQ                                 2). Given

3). ∠P ≅  ∠M                                3). Given

4). ΔLNM ≅ ΔOQP                      4). By the SAS postulate of congruence.

                                                         [Side - Angle - Side]                          

Therefore, Option (A) will be the answer.

5 0
4 years ago
Which two values of x are roots of the polynomial below?
Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

2. Plug the given values of a, b, and c into the quadratic formula:

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3. Solve the square root:

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x=\frac{-5+-\sqrt{25-28} }{2(1)}

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4. Simplify the rest:

x=\frac{-5+-\sqrt{-3} }{2}

5. Separate the solutions:

x=\frac{-5+\sqrt{-3} }{2}  , x=\frac{-5-\sqrt{-3} }{2}

Thus, options B and C are the answers.

hope this helps!

4 0
2 years ago
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