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GrogVix [38]
2 years ago
14

Please help im desperate no. 48 and 49​

Mathematics
2 answers:
stealth61 [152]2 years ago
8 0

Answer:

C and (3, 6 )

Step-by-step explanation:

(48)

Since given y = 2x the best method of solving is by substitution C

(49)

Given the 2 equations

3x + y = 15 → (1)

y = 2x → (2)

Substitute y = 2x into (1)

3x + 2x = 15

5x = 15 ( divide both sides by 5 )

x = 3

Substitute x = 3 into (2) and evaluate for y

y = 2x = 2 × 3 = 6

solution is (3, 6 )

exis [7]2 years ago
3 0

Answer:

48. option C : Substitution

49. Option D :  ( 3, 6)

Step-by-step explanation:

3x + y = 15       ------------- ( 1 )

      y = 2x  ------------------- ( 2 )

Substitute ( 2 ) in ( 1 ) :

3x + y = 15

3x + 2x = 15

5x = 15

x = \frac{15}{5} = 3

Substitute x in ( 2 ) :

y = 2x

y = 2 × 3 = 6

The solution to the system of equation is ( 3 , 6 )  

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olganol [36]

Answer:

24

Step-by-step explanation:

what is the smallest number which is a multiple of both 8 and 12? so, an multiple of 8 must have 2 as a factor at least 3 times. Similarly, multiples of 12 have at least two 2's and one 3. so we need 2x2x2x3 or 24 if every factor is to be included.

I'm not the best at explaining but you can search google to get the better Idea.

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6 0
3 years ago
(Inscribed Angles)
Alik [6]

Answer:

(D) 30 degrees

Step-by-step explanation:

An inscribed angle is an angle formed by two chords in a circle which have a common endpoint.

<u>Theorem(Inscribed Angles Conjecture I): </u>In a circle, the measure of an inscribed angle is half the measure of the central angle with the same intercepted arc.

By the theorem above and from the attached diagram,

Inscribed Angle p =Half of 60 degrees

\angle p=0.5 X 60^\circ\\p=30^\circ

<u>The correct option is D.</u>

4 0
2 years ago
Please help me please will give brainliest to anyone who is good <br><br>show your work ​
AfilCa [17]

Answer:

B

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8 0
3 years ago
5th grade Pre algebra. Pls help I’m rlly stuck will give brainliest c:
anzhelika [568]

Step-by-step explanation:

so ,

Question 6 :-

5 × (3+4) - 4

first solve the Bracket ......

5 × (7) - 4

after multiplication ......

35 - 4

= 31

so , Answer is 1st one ....

Question 7 :-

8 + 1/2 × (6-2) -1

so , here also solve the Bracket first .....

8 + 1/2 × (4) - 1

after multiplication .....

8 + 2 - 1

after + and - .......

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4 0
2 years ago
Read 2 more answers
Determine the value of w ​
Tanya [424]

Answer:

suppose

x+122=180

x=180-122

x=58

then

x+w+33=180

58+w+33=180

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w=89

4 0
3 years ago
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