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3 years ago

Escribe el número igaul a 5 decenas y 13 unidades

Mathematics

1 answer:

coldgirl [10]3 years ago

8 0

Answer:

Step-by-step explanation:

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Solve the system substitution y= 4x + 1 and 3x+2y =13

strojnjashka [21]

Given :

${\qquad \sf \dashrightarrow y= 4x + 1 \: –––– \sf \: (i)}$

${\qquad \sf \dashrightarrow 3x + 2y = 13 \: –––– \sf \: (ii)}$

Now, Substituing the value of y in equation (ii) :

${\qquad \sf \dashrightarrow \: 3x + 2y = 13 }$

${\qquad \sf \dashrightarrow \: 3x + 2(4x + 1) = 13 }$

${\qquad \sf \dashrightarrow \: 3x + 8x + 2 = 13 }$

${\qquad \sf \dashrightarrow \: 11x + 2 = 13 }$

${\qquad \sf \dashrightarrow \: 11x = 13 - 2 }$

${\qquad \sf \dashrightarrow \: 11x = 11 }$

${\qquad \sf \dashrightarrow \: x = \dfrac{11}{11} }$

${\qquad \sf \dashrightarrow \bf \: x = 1 }$

Now, substituting the value of x in equation (i) :

${\qquad \sf \dashrightarrow y= 4x + 1}$

${\qquad \sf \dashrightarrow y= 4(1) + 1}$

${\qquad \sf \dashrightarrow y= 4 + 1}$

${\qquad \bf \dashrightarrow y= 5}$

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2 years ago

the sum of three numbers is 63. The first number is twice the second number, and the third number is three times the first numbe

HACTEHA [7]

Answer:

Step-by-step explanation:

2x+x+3(2x)=63

3x+6x=63

9x=63

9x/9=63/9

X=7

2x=14

3(2x)=42

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3 years ago

How to solve this inequality -8×+18>-22

Ksju [112]

Answer:

x < 5

Step-by-step explanation:

Step 1: Solve for x

-8x + 18 > -22

-8x + 18 - 18 > -22 - 18

-8x / -8 > -40 / -8

When dividing by negative, it flips the sign

x < 5

Answer: x < 5

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3 years ago

With regard to the example given in Question 8 above, if everything else stayed

inysia [295]

Answer:

Step-by-step explanation:

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3 years ago

How do u solve y pluse 4 pluse 3(y pluse 2)

lesya [120]

Y + 4 + 3(y+2) first distribute the 3
y + 4 + 3y + 6 then add like terms
4y + 10

therefore your answer should be 4y + 10

3 0

4 years ago

Read 2 more answers

Escribe el número igaul a 5 decenas y 13 unidades​

Escribe el número igaul a 5 decenas y 13 unidades