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Ad libitum [116K]
3 years ago
5

Substitutions y=x+4 y=3x+0

Mathematics
2 answers:
nordsb [41]3 years ago
7 0

Answer:

x= 2

y = 6

Step-by-step explanation:

to solve this system of equation using substitution method,

let

y=x+4............................................................. equation 1

y=3x+0............................................................. equation 1

substitute equation1 into equation 2

we have,

x + 4 = 3x + 0

combine the like terms

4-0 = 3x -x

4 = 2x

divide both sides by the coefficient of x which is 2

4/2 = 2x/2

x = 2

put x = 2 in equation 1

y=x+4............................................................. equation 1

y = 2 + 4

y = 6

therefore the value of x and y are 2 and 6 respectively

cluponka [151]3 years ago
4 0

Answer:

x = 2

Step-by-step explanation:

since both equal y, you can set them equal to each other

x + 4 = 3x + 0

subtract x on both sides

4 = 2x

divide by 2 on both sides

2 = x

♡♡ hope this helped ♡♡

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Zarrin [17]

Answer:

your answer is 3

Step-by-step explanation:

36 divide by 3 = 12 and 12 divide by 2 = 6 and 6 divide by 2 = 3

4 0
3 years ago
How do u solve (2d-5)/2 = (5d+2)/9
Rzqust [24]

Answer:

D=  49/8

Step-by-step explanation:

Cross-multiply.

(2d-5)/2 = (5d+2)/9

(2d−5)*(9)=(5d+2)*(2)

18d−45=10d+4

Subtract 10d from both sides.

18d−45−10d=10d+4−10d

8d−45=4

Add 45 to both sides.

8d−45+45=4+45

8d=49

Divide both sides by 8.

d=  49/8

So the answer is 49/8

I hope it's right!

8 0
3 years ago
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mylen [45]
0.25+5x is the expression
8 0
3 years ago
Find the simple interest and the total amount after three years.
Ahat [919]

Answer:

A = $ 14,596.99

A = P + I where

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Step-by-step explanation:

5 0
4 years ago
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wariber [46]

Answer:

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Step-by-step explanation:

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Area of rectangle A = 105 square meters

Area of rectangle B = 8.4 square meters

Area of the overlap = \frac{3}{25}\times (\text{Area of rectangle A})

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Therefore, area of the gym floor is 100.8 square meters.  

4 0
3 years ago
Read 2 more answers
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