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3 years ago

Is (3,8) a solution of the system?

Mathematics

2 answers:

Crank3 years ago

7 0

Answer:

False

Step-by-step explanation:

Substitute the point into each equation and see if it gives a true statement

y = -5x+1

8 = -5(3) +1

8 = -15+1

8 = -14

False so this is not a solution

We do not need to check the second equation since the first is false

zubka84 [21]3 years ago

3 0

Answer:

Step-by-step explanation:

8= -5(3)+1 is not a true statement because it equals -14 not 8

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Whats 4(d+2)-2d=3(2+d)

Dmitry [639]

Simplify:

$4(d + 2) - 2d = 3(2 + d)\\4d + 8 - 2d = 6 + 3d\\d + 8 - 2d = 6\\-d + 8 = 6\\-d = -2\\d = 2$

d is equal to 2.

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3 years ago

Y=x +1. what is y and x and then the (x, y) thing and the slope and the y intercept

nadezda [96]

Answer:

Your answer is

From the equation : y=x+1

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2 years ago

1.5c - 6 = 7.5 i need help with this problem and i have no one to help me

Lostsunrise [7]

Answer:

c=9

Step-by-step explanation:

Let's solve your equation step by step:

add 6 on both sides
divide 1.5 from the product of 6 and 7.5 (aka 13.5)
you will get C
put 9 in for C.

1. $1.5c-6+6=7.5+6$

1.5 $1.5c=13.5$

2. $\frac{1.5c}{1.5c}=\frac{13.5}{1.5c}$

3. C=9

1.5(9)-6=7.5

13.5-6=7.5

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2 years ago

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Answer:

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Step-by-step explanation:

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1 year ago

Solve the equation<br> 2 x 1 1/2 = 46

AleksAgata [21]

Answer:

Step-by-step explanation:

I would hAve say 2x23 which would have = to 46 that's what I got not sure if I'm correct

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2 years ago