2 years ago

At which step did Nikita make an error, if at all?

Mathematics

1 answer:

Orlov [11]2 years ago

3 0

in step 2 she made an error

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Please help!!!!!

fgiga [73]

Answer:

512/16= 32 miles per gallon
117.50/50= 2.35 per pound
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2 years ago

A store offers a 30% discount on a coat that originally sold for $120. The coat still does not sell, so the store offers another

Romashka [77]

Answer:

Step-by-step explanation:

120 *.3 = 36

120-36 = 84

84*.3 = 25.2

84-25.2= 59.8

120*.6 = 72

120-72 = 48

59.8-48 = 10.8 C

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2 years ago

What is the x-coordinate of ( 5,6 )<br> please answer me

Alexeev081 [22]

5 would be your x coordinate because remember coordinates are written in (x,y)

3 0

2 years ago

What is 5 (3-4x) = 7- (4-x)

a_sh-v [17]

Answer: x=4/7

Step-by-step explanation:

15-20x=x+3

15-20x-15=x+3-15

-20=x-12

-20x-x=x-12-x

-21x=-12

-21x/-21=-12/-21

x=4/7

6 0

2 years ago

PLEASE HELP!!! I NEED THE ANSWER SOON :)

densk [106]

$y=2x \newline y= x^{2} -3$

Substitue 2x for y in the second equation:

$2x= x^{2} -3$

Rearrange to $a x^{2} +bx+c=0$ form:

$x^{2} -2x-3=0$

Factor:

$(x-3)(x+1)=0$

Zeros are $x=3$ and $x=-1$

To find y-coordinates of pts of intersection, plug these x-values into first equation to get $y=-2$ and $y=6$

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2 years ago