John's dog slept for 3 hours. If the dog slept 1/3 of every hour, how many times did he snore?

Answers

Answer 1

Answer: Then he slept 9 times. Because every hour is 60 minutes, since 1/3 of an hour is 20 mins, it should be 3 times per hour. So using basic math, 3 times 3 equals 9

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Translate into an expression:Two more than a number x squared.
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What is the unit rate: $1.12 for 8.2 ounces

If 3 pieces of candy cost $2.10,how much would four pieces cost?

Answers

We need to find the unit rate

2.10/3 = 0.70

0.70*4 = 2.80

Answer: 4 pieces would cost $2.80

210 divided by 3 equals 70

210+70= 280

$2.80

When using elimination to solve 2x-3y = 4 7x+ 6y = -1 what would be a possible ﬁrst step? A 4x – 6y = 8 7x + 6y = -l B x = 3/2y + 2 7x + 6y = -1 C 2x -3y = 4 x = -6/7y – 1/7 D y = 2/3x – 4/3 7x + 6y = -1

Answers

A because you have to multiply the problems to even in out
(2x-3y=4) x2
(7x+6y=-1) x1

4x – 6y = 8
7x + 6y = -l

help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

so thi sis really simple since you have an equal sign so

(n/3)-(5n/6)=1/3
to subtract fractions, make the bottom number the same
n/3 times 2/2=2n/6
(2n/6)-(5n/6) or (2n-5n)/6 so
-3n/6=1/3
multiply both sides by 6
-3n=6/3=2
-3n=2
divide both sides by 3
-n=2/3
mmultiply boht by -1
n=-2/3
tada
n=-2/3

$\frac { n }{ 3 } -\frac { 5n }{ 6 } =\frac { 1 }{ 3 } \n \n n\left( \frac { 1 }{ 3 } -\frac { 5 }{ 6 } \right) =\frac { 1 }{ 3 } \n \n n\left( \frac { 2 }{ 6 } -\frac { 5 }{ 6 } \right) =\frac { 1 }{ 3 }$

$\n \n -\frac { 3 }{ 6 } n=\frac { 1 }{ 3 } \n \n -\frac { 1 }{ 2 } n=\frac { 1 }{ 3 } \n \n \frac { 1 }{ 2 } n=-\frac { 1 }{ 3 } \n \n 2\cdot \frac { 1 }{ 2 } n=-\frac { 1 }{ 3 } \cdot 2\n \n n=-\frac { 2 }{ 3 }$

A building with a height of 32 m casts a shadow that is 20 m long. A person standing next to the building casts a shadow that is 1.2 m long. How tall is the person?

Answers

Answer:

Building's actual height 32 meters

Building's shadow height 20 meters

Person's shadow height 1.2 meters

Person's actual height = ?

Find the person's actual height:

This is a proportion problem.

Actual height to shadow height

Building = Person

32 : 20 = x : 1.2

32 * 1.2 = 20 * x

38.4 = 20x

38.4/20 = 20x/20

1.92 = x

The person's actual height is 1.92 meters long.

32 : 20 = 1.92 : 1.2

32/20 = 1.60

1.92/1.2 = 1.60

Step-by-step explanation:

Find the equation of the axis of symmetry for the parabola y=x^2-2x

Answers

Answer:

Step-by-step explanation:

y=x^2-2x

Find the vertex of the parabola (Using graphing form)

(x-1)^2-1

Vertex= (1,-1)

Line of symmetry: (-1,0)

Answer:

x=1

Step-by-step explanation:

Axis of symmetry is the straight line down the middle of the parabola. X-int. are at x=0 and x=2. 2-0/2=1.

Which numbers are solutions to the inequality x < −2, using the replacement set {−5, −2.6, −2, −1.5, −0.8, 1}?Choose all answers that are correct.

A.

−0.8

B.

−1.5

C.

−2.6

D.

−5

Answers

x < -2

Just find the numbers that are less than -2.

-5, -2.6, -2, -1.5, -0.8, 1

With negative numbers, the numbers that seem 'bigger' than them are actually smaller.

So '-5' and '-2.6' are the only one's that are less than -2.

-0.8,-1.5,+1>-2And -2=-2But -5,-2,6<-2 $\framebox[1.1\width]{Good luck!} \par$

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