At the beginning of the 7th grade, Martin was 50 inches tall. At the beginning of his 8th grade year, Martin was 58 inches tall. What was his percent of change from his 7th grade year to his 8th grade year? (sorry I forgot to add the answer choices) Anyways here they are-
A-13%
B- 14%
C- 16%
D- 18%

Answer:

Step-by-step explanation:

if you look at the graph 0-3 is positive

so that gives us 3+

3-2(you count 3 to -2 is negative since it goes left

so that gives us 3+(-5)

thks

Answer:

the freak

Step-by-step explanation:

9514 1404 393

Answer:

  (a), (b), (c) are non-proportional

  (d) is proportional

Step-by-step explanation:

An equation or graph with a non-zero y-intercept is non-proportional. That is true for (a), (b), (c).

The table of (d) is proportional, with a constant of proportionality of 6.5.

__

Comment on (c)

In a proportional relation, price would go up with quantity, not down. If the prices both end in 9, one cannot be double the other, as would be required for the price of a gallon to be proportional to the price of a half-gallon.

Step-by-step explanation:

8^2+√34^2

64+1156

1227

√1227

35.02

Answer:

the answer its 15 I hope helps you

Step-by-step explanation:

Answer:

Growth rate is -0.25

Growth factor is 0.75

Step-by-step explanation:

The general form of an exponential equation is;

y = a(1 + r)^x

Where a is the initial value

r is the growth rate

For x = 3; we have

168.75 = 400(1 + r)^3 •••• (i)

For x = 2, we have

225 = 400(1 + r)^2 •••••(ii)

Divide i by ii

That will be;

168.75/225 = 1 + r

1 + r = 0.75

r = 0.75-1

r = -0.25

The growth rate is -0.25

The growth factor is 1-0.25 = 0.75

Answer:

24

Step-by-step explanation:

Answer:

7.83 repeating

Step-by-step explanation:

Cal’s

Answer:

The answer is 0.5 and the Mixed Fraction is 1/2

Step-by-step explanation:

Answer:

3 1/8

Step-by-step explanation:

im only answering this late incase if someone else is looking for the right answer

Answer: 9(9)+ 5 = 86

Step-by-step explanation: the x equals 9 so means 9(9) + 5 = 86

Answer:

x = 9

Step-by-step explanation:

9x + 5 = 86, minus 5 of both sides

9x = 81, divide 9 on both sides

x = 9

Answer:

c or d

Step-by-step explanation:

Answer:

trapezoid

Step-by-step explanation:

Answer:

I think it's C.

Step-by-step explanation:

The Correct and Right Answer Is C

Answer:

2x=6

Step-by-step explanation:

Answer:

x = -2

Step-by-step explanation:

Simplifying

2x + -5x = 3x + 12

Combine like terms: 2x + -5x = -3x

-3x = 3x + 12

Reorder the terms:

-3x = 12 + 3x

Solving

-3x = 12 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

-3x + -3x = 12 + 3x + -3x

Combine like terms: -3x + -3x = -6x

-6x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0

-6x = 12 + 0

-6x = 12

Divide each side by '-6'.

x = -2

Simplifying

x = -2

Answer:

40

Step-by-step explanation:

Add all the sides together which is 40

Answer:35

Step-by-step explanation:

Answer:

[tex]x = bc + 2b[/tex]

PLEASE MARK ME AS BRAINLIEST

Answer:

i didthe math, its c

Answer:

-1.6

Step-by-step explanation:

4 + 10x = -12

10x = -12 -4

x= -1.6

Answer: 50 feet

Step-by-step explanation: it went 40 feet to get to the surface of the water then it went and extra 10 feet above water so 40+10=50

Answer:

4 games

Step-by-step explanation:

Let the number of games rented from both be represented by: g

For Games - R - Us

Games-R-Us offers a video game rental program with a monthly fee of $10 plus $2 per game rental.

$10 + $2 × g

= 10 + 2g

For Games2Go

Games2Go charges a $2 monthly fee plus $4 per game.

$2 + $4 × g

= 2 + 4g

Hence,

Games-R-Us = Games2Go

10 + 2g = 2 + 4g

Collect like terms

10 - 2 = 4g - 2g

8 = 2g

g = 8/2

g = 4 games

Therefore, number of games you would have to rent from each company to have your total cost be the same amount is 4 games

Answer:

2x + y = 15

Step-by-step explanation:

Total amount with Manuel = $15

Cost of apps = $2

Cost of song = $1

x = number of apps purchased

y = number of songs purchased

Cost of apps × number of apps purchased + Cost of song × number of songs purchased = Total amount with Manuel

2*x + 1*y = 15

2x + y = 15

The linear equation that represents the combination of apps and songs manuel can purchase is 2x + y = 15

Answer:

- high tide occurs at 12 noon and 12 midnight

- Low tide occurs at 6 a.m and 6 p.m

- maximum depth value = 20 ft

- Minimum depth value = 15 ft

Step-by-step explanation:

The depth is modelled as;

y = 20 + 5 cos (πt/6)

We are told that t = 0 represents 12:00 midnight.

This is high tide because at t = 0, the cos function will be at it's maximum value of 1 since cos 0 = 1.

Max depth value is;

y = 20 + 5(0)

y = 20 ft

Minimum depth value will be the low tide and it will be when the cos function is equal to -1.

Thus;

y = 20 + 5(-1)

y = 15 ft

Since t represents number of hours and since at 12 midnight, t = 0, thus; high tide will occur again at;

12 noon

Also, let's check for low tide.

Let's try t = 6 which means 6 a.m

Thus;

y = 20 + 5 cos (π(6)/6)

y = 20 + 5 cos π

Cos π has a value of -1

Thus;

y = 20 + 5(-1)

y = 20 - 5

y = 15 ft

Thus;

Low tide occurs at 6 a.m and 6 p.m

[tex]\left \{ {{- \atop {2(21.5-2y)+2y=30}} \right.[/tex]Answer:

Step-by-step explanation:

a)

x= gourmet pretzels

y= boxes of strawberries

system will be:

[tex]\left \{ {{2x+4y=43 \atop {2x+2y=30}} \right.[/tex]

b)

[tex]\left \{ {{2x+4y=43 \atop {2x+2y=30}} \right.[/tex] [tex]\left \{ {{x=21.5-2y \atop {2x+2y=30}} \right.[/tex][tex]\left \{ {{- \atop {2(21.5-2y)+2y=30}} \right.[/tex][tex]\left \{ {{- \atop {43-4y+2y=30}} \right.[/tex][tex]\left \{ {{- \atop {-4y+2y=30-43}} \right.[/tex][tex]\left \{ {{- \atop {-2y=-13}} \right.[/tex][tex]\left \{ {{- \atop {y=\frac{13}{2} }} \right.[/tex][tex]\left \{ {x=21.5-2(6.5)}} \atop {y=6.5}} \right.[/tex][tex]\left \{ {{x=8.5} \atop {y=6.5}} \right.[/tex]

a box of strawberries is 6.5

Answer:

Step-by-step explanation:

63

1/7x-5=4

1/7x=9

X=63