MATHEMATICS MIDDLE SCHOOL

7 3/4 = x/8
A. 1/4
B.62
C.1/62
D.4

Answers

Answer 1
Answer:

Answer:

The answer for 7 3/4 = x/8 is B. 62

Hope this helps and have a great day!
Answer 2
Answer: It is B.62 is the answer

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PLEASE PLEASE PLEASE HELP!!!!

Answers

the answer is the fourth one
the answer is 1/2, the last one 

Draw a line with the given slope through the given point.

(-4,1) slope=3/5

Answers

I can't put. Graph out but I can give you points. Since it says 3/5 you must go up three and over five(my teacher likes to call it the rise/run method). So here are the points

(1,4)

(6,7)

And the point you already gave, (-4,1). Hope this helped!

What is the volume of a cube with 1/3 inch sides

Answers

cube is a shape with all sides equal

where length - 1/3 inches

width - 1/3 inches

height - 1/3 inches

the formula to find volume is as follows

volume = (1)/(3) *(1)/(3) * (1)/(3)

numerators should be multiplied by numerators and denominators by denominators

volume = (1*1*1)/(3*3*3) = (1)/(27)

volume of the cube is 1/27 in.³
The formula for cube volume is s^3=volume
1/3*1/3*1/3=1/27

What is the greatest perimeter of a rectangle With an área of 39 square feet

Answers

There is no greatest perimeter.

The shortest perimeter for a fixed area is when you use
the area to make a circle.

The next shortest perimeter for a fixed area is when you
use the area to make a square.

But the longer and skinnier you make it, the longer the perimeter
becomes, without any limit.

Examples:

circle, radius = 3.523 . . area = 39 . perimeter = 22.14
√39  by  √39 . . . . . area = 39 . . . . . perimeter = 24.98
6  by  6.5  . . . . . . . area = 39 . . . . . perimeter = 25

5  by  7.8 .. . . . . . . area = 39 . . . . . perimeter = 25.6
4  by  9.75 . .. . . . . area = 39 . . . . . perimeter = 27.5
3  by  13 . . . . . . . . area = 39 . . . . . perimeter = 32

2  by  19.5 . .. . . . . area = 39 . . . . . perimeter = 43
1  by  39 . . . . . . . . area = 39 . . . . . perimeter = 80
0.1  by  390 . . . . . area = 39 . . . . . perimeter = 780.2

0.01  by  3,900 . . area = 39 . . . . . perimeter = 7,800.02
x=lentht
y=width
area=xy

xy=39  ⇒x=39/y

Perimeter of a rectangle=2x+2y

P(x,y)=2x+2y
P(y)=2(39/y)+2y
P(y)=78/y+2y
P(y)=(78+2y²)/y

Therefore ;P(y) will be gratest if  y⇒0

We calculate the next limit.

lim y⇒0  (78+2y²)/y=lim y⇒0  (78/y+2y)=∞

For exmple:
y=0.1 ft
then;; x=39/ 0.1=390 ft

P(2*390 ft+2*0.1 ft)=780.2

y=0.001 ft
Then; x=39/0.001=39000 ft

P(2*39000 ft+0.001 ft)=78000,002 ft.


Answer: the greatest perimeter of a rectangle with an area of 39 ft²⇒∞

jamal earned $5.00 walking his neighbor's dog for one week. he was given a 1/5 of the $5.00 at the beginning of the week and 1/5 in the middle of the week. how much of the $5.00 was jamal given at the end of the week? express your answer as a fraction and as a dollar amount.

Answers

(1)/(5)+(1)/(5)=(2)/(5)\n\n1-(2)/(5)=(3)/(5)-\ fraction\ of\ money\ at\ the\ end\ of\ rhe\ week\n\n(3)/(5)\cdot5=3-\ amount\ of\ money\ at\ the\ end\ of\ the\ week

A line contains (4,2) and (0,1) what is the equation of the line

Answers

First we need to find the slope of the line.

Slope = (y_2-y_1)/(x_2-x_1) = (2 - 1)/(4-0) = (1)/(4)

Our equation of the line will be in the form of y = mx + b, where m is the slope and b is the y-intercept.

We have found the slope. All we need to find is the y-intercept. Luckily, they gave us the y-intercept!

The y-intercept can be found when x = 0. And one point they gave us is (0,1). That means the y-intercept is 1.

The equation of the line is 

y = (1)/(4)x + 1
When you need the equation of a line, you need to find the slope (m) and the y-intercept (b). the slope is fairly easy to find, we simply find the second y- the first y divided by the difference of the second x and the first x. this will look like
(1-2)/(0-4)= 1/4. that is our slope. next we need to find the y-intercept, that is when x=0. for this problem we are actually given it with the second point (0,1) that means our y-intercept is 1. now we have the everything we need for the equation y=mx+b. we know that m=1/4 and b=1, so we can plug that in and get y=1/4x+1
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