Question

1. Mike want to build a rectangular garden box with a total area of 250 square feet. If the
length is 25 feet what must be the width?

Answer 1

@TheSmartOne--@mathmath333-- would you guys please help me??

Answer 2

@mathmath333

Answer 3

Phi you left..and i need help

Answer 4

The answer is ten. because 10 * 25 is 250

Answer 5

I need to know the last sentances answer

Answer 6

did you not follow ?

first write down the formula for area of a rectangle, like this:
width * length = area

then replace the length with 25 and the area with 250 (you get those numbers from the problem) , like this:
25 W = 250

then divide both sides by 25 to get
W= 10

Answer 7

Ok thanksyou--I have 2 more questions

Answer 8

Go ahead

Answer 9

a)Write an equation that shows the relation between the relation of the numbers using
w as the variable for width.

Answer 10

we already did that. start with the formula for area of a rectangle
L*W = A
then replace the letters with numbers (for the ones we know)
we know L is 25 and A is 250, so we write
25W= 250
that is what they want

Answer 11

oops sorry . didn't mean to puit that

Answer 12

Write an equation for any rectangle using a for area, l for length and w for width

Answer 13

@phi--you keep leaving

Answer 14

Oh wait not that q

Answer 15

d) solve for length in a garden box where the area is 100 square feet and the width is
12.5 feet

Answer 16

@phi-@phi-@phi

Answer 17

This isn't that hard

Answer 18

can you do the same thing:
write down the formula for the area of a rectangle
then put in the numbers.
can you do that ?

Answer 19

L*W=A

L*12.5=100 sqft

Answer 20

now divide both sides by 12.5

Answer 21

can you do that ?

Answer 22

L/12.5*12.5/12.5=100

Answer 23

you divide each side by 12.5
you start with
12.5L = 100
then write a line under each side, and write 12.5
like this
\[ \frac{12.5L}{12.5} = \frac{100}{12.5} \]

Answer 24

next, simplify the 12.5/12.5
and simplify 100/12.5
use a calculator

Answer 25

Is that the answer

Answer 26

after you simplify , you get the answer

Answer 27

ok

Answer 28

while i do that can you right out this one

Answer 29

2. In physics, we use the equation s= d/t to show the speed of an object. This equations means
that the speed of an object is equal to distance it moved divided by the time it moved. If a car
was going 65 miles per hour and went 910 miles; how long was it driving?

Answer 30

for question 2.
write down the formula (that they give you)
put in the numbers for the letters
can you do that ?

Answer 31

Hangon

Answer 32

S=d/t

910=65/t??

Answer 33

@phi

Answer 34

@phi

Answer 35

yes, that looks good.

910 = 65/t

to find "t" we multiply both sides by t
can you do that ?

Answer 36

you do this
\[ 910 t = \frac{65t}{t} \]

Answer 37

Is that the answer

Answer 38

on the right side you have a t/t and that is 1
because anything divided by itself is 1
you get
\[ 910 t = 65\]
do you know what to do next ?

Answer 39

No

Answer 40

@phi

Answer 41

No I don't

Answer 42

Wait.... you divide both sides by 65??

Answer 43

@phi are you there

Answer 44

let's start over
s= d/t

s is short for speed and speed is 65
d is short for distance and distance is 910

65= 910/t

now multiply both sides by t
you get
65 t = 910

now divide both sides by 65
t= 910/65

Answer 45

ok thanks---one more question

Answer 46

Last one!!!

3. Misha wants to know how many pepperonis to put on his pizza. He was told that he should
use 1 pepperoni rounded to the nearest whole pepperoni for each .75 inches of diameter in a
pizza. Show an equation that would solve how many pepperonis he would need if his pizza has
a 8 inch radius.

Answer 47

@phi--last one!!

Answer 48

@mathmath333 - can you help me with bthis last q

Answer 49

@Preetha

Answer 50

Would you help with the last question