Question

Evaluate -4(a+b) - 10a/b when a=8 and b=5


Answer:
a. -15
b. 36
c. -53
d. 625/8
e. -68

Answer 1

-68 is ans

Answer 2

\[\Huge{\bf{\color{blue}{Many}\color{red}{Problems!!!}}}\]

Answer 3

will you break it down for me so i can put it in my notes

Answer 4

i dont have problems bro

Answer 5

ok!! sis

Answer 6

\[-4(8+5)-10\times \frac{8}{5}\]

Answer 7

is it your question? @skittles223

Answer 8

hey when an x is in front of the 2 what is the x for

Answer 9

question is right?

Answer 10

-4(8+5)-16(8/5)=0 ,-4(13)-16=0,-52-16=0,-68=0

Answer 11

what is that i dont get that equation where did you get all the numbers from

Answer 12

*16=10 made a mistake

Answer 13

\[-4\times13-2\times8\]
\[-52-16=-68\]

Answer 14

ok @skittles223

Answer 15

right @thivitaa

Answer 16

this is right

Answer 17

thnx.....

Answer 18

okk ..

Answer 19

question is so easy

Answer 20

yaa

Answer 21

is it all the 16 suppose to be 10

Answer 22

?

Answer 23

wht question?

Answer 24

is the 16's all suppose to be 10's

Answer 25

-388/5 this is ans.

Answer 26

to what

Answer 27

the highest they got is 625/8

Answer 28

wht is

Answer 29

are we talking about this question Evaluate -4(a+b) - 10a/b when a=8 and b=5

Answer 30

plz again write the question which r u want and which r u changes in q?

Answer 31

Evaluate -4(a+b) - 10a/b when a=8 and b=5

Answer 32

-4(8+5)-10x8/5=-68

Answer 33

If a 30 foot flagpole casts a12 foot shadow, how tall is a mailbox casting a 18 inch shadow?

Answer 34

will you do it step by step so i know how to do it next time im takin notes

Answer 35

1 feet = 12 inches (pre - known)
18 inches = 1.5 feets.
30 feet = 12 feet shadow
30/12feet = 1 feet shadow
1.5 (30/12) = 1.5 feet shadow
3.75 foots tall mail box.

Answer 36

@nubeer u r a teacher?

Answer 37

nop.. why?

Answer 38

@nubeer like how do you find the answer to that problem though

Answer 39

they dont have 3.75

Answer 40

why don't you convert to inches all the way...
30 ft = 360 inches , 12 ft is 144 inches , 144/360 = .4
18 inches times .4 = 7.2 inches thats how long it would be

Answer 41

360/144 = 2.5 18 x 2.5 =45 inches ..sorry

Answer 42

thanks spectrum i really appreciate it

Answer 43

No problem :)

Answer 44

this is 45 inch tall mailbox

Answer 45

@nubeer i don't at all mean to be disrespectful but you post including the "steps" was kind of confusing to me.

Answer 46

45 inches is 3.75 ft btw everyone..

Answer 47

hmm yes maybe.. it's basically ratio method question . so was just trying to convey how normally the ratio method is done. obviously there are more many ways to solve.. but it's fine as long as its done right.

Answer 48

It takes Karina 3.5 hours to drive from Davenport to Hogsdale and then 2 hours and 10 minutes to drive from Hogsdale to Paqua. On the route that she took, it is 720 miles from Davenport to Paqua. What was her average driving speed for the trip?

Answer 49

Do You Know What Is The Average Speed Formula ?

Answer 50

@skittles223

Answer 51

no srry

Answer 52

?

Answer 53

Average speed = s / t

Answer 54

what is s/t for and what are there numbers

Answer 55

S=720 miles
t=3.5 hrs + 2 hrs + 10 minutes= 5 hours and 40 minutes = 5 2/3 hours = 17/3 hours

S is the distance
t is the total time which we calculated by adding now put it in the formula :)

Answer 56

And Yeah Don't Forget The Unit,You Can Loose Valuable Marks :) Got it ? @skittles223

Answer 57

hba i tried to get the answer and i cant dont know how to do

Answer 58

\[Average Speed = s/t=720/(\frac{ 17 }{ 3 })\]

Answer 59

\[s/t=\frac{720\times3}{ 17 }\]

Answer 60

@skittles223 Understood ? now tell me the answer ?

Answer 61

127.05

Answer 62

You Are Wrong :(

Answer 63

what is it then i cant figure it out im sorry i am so complicated to understand stuff

Answer 64

127.05 miles/hour ( approx) - Answer

Answer 65

I told you not to forget the units :(

Answer 66

You never listen -

Answer 67

what units

Answer 68

Miles/Hour Is The Unit Here -

Answer 69

Miles Is the Unit Of S-Distance and Hour is the unit of t-Time

Answer 70

ok sorry my bad ill work on it

Answer 71

Please try to understand it is important -

Answer 72

Evaluate x3y * x2y2


Answer:
a. x to the sixth, y squared
b. 5x3y
c. 6x2y
d. x to the fifth, y cubed
e. xy

Answer 73

\[ x^3y \times x^2y^2\]

Answer 74

i cant read that hba

Answer 75

Please use magnifier :)

Answer 76

how do i do that

Answer 77

Do you have windows 7 ?

Answer 78

no im on laptop can u just explain to me wat to do please

Answer 79

Windows Is An Operating system in your laptop :(

Answer 80

why cant u just please tell me how to do it

Answer 81

Ok Jus Add The Powers

Answer 82

When Multiplying Just Add the powers :)

Answer 83

like will you type it out for me step by step just dont give me the answer

Answer 84

So What are you going to do then ?

Answer 85

figure out the answer or whats the power to x and y

Answer 86

When Multiplying

\[x^a \times x^b=x ^{a+b}\]

Answer 87

does that say Ia times Ib=Ia+b

Answer 88

No

x^a * x^b = x^{a+b}

Answer 89

and isnt a 2

Answer 90

What Are you trying to say ?

Answer 91

@skittles223 Can you re-post the current question?

Answer 92

http://openstudy.com/study#/updates/509ba21ee4b0a825f21ab639