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Mathematics 19 Online
umerlodhi (umerlodhi):

help please not you're average questions

umerlodhi (umerlodhi):

1. Evaluate x – 3y if x = –4 and y = –6. (Points : 4) 14 –14 22 –22 Question 2.2. Evaluate if x = –14.6 and y = 2.5. –x – |y| (Points : 4) –17.1 –12.1 12.1 17.1 Question 3.3. Provide the missing reason in the following proof. Prove –(–y – x) – x = y Statements Reasons –(–y – x) – x = –[–y +(–x)] – x Definition of subtraction –[–y +(–x)] – x = y + x – x Opposite of a sum property y + x – x = y + x + (–x) Definition of subtraction y + x + (–x) = y + [x + (–x)] Associative Property of Addition y + [x + (–x)] = y + 0 Additive Inverse Property y + 0 = y ________________________ (Points : 4) Symmetric Property Additive Inverse Property Additive Identity Property Opposite of a Sum Property Question 4.4. Simplify. 15 – (–3) – 4 (Points : 4) –16 –8 14 22 Question 5.5. Simplify. –10 • 2 ÷ (–4) + 8 • 5 (Points : 4) 25 35 45 65 Question 6.6. Simplify. (Points : 4) 81 9 –9 –81 Question 7.7. Simplify. –9 – 5x + 3 – 2x (Points : 4) –12 – 3x –12 – 7x –6 – 3x –6 – 7x Question 8.8. Evaluate if x = 13 and y = –4. 3(2x – y) (Points : 4) –63 –15 82 90 Question 9.9. Evaluate if x = 2 and y = –4. 2x ÷ y (Points : 4) –8 –1 8 1 Question 10.10. Find the reciprocal. 10b.gif (Points : 4)

umerlodhi (umerlodhi):

if a question isent there skip it please

umerlodhi (umerlodhi):

question 6. \[27 \div 1/3\]

OpenStudy (abdullah1995):

for question 1 replace the x values in the x and and same for y and solve it

OpenStudy (arabpride):

Please understand that OpenStudy is not a site for answers but for helping you study.... consider reading the CoC and TaC before posting a question ~Thank You :3

OpenStudy (arabpride):

day the same thing x'DD ye' ok..

OpenStudy (abdullah1995):

i am sorry @umerlodhi but giving answers is not what this site is meant for ..

OpenStudy (arabpride):

lolz ik how to solve these easily.. but you seem to lack cooperation... Good Luck cx

OpenStudy (abdullah1995):

with that attitude no one is going to help you.

OpenStudy (anonymous):

what questions do you still need help with?

OpenStudy (anonymous):

post one at a time and tag me, and I'll see if I can help you. :)

umerlodhi (umerlodhi):

all of them @grunge101

umerlodhi (umerlodhi):

@TheSmartOne

OpenStudy (anonymous):

ok so starting with the first one. I'm not going to just give you the answers, you're gonna work them out with me.

umerlodhi (umerlodhi):

i just wan't answer's pleeeeeeeeeeease

OpenStudy (anonymous):

nope.

OpenStudy (anonymous):

so 1. x - 3y; x = -4 and y = -6

OpenStudy (anonymous):

substitute the x with -4 and the y with -6

OpenStudy (anonymous):

so -4 - 3y(-6) put that in a calculator

TheSmartOne (thesmartone):

^^ It should be -4-3(-6)=-4+18=??

umerlodhi (umerlodhi):

-7?

TheSmartOne (thesmartone):

No it should be 14...

TheSmartOne (thesmartone):

Plus -7 is not an answer choice..

umerlodhi (umerlodhi):

so 14 right

TheSmartOne (thesmartone):

yes...

OpenStudy (anonymous):

i didnt solve it

umerlodhi (umerlodhi):

okay wb the rest

TheSmartOne (thesmartone):

2) What is 14.6-2.5=??

OpenStudy (anonymous):

i'm just telling you what to put in the calculator

umerlodhi (umerlodhi):

12.1

TheSmartOne (thesmartone):

It should be 12.1

TheSmartOne (thesmartone):

Exactly...

umerlodhi (umerlodhi):

thank @TheSmartOne your the best can we keep going

TheSmartOne (thesmartone):

not sure about 3...

umerlodhi (umerlodhi):

what do you think it is grunge101

OpenStudy (anonymous):

i have no idea

OpenStudy (anonymous):

just either copy and paste it and dearch google, but if you don't find anything just choose a random answer

umerlodhi (umerlodhi):

lets skip it

umerlodhi (umerlodhi):

keep going to 4 huh?

OpenStudy (anonymous):

4. put 15 - (-3) - 4 in a calculator

TheSmartOne (thesmartone):

What is 15+3-4

umerlodhi (umerlodhi):

15

OpenStudy (anonymous):

yeah that's how you do it

TheSmartOne (thesmartone):

5)(-10x2)/-4+ (8x5)

umerlodhi (umerlodhi):

14

TheSmartOne (thesmartone):

Correct...

OpenStudy (anonymous):

5. 20 / -4 + 40

TheSmartOne (thesmartone):

#5 should be 45..

TheSmartOne (thesmartone):

#6 has no question...

OpenStudy (anonymous):

dont just give the answers @TheSmartOne

umerlodhi (umerlodhi):

question 6. 27÷1/3

TheSmartOne (thesmartone):

I know kind of realized after i gave it..

TheSmartOne (thesmartone):

What is 27x3=?

umerlodhi (umerlodhi):

81

TheSmartOne (thesmartone):

That will be your answer..

umerlodhi (umerlodhi):

cool

OpenStudy (anonymous):

7. -9 -5x + 3 - 2x

OpenStudy (anonymous):

so -5x - 2x

umerlodhi (umerlodhi):

x = ?

OpenStudy (anonymous):

you're solving like terms

umerlodhi (umerlodhi):

is it -7

OpenStudy (anonymous):

x doesn't have a value

umerlodhi (umerlodhi):

oh

OpenStudy (anonymous):

but it would be 17x

OpenStudy (anonymous):

then -9 +3

OpenStudy (anonymous):

-6

umerlodhi (umerlodhi):

nrgative six

OpenStudy (anonymous):

the last answer :)

umerlodhi (umerlodhi):

'neg'

umerlodhi (umerlodhi):

D

OpenStudy (anonymous):

8. 3 times (2 times 13 - -4)

OpenStudy (anonymous):

so solve the parentheses first

OpenStudy (anonymous):

2 x 13 = 26

OpenStudy (anonymous):

add 4 bc subtracting -4 is the same thing

OpenStudy (anonymous):

so the inside is 30 then multiply it by 3

umerlodhi (umerlodhi):

can u give the answer for this one

umerlodhi (umerlodhi):

90

OpenStudy (anonymous):

yes 90. so D. do you understand so far?

umerlodhi (umerlodhi):

is 90 the answer

umerlodhi (umerlodhi):

yes i do

OpenStudy (anonymous):

ok cool.

OpenStudy (anonymous):

so 9. 2 x 2 / -4

umerlodhi (umerlodhi):

Question 9.9. Evaluate if x = 2 and y = –4. 2x ÷ y (Points : 4) –8 –1 8 1

OpenStudy (anonymous):

4 / -4

OpenStudy (anonymous):

so -1

umerlodhi (umerlodhi):

i was gonna say 0

OpenStudy (anonymous):

lol good thing im helping you

umerlodhi (umerlodhi):

i like that i understand what im doing thank you

umerlodhi (umerlodhi):

lol

OpenStudy (anonymous):

aw that's so good. no problem. equations are like the only math i like and am like an expert on

umerlodhi (umerlodhi):

lol lets do this im pumped

OpenStudy (anonymous):

lmao last question

OpenStudy (anonymous):

what is 10b.gif

umerlodhi (umerlodhi):

its a link forget it thnx for the help

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