MATHEMATICS MIDDLE SCHOOL

ANSWER FAST PLZZZZZZZZZ​
ANSWER FAST PLZZZZZZZZZ​ - 1

Answers

Answer 1
Answer:

Answer:

x = 20

Step-by-step explanation:

Turn all the numbers into fractions with the same denominator.

6.75 = (46)/(8)

13(1)/(4) = (53)/(4) × (2)/(2)  = (106)/(8)

(46)/(8) + (3)/(8)x = (106)/(8)

Subtract 6.75 from both sides

(3)/(8)x = (60)/(8)

Then multiply both sides by 8

3x = 60

Then divide both sides by 3 to get x

(3x)/(3) = (60)/(3)
Answer 2
Answer: Here you go!!! Hope this helps!!!

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What is two thirds minus six thirds

Answers

2/3 - 6/3 = -4/3 or -1 1/3 (negative one and one third)
0/0 because two thirds are lower then sixth rids unless u switch it then it would be 3/1

Please help with hold page extra points given

Answers

2. 300 mph or nautical miles or Knots
3. 77 miles
4. 150 minutes 
5. 270 miles
6. 20 yd per min.
7. 1200 miles
8. 14 ft. per min.
9. 2 hours.
10. 3 hours max. (unless u count traffic)
11. No, it will take 3 hours and 30 minutes.
easy, if you use your head and a shortcut

d=rt
d/r=t
d/t=r
basically if given 2 of the, you can find the rest with
d=rt
t=d/r
r=d/t


2. speed=r
d=3600m
t=12
r=d/t
r=3600m/12m
r=300m/min
rate=300m per minute


3.  the time is 7 hours
speed =11mph=r
d=rt
d=7h times 11mph
d=77miles



4. given
d=300cm
r=2cmpermin
t=d/r
t=300cm/2cmpermin
t=150min


5. r=45mph
t=6h
d=rt
d=45mph times 6h
d=270miles


6. d=400yd
t=20min
r=d/t
r=400yd/20min
r=20yd/min
r=20yards per minute


7. r=120mph
t=10h
d=rt
d=120mph times 10h
d=1200miles

8. d=700ft
t=50min
r=d/t
r=700ft/50min
r=14ft/min
r=14 feet per minute


9. d==1200mi
r=600mph
t=d/r
t=1200mi/600mph
t=2h
t=2 hours


10. speed limit is 65mph=r
d=195miles
t=?
t=d/r
t=195mi/65mph
t=3 hours

11. 2 ways
1. find how far it travels in 4 hours
2. find how long it will take
both easy, I willl do first

in 4 hours
d=rt
d=4h times 65mph
d=260 miles
260mi>230mi
yes

What is the solution to the equation 8-2b= -2/3(12b+6) ?

b =??????????????

Answers

ok so remember you can do anything to an equaiton as long as you do it to both sides

-8-2b=-2/3(12b+6)
distribute so we can work with innter terms
a(b+c)=ab+ac
-2/3(12b+6)=-24b/3-12/3=-8b-4

we now have
8-2b=-8b-4
get all b's on one side
add 8b to both sides
8+8b-2b=8b-8b-4
8+6b=0-4
8+6b=-4
subtract 8 fro both sides
8-8+6b=-4-8
0+6b=-12
6b=-12
divide both sides by 6
6/6b=-12/6
1b=-2
b=-2



b=-2
So the answer would be b=-2. The steps of this is you would refine -2/3 (12b+6) to -4(2b+1) so then the equation would turn into 8-2b= -4 (2b+1). Then you would expand -4(2b+1) into -8b+4. So now the equation is 8-2b=-8b-4. Then you'd subtract 8 from both sides: 8-2b-8=-8b-4-8 which is -2b=-8b-12. Then you'd add 8b to each side. -2b+8b=-8b-12+8b that equals 6b=-12. Then you divide both sides by 6: 6b/6=-12/6. Then you get b= -2. Hope this helped. 

Sin and cos
sin Y= ___ in fraction form if you can explain it that would be very helpful

Answers

Check the picture below.

Which of the following facts would be sufficient toprove AACE - ABCD?
erior
180.
ABCD is a right triangle.
G AB = ED
Hm A = MZE
AE | BD
to​

Answers

Answer:

aace

Step-by-step explanation: 344-531=aace

Answer: aace

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How is volume similar and different to mass?

Answers

Mass is the measure of the amount of matter an object has. Volume is the amount of space an object occupies.
The reason how they are similar is because you are looking for the in side of that shape. And the difference is because in volume you were looking to see how many cube can fit in the shape and the mass is to see how much it weighs
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