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Leno4ka [110]
2 years ago
8

3/8 = r + 2/3 what is R

Mathematics
2 answers:
larisa86 [58]2 years ago
6 0
The answer is -7/24 I believe
Kruka [31]2 years ago
5 0
-7/24, because you can just do this question in reverse to figure out an answer. (3/8 - 2/3)
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For the function, f(x) =1/4 x - 2, find x if f(x) = -1.
Margaret [11]

Answer:

x=4

Step-by-step explanation:

f(x) =1/4 x - 2 when f(x) = -1.

-1=1/4x-2

-1+2=1/4 x

1×4=x

x=4

4 0
2 years ago
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I will give brainlist if you answer all these questions please! I promise I will :))
lawyer [7]
2. C
3. C
4. C

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4 0
3 years ago
Crafter’s Warehouse sells 5 yards of solid color fleece for $8.58. They sell 16 feet of patterned fleece for $11.00. Which fleec
scoundrel [369]

Answer:

6 yards = 18 feet

16.49/18=$0.92 per fleece

15.40/16=$0.96 per fleece

Crafter's warehouse is better the price is less per feet of fleece

Step-by-step explanation:

3 0
2 years ago
!!!! PLEASE HELP!!!!!!
Nady [450]
I’m guessing C
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3 0
3 years ago
Can someone please help me.
Art [367]

I will give you everything I can do:

11)

Lets say Car A travels at x mph. That means Car B travels at x+2 mph.

Both of them are traveling towards each others, so we can say the total speed is 2x+2.

Now i takes 3 hrs and we know the distance.

Since R*T=D

Then 3(2x+2)=270

So 2x+2=90

2x=88

x=44

12)

To find perpendicular we want to find the opposite reciprocal of the original slope. Therefore the slope is 3/2.

Now we must find the equation of the line with the given variable.

First find b.

5=3/2*4+b

b = -1

So the equation of this line is:

y=3/2x-1

13) All work will be shown below.

6-3(-2-4x)=2(3(x-4)+7)

6+6+12x=2(3x-12+7)

12+12x=2(3x-5)

12+12x=6x-10

6x=-2

x = -1/3

14)

First we must find the amount each train traveled.

The speed of F train(Freight train)=x

The speed of P train(passenger train)=x+6

Their combined speed is 2x+6

It takes 2 hrs to cover 100 miles

So 2(2x+6)=100

2x+6=50

2x=44

x=22

So the freight train covered 44 miles and the passenger train covered 56 miles.

To find average speed you must do Total Distance/Total Time.

44/2 and 56/2

Which are 22 and 28.

The average speed of F train is 22 mph and average speed of P train is 28 mph.

15) Again opposite reciprocal.

3/5 -> -5/3

Work:

-4=-3*-5/3+b

-4=5+b

b=-9

y = -5/3x-9

16)

F=kx-kx0

First kx0 = 0

So F=kx

So x=F/k

4 0
3 years ago
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