Literal equations
Solve P=2(l+W) for l

Answers

Answer 1
Answer:
                           P = 2(L +W)

Divide each side of the equation by 2 :    P/2 = L + W

Subtract  W  from each side :                  P/2 - W  =  L


Answer 2
Answer: P=2(l+W)\nl+W=(P)/(2)\nl=(P)/(2)-W

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Find the volume of each figure. Be sure to include the units, and circle or box your answers.
1)
4 in
2)
12 m
10 m
2 in
2 in
2 in
2 in
3)
4 ft
4)
10 yd
8 yd
6 yd
8m
6m
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12 ft
12 ft
4 ft
2 ft
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7)
7 ft
8)
8 m
3m
4m
9)
12 in
9 in
9 in
10)
11 mi
8 ft
6 ft
5m
10 ft
12 in
12 in
11)
12)
6 mi 6 mi
8 mi
8 mi
10 in
10 in
3 in
7 in
5 mi
6 mi
3 in
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6 mi
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Answers

Not sure because I don’t see the figures I’m supposed to find the volume of

Find the sum of the sequence.
39 +40 +41 +42 + ... + 138

Answers

Answer:

Sol1 you can use "first(first+last)/2" is 138(138+1)/2 - 38(38+1)/2 = 8850

Sol2 or you can look this 39+40+41+....+100+(100+1)+(100+2)+....+(100+38) = 1+2+3+.....+99+100+100(38) = 5050+3800 =8850

Determine whether y varies directly with x. If so, find the constant of variation and write the equation. yes; k = 1/4 and y = 1/4x

No

yes; k = 4 and x - 4y

yes; k = 4 and y - 4y

Answers

Answer:

Yes, 4 and  y = 4x

Step-by-step explanation:

By looking at the graphic you see it's a straight line, not a hyperbolic curve, not a logarithm curve either, not a curve at all in fact.  And the line is neither totally horizontal nor totally vertical... so there's a direct relation, a direct positive relation, since the greater the x-value, the greater the y-value.

Then we have to find the constant of variation, or the slope of the line.

We'll take two points on the line (1,4) and (0,0) and examine their variance of Y over their variance of X... that will give us the constant of variation:

slope = (4-0)/(1-0) = 4

So the constant of variation is 4.

Now that we have the slope, its easy to find the full equation:

y = mx + b where m is the slope (we have it) and b is the value for y when x = 0.

By looking at he graph, we see that when x = 0, y = 0 as well.

So, the equation is: y = 4x

In the cafeteria there are 7 teachers 48 girls and 45 boys What is the probability that a person chosen at random from the cafeteria is a boy

Answers

total peoples = 7 + 48+ 45 = 100
probability of boys = number of boys / total people
                             45/100 = 9/20
7+48+45
48+45=93
so 93% chance of a boy getting chosen

a factory procceses 1560 ounces of Olive oil per hour .the oil is packaged into 24 ounce bottles .how many bottles does the factory does the f actory fill in one hour

Answers

one-thousand five-hundred and sixty divided by twenty four is sixty five

8×4= (?×7)-(?×3)

Can u sove the equation^

Answers

8*4 = 32

Now, we need to solve this:-

32 = (?*7) - (?*3)
32=8*7 - 8*3
32= 56 - 24
32 = 32

So our equation is:-

8*4 = (8*7) - (8*3)



so solve for ?
we use commutative which is a(bc)=(ab)c or also =abc
remember that (? times 7)=1(? times7)=1 times ? times 7=? times 7=7?
and
-(? times 3)=-1(? times 3)=-1 times ? times 3=  -? times 3=-?3=-3?
so we have
8 times 4=7?-3?
7? means 7 times ? so therefor 7?-3?=7 times of ?  -3  times of ?=7-3=4 times of ? so 4?
8 times 4=4?
multiply divide both sides by 4
8=?