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Leno4ka [110]
3 years ago
8

Help with 6th grade math!

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
8 0
The perimeter of a rectangle is the sum of all its sides. As a formula, this is 
P = w + w + l + l = 2w + 2l = 2(w + l),
where P is perimeter, w is the width, and l is length.

Let's apply this formula to your question and substitute given information, then solve for l.
P = 2(w + l)
10x + 6 = 2(3x - 3 + l).
10x + 6 = 6x - 6 + 2l
4x +12 = 2l
l = 2x + 6
Tom [10]3 years ago
4 0

Answer:

l = 2x + 6

Step-by-step explanation:

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55% as a fraction in simplest form.
nirvana33 [79]
Answer: 11/20
55/100 simplified is 11/20
3 0
3 years ago
Helppp meee!!!!!!!!!!
swat32
C because 180-230 would be negative b as well as three quarters of seven
4 0
3 years ago
Use the function f(x)=x^2-8 find the inverse of f(x)
likoan [24]

Answer:


Step-by-step explanation:

let : y = x² - 8

calculate : x

x² = y + 8

x exist : y + 8 ≥ 0

x = √(y + 8)    or x =  - √(y + 8)

conclusion :

if : x ≥ 0    the inverse of f(x) is : g(x) = √(x + 8)

if : x ≤ 0    the inverse of f(x) is : h(x) =  - √(x + 8)


4 0
3 years ago
A canoe traveled Downstream with the current and went a distance of 15 miles in three hours. On the return trip, the canoe trave
coldgirl [10]

Answer:

1 mile/hr

Step-by-step explanation:

Let the Speed of the boat still in water = a

Speed of the current = b

We know from this formula that speed = distance/time

Hence,

A canoe traveled Downstream with the current and went a distance of 15 miles in three hours.

Downstream = a + b = 15/3

a + b = 5 .........Equation 1

On the return trip, the canoe traveled Upstream against the current. It took 5 hours to make the return trip.

Upstream = a - b = 15/5

a - b = 3 ..............Equation 2

Combining both Equation together

a + b = 5 .........Equation 1

a - b = 3 ..............Equation 2

Subtracting Equation 2 from Equation 1

2b = 2

b = 2/2

b = 1miles/hr

Since b = speed of the current which can also be called rate of the current, the rate of the current = 1 miles/hr

4 0
3 years ago
Avery bought a flute that cost $430. She paid a 6 1/2% sales tax rate. What was the total cost of the flute?
Georgia [21]

Answer:

457.95

Step-by-step explanation:

430 + 6.5% (27.95) = 457.95

3 0
3 years ago
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