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Rufina [12.5K]
3 years ago
7

Area and perimeter for this rectangle

Mathematics
2 answers:
vladimir1956 [14]3 years ago
6 0

Answer:

Perimeter: 48mm

Area: 95mm

Step-by-step explanation:

Perimeter=2(l+w)

2((8x+3)+5)

-8x=2(3+5)

-8x=2(8)

-8x=16

x=2

2((8(2)+3)+5)= 48

So the perimeter is 48mm

Area=wl

l=19mm

w=5mm

19*5=95mm

So the area is 95mm

siniylev [52]3 years ago
5 0

Answer:

perimeter = (8x + 3mm + 5mm) ×2

area = (8x + 3mm) × 5mm

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Andre45 [30]

Answer: plane A = 333.33mph

Plane B = 500mph

Step-by-step explanation:

Given data:

Distance between the two planes = 2400miles.

Plane A flew North

Plane B flew south

Solution:

Let v represent plane A.

Let 2v represent plane B.

Distance between the two plane

v + 1.5* v = 3*v

7.5v = 2500miles

v = 333.33mph

Plane B has one and half times the speed of plane A

= 1.5 * 333.33

= 500mph

4 0
3 years ago
List the perfect cubes between 1,000 and 3,000 that are odd
Bogdan [553]
<span><span>1331 and 2197 is your Answer</span></span>
5 0
3 years ago
Plz Help!!! I need this Asap. Plz give an explanation and no guessing only answer if you know.
borishaifa [10]

Answer:

<h2>50°</h2>

Step-by-step explanation:

AB = AC

So, it is a isosceles triangle.

<B = <C = 65°

Sum of angles of triangle = 180°

< A + < B + <C = 180°

plug the values:

X + 65° + 65° = 180°

Calculate the sum

X + 130° = 180°

Move constant to R.H.S and change its sign

x = 180° - 130°

Calculate the difference

X = 50°

Hope this helps...

Good luck on your assignment...

7 0
3 years ago
I WILL MARK BRAINLIEST Twelve is added to a number and then the sum is multiplied by 4/5 to give 23.6. What is the number?
Aliun [14]

Answer: 17.5 or 35/2

Step-by-step explanation:

(If you change 4/5 to a decimal, it makes this easier. 4/5 would be 0.8.)

23.6 = (12 + x)*0.8

23.6 = 9.6 + 0.8x

14 = 0.8x

17.5 = x

17.5 as an improper fraction would be 35/2.

7 0
3 years ago
Evaluate the expression for the given value of the variable: 2(x²2) for x=3​
zysi [14]
The answer would be 36 because you just plug 3 in for x
8 0
3 years ago
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