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3 years ago

The perimeter of a rectangular piece of metal is 24 centimeters.it is 4 1/2 centimeters wide.how long is it

2 answers:

8 0

P=24(cm)
width= 4 1/2 (cm)
P=(a+b)*2=24
a - width
b - length
4.5+b=24/2=12
b=12-4.5
b=7,5
Well, length is 7.5 cm

IrinaVladis [17]3 years ago

7 0

7 3/4 centimeters long. 4 1/2 x 2= 8 1/2 (width of both sides combined) 24 - 8 1/2= 15 1/2 (length of both sides combined) 15 1/2 divided by 2= 7 3/4 (length of one side)

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rewona [7]

Answer:

Find the area by multiplying the base by the height. From the problem, the length (base) of the rectangle is 5 units. The height of the rectangle is

$3\frac{1}{2}$

inches. Multiply to find the area.

$5 \times 3 \frac{1}{2} = 17 \frac{1}{2}$

The area of the rectangle is 17 1/2 units squared. The answer you provided is correct!

5 0

3 years ago

Find the value of z. round to the nearest hundredth

Svetradugi [14.3K]

ANSWER

C. 64.29

EXPLANATION

The bigger right triangle is similar to the smaller right triangle, therefore

$\frac{30}{14} = \frac{z}{30}$

Multiply both sides by 30;

$30 \times \frac{30}{14} = \frac{z}{30} \times 30$

Simplify

$z = \frac{900}{14}$

$z = 64.28571429$

We correct to the nearest hundredthth to obtain,

$z = 64.29$

The correct choice is C.

3 0

3 years ago

Does anybody know this

AlexFokin [52]

Note that the measurements of the side of the squares are the same.

Area = base x height

Area = length x width

The area given is 400

Root 400 to get the length of the sides

√400 = 20

20 in. is your side measurement

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5 0

3 years ago

Write the first 4 terms for f (1) = 3, f (n) = [f(n-1)]

Alexxx [7]

$f(1)=3\\\\f(n)=[f(n-1)]\\\\f(2)=[f(2-1)]=[f(1)]=[3]=3\\\\f(3)=[f(3-1)]=[f(2)]=[3]=3\\\\f(4)=[f(4-1)]=[f(3)]=[3]=3\\\\f(5)=[f(5-1)]=[f(4)]=[3]=3$

4 0

3 years ago

Beinggreat78 please answer fast

NARA [144]

Answer:

Option B, 24 feet

Step-by-step explanation:

Step 1: Determine the perimeter

To find how much fence we will need to go around the garden means that we need to find the perimeter. In order to find the perimeter we need to add up all of the sides which we can do using the formula below.

$P = 2(w + l)$

$P = 2(5\ ft + 7\ ft)$

$P = 2(12\ ft)$

$P = 24\ ft$

Answer: Option B, 24 feet

4 0

2 years ago