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nlexa [21]
3 years ago
9

Read this situation : Andres is adding molding to the ceiling in his living room. The room is 20 feet long and 12 feet wide. Wha

t length of molding does he need?
What do you need to operation do you need to do to manipulate this problem?

Area, Perimeter, or Circumference?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0
You would need to find the perimeter of the room
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URGENT 30 POINTS! Solve. {y=x−75x+2y=7 Use the substitution method.
NeTakaya
Y = x - 7 ---------- (1)
5x + 2y = 7 ------ (2)

Sub (1) into (2):
5x + 2(x -7) = 7
5x + 2x - 14 = 7
7x - 14 = 7
7x = 7 + 14
7x = 21
x = 3 ----- -sub into (1)
y = x - 7
y = 3 - 7
y = -4

Ans: x = 3, y = -4
6 0
3 years ago
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Which conclusion can be made?<br>a. a || b<br>b. c || d<br>c. c _|_ a<br>d. b _|_ d​
BabaBlast [244]

Question:

which conclusion can be made?

a. a || b

b. c || d

c. c _|_ a

d. b _|_ d

Answer:

a. a || b

4 0
2 years ago
z varies directly with x and inversely with y. When x = 6 and y = 2, z = 15. What is the value of z when x = 4 and y = 9?
cupoosta [38]

Answer: z =2.22

Step-by-step explanation:first determine the constant. Z= K(X/Y) if z is 15, x is 6 and y is 2 then 15= K(6/2) then K is 5.

When x is 4 and y is 9 . k is 5 then

Z ,= 5(4/9) = 2.2.

5 0
3 years ago
Malik bought chargers that are shaped like regular octagons. If the chargers have the dimensions shown below, what is the area o
vlada-n [284]
What are the dimensions?


7 0
3 years ago
The volume of a paper weight in the shape of a square pyramid is 48 cm3. Find the measure of one side of the base, if the height
Ulleksa [173]

The measure of one side of the base = 4 cm

Formula for the volume of a square pyramid V=\frac{1}{3}\times a^2h

The area of the base of the pyramid = 16 cm²

Length of the side of the base of the pyramid = 4 cm

Solution:

Given data:

Volume of a square pyramid = 48 cm³

Height of the square pyramid = 9 cm

Formula for the volume of a square pyramid:

$V=\frac{1}{3}\times a^2h, where a is one side of the base and h is height.

Substitute volume and height in the formula,

$48=\frac{1}{3}\times a^2\times9

$48=a^2\times 3

Divide by 3 on both sides of the equation,

$16=a^2 – – – – (1)

Taking square root on both sides of the equation, we get

a = 4

One side of the base = 4 cm

Area of the base = side × side

It is already found in equation (1),

Area of the base = 16 cm²

Length of the side of the base of the pyramid = 4 cm.

6 0
3 years ago
Read 2 more answers
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