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Tatiana [17]
3 years ago
9

What is the gcf of 21 30 anwhat is the gcf of 21 , 30 ,and 44?

Mathematics
1 answer:
Ymorist [56]3 years ago
5 0
Find the prime factorization of each value.

21 is 7*3

30 is 3*10 which can be further broken down into 3*2*5

44 is 4*11 which can be further broken down into 2*2*11

What do they share in common?
21 and 30 each have a 3 in common.
Therefore the GCF(21, 30) = 3.

21 and 44 share a 2 in common.
But if we're looking at all three of them together, they share nothing in common.
You might be interested in
A brownie recipe calls 1 2/3 cups of nuts. Ethan wants to use only half of this amount.
7nadin3 [17]

c. 5/6 cups

Step-by-step explanation:

1 2/3 = 5/3

5/3= 1.666

1.66÷2= 0.833

When we divide. the number should equal 0.833

8/3= 2.66 nope

10/3= 3.33 nope

5/6= 0.833 yes

6/5= 1.2 nope

3 0
3 years ago
Which equation has no solution?<br> |-x - 3| = 5<br> |2x – 1| =0<br> |15 - 3x|= -8<br> |-x + 9| = 0
djverab [1.8K]

Answer:

the last one

Step-by-step explanation:

5 0
3 years ago
Please help me w this an explain how you got it!.
pishuonlain [190]

Answer:

Vertex → (2, 4)

Step-by-step explanation:

Quadratic equation has been given as,

y = -x² + 4x

We rewrite this equation in the form of a function as,

f(x) = - x² + 4x

By comparing this equation with the standard quadratic equation,

y = ax² + bx + c

a = -1 and b = 4

Vertex of the parabola represented by this equation is given by [-\frac{b}{2a}, f(\frac{-b}{2a})]

x coordinate = -\frac{4}{2(-1)}

                     = 2

y-coordinate = f(2)

                     = - (2)² + 4(2)

                     = -4 + 8

                     = 4

Therefore, vertex of the given function is (2, 4)

6 0
2 years ago
What percent of the bill will you pay if you pay your bill plus a 9.5% tax?
Gelneren [198K]

Answer:

109.5% of the bill

Step-by-step explanation:

You have to pay 100% of your bill (or else you wouldn't have paid your bill in full) and as you said, "plus a 9.5% tax". 100+9.5=109.5%

7 0
3 years ago
Solve this problem please
nika2105 [10]
Hi, Ptaverez1! :)

First we must length of an individual square; This can be achieved by using the formula for the area of a square:
l^2
l=Length

Lets input the information we already know:
l^2=42.25
Take square root.
l=\sqrt42.25
l=6.5

The length of an individual square tile is 6.5 ft.

Since they're are 9 tiles and the porch in a square, I can conclude that the measurements for the porch are 3 tiles by 3 tiles (as 3*3=9; using the formula for the area of a square.)

Since the length of the porch is 3 tiles, we must multiply the individual tiles piece length by 3:
3*6.5
=19.5

The formula for the perimeter of a square is:
l*4
l=length

Lets input the information we know:
19.5*4
=78

The perimeter of the porch is 78 feet²

Hope this helps.
-Benjamin

8 0
3 years ago
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