All categories

3 years ago

You have 2 orange picks for every 5 green. If there are 21 picks in all how many picks are orange

Mathematics

2 answers:

Ronch [10]3 years ago

4 0

15 picks are oranges

Answer:

2 ORANGE = 5 GREEN

GREEN = 2/5 ORANGE = 0.4 ORANGE

---

ORANGE + GREEN = 21

ORANGE + 0.4 ORANGE = 21

1.4 ORANGE = 21

ORANGE = 15

mina [271]3 years ago

3 0

6 picks are orange Because if you have 3 sets of green ( 15 picks) and 2 for each set (2x3 =6) you would have 6 of the 21 that are orange . 15 +6 =21

You might be interested in

For a store contest four out of 65 people who visit the store will receive a free DVD if 455 people visit the store how many DVD

klemol [59]

Divide 455 by 65 and get 7 multiply it by 4 and get 28. 28 dvds will be given away.

3 0

3 years ago

Circle O is centered at (5,−15) and point A(2,−14) lies on ⨀O.

givi [52]

Answer:

(5−6)2+(−15+12)2=(5−2)2+(−15+14)2

Step-by-step explanation:

Circle equation is : (x -h)^2 + (y - k)^2 = r^2

center (h, k) = (5, -15)

r = Distance from (5, -15) to point A (2, -14)

r = root ( (5 - 2)^2 + (-15 - (-14))^2 )

r = root ( 3^2 + 1^2)

r = root(10)

Equation is (x - 5)^2 + (y + 15)^2 = 10

Check point P(6, -12)

(6 - 5)^2 + ( (-12) + 15 )^2 check if this equals 10

1^2 + 3^2 = 1 + 9 = 10, 10 = 10 good

It is the same as using the equation:

(5−6)2+(−15+12)2=(5−2)2+(−15+14)2

6 0

3 years ago

Please help i need help with number 4 and 5

DIA [1.3K]

Question 4. Just replace x with 2a.
So f(2a) = 5(2a)^2 + 4(2a)
= 5*4a^2 + 8a
= 20a^2 + 8a

Question 5. Since x = 3, which is more than 1, use the second equation.
f(3) = 3^2 + 1
= 9 + 1
= 10

5 0

3 years ago

the quadrilateral ABCD on a coordinate plane has the following characteristics. AD can be represented by the equation y=-3x wher

vovangra [49]

The coordinates of point A will be (0, 0) and the coordinates of B will be (3, 2).

To find these coordinates you have to graph the points and line segments. You will see that the 2 line segments start at points C and D and move down to the right. The endpoints of these segments will form your parallelogram.

5 0

3 years ago

What is the soloution of x^2-1/x^2+5x+4<_0

JulijaS [17]

You have the following inequality given in the problem shown above:

(x^2-1)/(x^2+5x+4)≤0

1. To solve it, you must factor it and then you must make the study of the signs.

2. Once you do the proccedure mentioned above, you obtain the following solutions:

-4<x<-1

-1<x≤1

3. You can graph the inaquality given in the problem, as you can see in the figure attached.

6 0

3 years ago