3 years ago

Jessie has baked 30 out of 120 cookies. what percent of the cookies did jessie not bake

1 answer:

7 0

This is a percent problem which means
You take the amount that has been completed over the total amount. You then multiply it by 100%
30/120*100=25%

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Solve the system of equation below using any method.<br> 3x-2y=30<br> 2x+3y=-19

Andrews [41]

{ 3 x - 2 y = 30   * ( 2 )
2 x + 3y = - 19 * ( -3 )

↓

  6 x - 4 y = 60
- 6x - 9 y = 57
______________
-13 y = 117

y = 117 / - 13

y = - 9

For x :

3 x - 2y = 30

3 x - 2 ( -9) = 30

3 x + 18 = 30

3 x = 30 - 18

3 x = 12

x = 12 / 3

x = 4

x = 4 and y = -9

hope this helps!

5 0

3 years ago

55. Find the area of half of a circle with a radius of 16 mm.

SVEN [57.7K]

Answer:

401.92

Step-by-step explanation:

3.14 x 16²/2 is the formula for the area of a semicircle. Hope this helps.

4 0

3 years ago

Read 2 more answers

Need help again please...

Greeley [361]

40 - 4 = 36

average = 36/9 = 4

answer
average number of members who joined the math club is 4 per month

5 0

4 years ago

What is the vertex of the quadratic function fix=(x-8)(x-2)

VikaD [51]

Answer:

Vertex: (5, -9)

Step-by-step explanation:

fix = (x-8)(x-2)

fix = x^2 - 2x - 8x + 16

fix = x^2 - 10x + 16

a = 1, b = -10, and c = 16

To find vertex:

x = -b/2a

x = -(-10)/2(1)

x = 10/2

x = 5

y = 5^2 - 10(5) + 16

y = 25 -50 + 16

y = -9

Vertex: (5, -9)

8 0

3 years ago

If you purchesd a $49.00 gift and you use a 20% off coupon how much do you spend

Nutka1998 [239]

Answer:

$39.20

Step-by-step explanation:

$49 * (1-.2) = $39.20

4 0

3 years ago