3 years ago

3 Gordon is selling popcorn that costs

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

7 0

Answer:

30 more bags

Step-by-step explanation:

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pls help me with this if you know it also to explain it thanks Solve the equation -21 + 70n = 77 for n.

gogolik [260]

Answer:

n = 1 2/5

Step-by-step explanation:

-21 + 70n = 77

Add 21 to each side

-21+21 + 70n = 77 +21

70n = 98

Divide each side by 70

70n/70 = 98/70

n =98/70

n = 70/70 +28/70

n = 1 + 2/5

n = 1 2/5

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3 years ago

WILL MARK BRAINLIST!!! A scale drawing of a living room is shown below. The scale is 1 : 40. A rectangle is shown. The length of

sveta [45]

Actual length of the room
6 * 40
240 inches

Actual width of the room
4 * 40
160 inches

Area of the room
240 * 160
38400 inches^2
Hope this helps:D
Have a great rest of a brainly day!

4 0

3 years ago

For which positive integer values of $k$ does $kx^2+20x+k=0$ have rational solutions? Express your answers separated by commas a

Musya8 [376]

Answer:

-10,10

Step-by-step explanation:

The given quadratic equation is

$k {x}^{2} + 20x + k = 0$

The discriminant of this equation is given by;

$D = {b}^{2} - 4ac$

where a=k, b=20, c=k

For rational solutions, the discriminant must be zero.

${20}^{2} - 4 \times k \times k = 0$

Simplify to get:

$400 - 4 {k}^{2} = 0$

This implies that:

$400 = 4 {k}^{2}$

$100 = {k}^{2}$

Take square root to get:

$k = \pm\sqrt{100}$

$k = \pm10$

$k = - 10 \: or \: k = 10$

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2 years ago

Hindle McKingleberry is a young child and has $3 in his bank account on the first day of the

matrenka [14]

Answer:you got this

Step-by-step explanation:

7 0

3 years ago

Pls help i will give you thanks,5 star rating and branliest

Bumek [7]

C aka 6 good luck man

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2 years ago