3 years ago

160 bananas; 20% decrease

Mathematics

2 answers:

mezya [45]3 years ago

7 0

Answer:

do 160-20.

Step-by-step explanation:

rusak2 [61]3 years ago

3 0

Answer:128

Step-by-step explanation:

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Solve using the quadratic formula:

timurjin [86]

Answer:

$\boxed{x_1 = \frac{7 + \sqrt{5} }{2} ~~or~~x_2 = \frac{7 - \sqrt{5} }{2} }$

Step-by-step explanation:

$x^2 - 7x + 11 = 0$

$x^2 - 7x = -11$

$(x - \frac{7}{2} )^2 - \frac{49}{4} = -11$

$(x - \frac{7}{2} )^2 = -11 + \frac{49}{4}$

$(x - \frac{7}{2} )^2 = \frac{5}{4}$

$x - \frac{7}{2} = \pm \sqrt{\frac{5}{4}}$

$x = \frac{7 \pm \sqrt{5} }{2}$

3 0

3 years ago

How do u get the answer 9/2 onn this?

lubasha [3.4K]

Answer:

9/2

Step-by-step explanation:

3 x 60 = 180 minutes

180 minutes over 40 minutes

divide both by two and you get 90 minutes over 20 minutes

3 0

4 years ago

Read 2 more answers

Division was used in the first example.

VLD [36.1K]

Ok

Sulition because I said do

4 0

3 years ago

a pair of sneakers is 51$ this is 75% of the original price. how much less than the original price is the sale price?

fiasKO [112]

75% from the original price is 51 $
p - the original price
⇒ 75/100*p=51$
p=51*100/75=5100/75=68 $

68$ - 51$=17 $

The result is 17 $

7 0

4 years ago

What are the solutions to the following system of equations?

belka [17]

Answer:

D. no real answer

Step-by-step explanation:

8x-y=10 then y=8x-10

$y = {x}^{2} + 12x + 30 = 8x - 10$

${x}^{2} + 4x + 40 = 0$

it's a grade 2 equation, it has no real answer

because

${4}^{2} - 4(1)(40) = - 144 < 0$

3 0

3 years ago

Read 2 more answers