420+69+911+1080=? Im slow help

Mathematics

1 answer:

earnstyle [38]2 years ago

6 0

Answer:

Step-by-step explanation:

420 + 69 + 911+ 1080

489 + 911 + 1080

1400 + 1080

2480

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bicycle costs $150. It is advertised on sale for 32% off. What is the cost savings? Solve using two different methods.

alina1380 [7]

The savings is the amount taken off or 32% of 150

32% of 150 is 0.32 times 150=48

savings is $48

or you can do
150/100=x/32
cross multiply to get
x=48

so savings is $48

5 0

2 years ago

Read 2 more answers

What 2 numbers multiply to be -14 and add to be -3

Svetach [21]

Xy = -14
x + y = -3

$xy = -14$
$\frac{xy}{x} = \frac{-14}{x}$
$y = \frac{-14}{x}$

$x + y = -3$
$x + \frac{-14}{x} = -3$
$\frac{x^{2}}{x} + \frac{-14}{x} = -3$
$\frac{x^{2} - 14}{x} = -3$
$x^{2} - 14 = -3x$
$x^{2} + 3x - 14 = 0$
$x = \frac{-(3) \± \sqrt{(3)^{2} - 4(1)(-14)}}{2(1)}$
$x = \frac{-3 \± \sqrt{9 + 56}}{2}$
$x = \frac{-3 \± \sqrt{65}}{2}$
$x = \frac{-3 \± 8.06}{2}$
$x = -1.5 \± 4.03$
$x = -1.5 + 4.03$ $or$ $x = -1.5 - 4.03$
$x = 2.53$ $or$ $x = -5.53$

  x + y = -3
2.53 + y = -3
- 2.53 - 2.53
  y = -5.53
  (x, y) = (2.53, -5.53)

x + y = -3
  -5.53 + y = -3
+ 5.53   + 5.53
  y = 2.53
  (x, y) = (-5.53, 2.53)

The two numbers that multiply to -14 and add up to -3 are -5.53 and 2.53.

8 0

2 years ago

Can someone quickly help me solve this ?!

Rainbow [258]

Answer: 8

Step-by-step explanation: if you count the angels and the sides then you'll get the answer 8..

7 0

2 years ago

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Kate's swim coach informs her that she only has 35% of her workout left. Kate has swum 26 laps so far.

Sergio039 [100]

Well so far, Kate has saw 65% of her workout

65% of total = 26
0.65 * t = 26
t = 26/0.65
t = 40 laps