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zalisa [80]
3 years ago
15

Solve equation by using the quadratic formula.

Mathematics
1 answer:
marshall27 [118]3 years ago
4 0

Answer:

x(15x+13)=0

x=0 or 15x+13=0

so x=0 or x=-13/15

Step-by-step explanation:

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$3.25x 5.6=$18.20-$18.50= $0.30
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Brianna bought snacks for her team's practice. She bought a bag of oranges for $2.72 and a 20-pack of juice bottles. The total c
posledela

Answer:

each bottle was $2.12 :P

Step-by-step explanation:

➼start by making an equation to find the price of the juice pack, in this case x would be the price of the juice pack because its unknown, the juice pack price(x) added to the price of the oranges(2.72) and equal the total(45.12), the before tax part is not needed info

2.72 + x = 45.12

➼now our aim to get x alone to find out its worth so we will have to do the opposite and subtract 2.72 from everything, since its positive

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➼which gets us x = 42.4 so one 20 pack is 42.40 dollars but we arent done yet, to find out the price of EACH bottle we must divide 42.4 by 20!

42.4/20=2.12

➼so to sum it up, each bottle is $2.12 :)

4 0
3 years ago
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Banners at the school store were on sale for $3 off the rugular price. Louis brought 4 banners on sale and paid a total of $18.
Naddik [55]

Answer:

$7.50

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4 x 3.00 = $12.00  3.00 off the regular price makes it 12.00 for all the banners

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Step-by-step explanation:

amount increased to the toy = y

new price of the toy after adding markup = z

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therefore z= x+y

7 0
2 years ago
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