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disa [49]
3 years ago
5

Lucia left a tip equal to 18% of the cost of her lunch. If she left $1.53 as her tip, what was the cost of her lunch, in dollars

?
Mathematics
1 answer:
xxMikexx [17]3 years ago
7 0

Answer:

$8.50

Step-by-step explanation:

$8.50 x 18% = $1.53

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Jordan has 4/5 as many DVDs as Joseph. If Jordan has 56 DVDs, then how many does joseph have?
Andreyy89
Jordan has 4/5 as many DVDs as Joseph means joseph has more DVDs than Jordan. number of joseph's DVDs * 4/5 = 56 so 
<span>number of joseph's DVDs= 56 * 5/4 = 70</span>
3 0
3 years ago
Read 2 more answers
Write a polynomial f (x) that satisfies the given conditions. Polynomial of lowest degree with zeros of -4 (multiplicity 3), 1 (
yuradex [85]

Answer:

Step-by-step explanation:

Polynomial f(x) has the following conditions: zeros of -4 (multiplicity 3), 1 (multiplicity 1), and with f(0) = 320.

The first part zeros of -4 means (x+4) and multiplicity 3 means (x+4)^3.

The second part zeros of 1 means (x-1) and multiplicity 1 means (x-1).

The third part f(0) = 320 means substituting x=0 into (x+4)^3*(x-1)*k =320

(0+4)^3*(0-1)*k = 320

-64k = 320

k = -5

Combining all three conditions, f(x)

= -5(x+4)^3*(x-1)

= -5(x^3 + 3*4*x^2 + 3*4*4*x + 4^3)(x-1)

= -5(x^4 + 12x^3 + 48x^2 + 64x - x^3 - 12x^2 - 48x - 64)

= -5(x^4 + 11x^3 + 36x^2 + 16x -64)

= -5x^3 -55x^3 - 180x^2 - 80x + 320

8 0
2 years ago
Read 2 more answers
Write in exponential form. 3a • 3a • 3a
o-na [289]
3a^3 is the answer

Hope that helps
5 0
3 years ago
13°38'35" to decimal degrees
babymother [125]

divide 35 by 3600

 divide 38 by 60

add them together

35/3600 = 0.009722

38/60=0.6333

0.6333+0.009722 = 0.64305

 so 13.64305 degrees. round answer as necssary

4 0
3 years ago
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A forest covers 73,000 acres. A survey finds that 0.4% of the forest is old-growth trees. How man acres of old-growth trees are
Alex777 [14]

Answer:

292 acres.

Step-by-step explanation:

OK so if there are 73,000 acres of trees in total and 0.4% are old we would simply calculate what 0.4% of 73,000 which is 292. So of those 73,000 acres of trees 292 acres of them would be "old-growth trees".

5 0
2 years ago
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