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Rudiy27
3 years ago
10

Yesterday, Nina's lunch cost $9.80 and she left a $1.47 tip. Today, Nina's lunch cost $12.60. If she tips the same rate that she

did yesterday, how much tip should Nina leave?
Mathematics
1 answer:
Anni [7]3 years ago
8 0
I think the answer is 1.89
Explanation: 9.80 divided by 1.47 is 6 2/3
12.60 divided by 6 2/3 is 1.89
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Makaila read 44 pages of her book yesterday and 2/3 of the book today. If she read a total of 200 pages in the past two days how
pogonyaev

Answer:

Total number of pages in the book is 234.

Step-by-step explanation:

Let us assume that the total number of pages in the book = <em>x</em>

Now, it is given that Makaila read 44 pages yesterday.

Also, Makaila read two-third of the book today. As we have assumed that, there are a total of x number of pages in the book, so we can say that Makaila read two-third of <em>x </em>number of pages today.

Number of pages read by Makaila today = \frac{2}{3}\;of\;x=\frac{2}{3}\times\;x=\frac{2x}{3}

Now, it is also given that, Makaila read a total of 200 pages in the past two days.

∴ according to question,

Pages read yesterday + Pages read today = 200

⇒44+\frac{22x}{3}=200

⇒\frac{44\times3+2x}{3}=200

⇒\frac{132+2x}{3}=200

⇒132+2x=200\times3\;\;\;\;\;\;\;\;\;[On\;cross-multiplying]

⇒132+2x=600

⇒2x=600-132

⇒2x=468

⇒x=\frac{468}{2}=234

∴ Total number of pages in the book = <em>x</em> = 234

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3 years ago
Eleven graduate students have applied for three available teaching assistantships. In how many ways can these assistantships be
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3men, 1 women. for the first 2. and 2 men, 1 women for the third
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2 years ago
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Solve for x. x^2 + 4x = 12​
tigry1 [53]

Answer:

2

Step-by-step explanation:

2^2+4(2)=12

4+8=12

So, x=2

Hope this helps.

-Amelia

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3 years ago
X² +12x+27 = 0<br><br> Find the roots of each equation by factoring
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Answer:

x = -9, -3

Step-by-step explanation:

{x }^{2} + 12x + 27 = 0

(x + 3)(x + 9) = 0

x = -3, -9

5 0
1 year ago
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3. There are 124 acorns laying on the ground in your yard, it is predicted that the number of acorns will
Gennadij [26K]

Answer:

507,409

Step-by-step explanation:

if every 5 days the number quadruples (x4), and we want to know how many acorns fall after 30 days, we can divide 30 by 5 so we only have to calculate for the amount of time the take to quadruple.

30 ÷ 5 = 6

so we only have to quadruple the acorns 6 times.

if we start off with 124 acorns, this is what it will look like:

Day 0: 124 acorns

Day 5: 124 x 4 = 496 acorns

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etc... until day 30.

Day 30: 507904 acorns

I hope this was helpful :-)

5 0
3 years ago
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