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Neko [114]
3 years ago
5

Susan has a balance of $110 in her school lunch account, and she spends $6 per day. Her sister Evelyn has $83 in her lunch accou

nt, and she spends $4 per day for lunch. In how many days will Susan's lunch account balance be less than Evelyn's
Mathematics
1 answer:
Oxana [17]3 years ago
5 0

Answer:

In 2 days  Susan's lunch account balance will be less than Evelyn's

Step-by-step explanation:

Susan has a balance of $ 110  which will be enough for = 110/6= 18  days

Evelyn has a balance $ 83 which will be enough for = 83/4= 20 days

In 2 days  Susan's lunch account balance will be less than Evelyn's

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A hiker follows a trail to the top of a mountain. The trail is 15 miles long. She hikes at a rate of 2.5 mph. Which sketch repre
soldier1979 [14.2K]
15 miles/2.5 mph=15/2.5=6 hours left

so 6 hours, 15 miles which is option D
4 0
3 years ago
Jane is 5 times older than her sister. In 3 years, Jane’s sister will be 1/4 her age. Find the ages now
Korolek [52]

The present age of Jane is 45 years old and present age of her sister is 9 years old

<em><u>Solution:</u></em>

Let the present age of Jane be "x"

Let the present age of her sister be "y"

<em><u>Jane is 5 times older than her sister</u></em>

present age of Jane = 5(present age of her sister)

x = 5y ---------- eqn 1

<em><u>In 3 years, Jane’s sister will be 1/4 her age</u></em>

Age of sister after 3 years = 3 + y

Age of jane after 3 years = 3 + x

Age of sister after 3 years = 1/4(age of jane after 3 years)

3 + y = \frac{1}{4}(3 + x)

Substitute eqn 1 in above equation

3 + y = \frac{1}{4}(3 + 5y)\\\\12 + 4y = 3 + 5y\\\\5y - 4y = 12 - 3\\\\y = 9

Substitute y = 9 in eqn 1

x = 5(9)

x = 45

Thus present age of Jane is 45 years old and present age of her sister is 9 years old

3 0
3 years ago
A hair salon uses 4 bottles of shampoo for every 3 bottles of conditioner
liraira [26]

Answer:

4 8 12 16

3 6 9  12

Step-by-step explanation:

8 0
3 years ago
A circle is inscribed in a square. A point in the figure is selected at random. Find the probability that the point will be in t
hram777 [196]
P of selecting point on the shaded region   = shaded area/whole area 
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<span>P of  selecting point on the shaded  = ( 4 * ( π * x^2/16 ) )/ x^2 </span>
<span>P of  selecting point on the shaded = ( π * x^2/4 )/ x^2 </span>
<span>P of  selecting point on the shaded = x^2( π/4 )/ x^2 </span>
<span>P( selecting point on the shaded ) = π/4 ≈ 0.7854 ≈ 79%
 =80% 
D is right option hope this helps</span>
4 0
3 years ago
How to find the vertex of a quadratic function?
slamgirl [31]
The formula for a quadratic function is y=ax^2+bx+c.
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Hope this helps!
6 0
3 years ago
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