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Elza [17]
3 years ago
15

last year, 639 students attended a summer camp. of those who attended this year, 0.5% also attended summer camp last year. about

how many students attended the summer camp two years in a row? please show ur work for me thank you
Mathematics
2 answers:
antiseptic1488 [7]3 years ago
6 0
First you find 0.5% of 639 = 0.5/100=x/639
Or 0.5*639/100
This would be 3.195
Second you round 3.195 to the nearest whole number which would be 3
So 3 students attended the camp two years in a row.
lawyer [7]3 years ago
4 0

Answer:

First of all, he have to find out what 0.5% of the students is.

Second of all, find out what 0.5 of 100 is. 100 divided by 0.5 is 200.

Third of all, divide 200 from 639. This equals 3.195

Since it is asking about how many, I would go with about 3. After all, you can't have have half of a person, so the decimals shouldn't be added.

Step-by-step explanation:

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Ellie is placing an order for 5 tuna salads and 2 chicken salads. Each salad costs $8.50, including tax. What is the total cost
Karo-lina-s [1.5K]

Answer:

The total cost of the salad is $59.50

Step-by-step explanation:

If each salad irrespective of there type costs $8.50

and Ellie ordered 5 tuna and 2 chicken salad, that

5+2 = 7 salads

Then the total cost of the salad will be

7*8.50 = $59.50

5 0
3 years ago
A long jumper lifts off 3 m after starting his run, and lands 6 m later. When he is 8 m from the start line, he is 5 cm above an
slega [8]

Answer:

The equation of the parabola that models the path of the long jumper through the air is y = -x^{2}+12\cdot x -27.

Step-by-step explanation:

Mathematically, we know that parabolas are second-order polynomials and every second-order polynomials, also known as quadratic functions, can be constructed by knowing three different points of the curve. The standard form of the parabola is:

y = a\cdot x^{2}+b\cdot x + c

Where:

x - Horizontal distance from the start line, measured in meters.

y - Height of the long jumper, measured in meters.

a, b, c - Polynomial constants, measured in \frac{1}{m}, dimensionless and meters, respectively.

If we know that (x_{1},y_{1}) = (3\,m, 0\,m), (x_{2},y_{2}) = (8\,m, 0.05\,m) and (x_{3}, y_{3}) = (9\,m, 0\,m), this system of linear equations is presented below:

9\cdot a + 3\cdot b + c = 0 (Eq. 1)

81\cdot a + 9\cdot b + c = 0 (Eq. 2)

64\cdot a + 8\cdot b + c = 0.05 (Eq. 3)

The coefficients of the polynomial are, respectively:

a = -\frac{1}{100}, b = \frac{3}{25}, c = -\frac{27}{100}

The equation of the parabola that models the path of the long jumper through the air is y' = -\frac{1}{100}\cdot x^{2}+\frac{3}{25}\cdot x -\frac{27}{100}.

But we need y measured in centimeters, then, we use the following conversion:

y = 100\cdot y'

Then, we get that:

y = -x^{2}+12\cdot x -27

Where x and y are measured in meters and centimeters, respectively.

The equation of the parabola that models the path of the long jumper through the air is y = -x^{2}+12\cdot x -27.

4 0
3 years ago
Double time pay is twice the regular time pay rate. If Rita, a nurse, earns $24 per hour for her regular pay rate and she is pai
Kitty [74]

Answer:24r+48h= $1248

Step-by-step explanation:

24*36+48*8

864 + 384 = 1248

Not sure if it's correct I'm not brilliant with equations xx

8 0
3 years ago
G(x)=3^x +1 and f(x)=3x+1 which values of x makes f(x) =g(x) true
fomenos

Answer:

x=1

Step-by-step explanation:

3^x +1

f(x)=3x+1

f(x) =g(x)

3x +1 =3^x +1

Subtract 1 from each side

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Let x =1

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5 0
3 years ago
Read 2 more answers
Find the distance between -6,5 and -3,1
Elenna [48]

Answer:

11.7

Step-by-step explanation:

\sqrt{(-6-5)^2(-3-1)^2 }\\

=11.7

3 0
3 years ago
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