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3 years ago

The table below shows the number of students who attend various after-school activities

Mathematics

2 answers:

tangare [24]3 years ago

5 0

Answer:

The part-to-whole relationship between homework help and sports

Step-by-step explanation:

First you add the basketball and the soccer together giving you 44

that is all the sport clubs combindnd and the homework help is 17 44

oh ya he got the numbers mixed up mine is right just letting you know

aleksley [76]3 years ago

3 0

Answer:

D.the part-to-whole relationship between homework help and all activities

Step-by-step explanation:

You might be interested in

ANSWER CORRECTLY AND IF YOU DONT KNOW IT JUST DONT SAY ANYTHING

arlik [135]

9514 1404 393

Answer:

A. 40, dollars added per day to the bank account

B. y -600 = 40(x -0); y = 40x +600; 40x -y = -600

C. f(x) = 40x +600

D. $880

Step-by-step explanation:

A. The slope is given by the formula ...

m = (y2 -y1)/(x2 -x1)

m = (720 -600)/(3 -0) = 120/3

m = 40

The bank account is increasing at the rate of $40 per day.

B. Point-slope form is ...

y -k = m(x -h) . . . . . line with slope m through point (h, k)

Using the first point, we have (h, k) = (0, 600) and m = 40.

y -600 = 40(x -0)

Slope-intercept form is ...

y = mx +b . . . . . . line with slope m and y-intercept b

The first point tells us the y-intercept is b=600, so the equation is ...

y = 40x +600

Standard form is ...

ax + by = c . . . . . . . a > 0, and a, b, c mutually prime

This form can be obtained by subtracting y from the point-slope form.

40x -y = -600

C. Replacing y with f(x) in the slope-intercept form gets the desired equation.

f(x) = 40x +600

D. The table shows the balance after 6 days. The balance increases $40 each day, so the balance after 7 days is ...

$840 +40 = $880 . . . . balance after 7 days

5 0

3 years ago

15. An equilateral triangle has side lengths that

lorasvet [3.4K]

Answer:

a) 3(1.2x - 8) or 3.6x - 24

3(1.2x - 8) = 12

1.2x - 8 = 4

1.2x = 12

x = 12/1.2

= 10

5 0

2 years ago

Suppose a home improvement contractor is painting the walls and ceiling of a rectangular room. The volume of the room is 288 cub

ratelena [41]

Answer:

The minimum cost is $17.30c

Step-by-step explanation:

Given

$V = 288$ --- Volume

$C_1 = 0.06$ --- cost of wall paint

$C_2 = 0.16$ ---cost of ceiling paint

Required

Minimum cost of paint

The volume is calculated as:

$V =xyz$

Substitute 288 for V

$288 =xyz$

Make z the subject

$z = \frac{288}{xy}$

The surface area is calculated as:

$Area = 2(yz + xz) + xy$

Because xy represent the dimension of the ceiling and the opposite of the ceiling (the floor) will not be painted. Hence, it does not require a coefficient of 2

The cost is:

$C = 0.06 * 2(yz + xz) + 0.16 * xy$

Substitute $z = \frac{288}{xy}$

$C = 0.06 * 2(y*\frac{288}{xy} + x*\frac{288}{xy}) + 0.16 * xy$

$C = 0.06 * 2(\frac{288}{x} + \frac{288}{y}) + 0.16 * xy$

$C = 0.12(\frac{288}{x} + \frac{288}{y}) + 0.16 * xy$

$C = (\frac{34.56}{x} + \frac{34.56}{y}) + 0.16 * xy$

$C = (\frac{34.56}{x} + \frac{34.56}{y}) + 0.16 xy$

Differentiate w.r.t x and y

$C_x = -\frac{34.56}{x^2} + 0.16y$

$C_y = -\frac{34.56}{y^2} + 0.16x$

By comparison: $x = y$

Set them equal to 0

$C_y = -\frac{34.56}{y^2} + 0.16x=0$

$-\frac{34.56}{y^2} + 0.16x=0\\$

Substitute x for y

$-\frac{34.56}{x^2} + 0.16x=0$

$0.16x=\frac{34.56}{x^2}$

Cross multiply

$0.16x^3 = 34.56$

$x^3 = \frac{34.56}{0.16}$

$x^3 = 216$

Take the cube root of both sides

$x = \sqrt[3]{216}$

$x = 6$

$x=y= 6$

Substitute 6 for x and for y in $C = (\frac{34.56}{x} + \frac{34.56}{y}) + 0.16 xy$

$C = (\frac{34.56}{6} + \frac{34.56}{6}) + 0.16 * 6* 6$

$C = (\frac{2*34.56}{6}) + 5.76$

$C = 11.52 + 5.76$

$C = 17.28$

$C = 17.3$ --- approximated

8 0

3 years ago

Find the area of the figure.<br> T<br> 13 ft<br> 10 ft)<br> 13 ft?

lara31 [8.8K]

13 ft is the right answer

3 0

3 years ago

Pick a simple random sample of 15 restaurants. Describe your method and list the numbers of the restaurants you have chosen.

KengaRu [80]

Answer:

r3yes

Step-by-step explanation:

yes

5 0

4 years ago