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3 years ago

Is 152 points in 8 games 171 points in 9 games equivalent

Mathematics

1 answer:

max2010maxim [7]3 years ago

3 0

Answer:

Yes, they are equivalent.

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A teacher asked her class of 32 students how they got to school that morning. Twice as many students said they rode the bus as w

asambeis [7]

Bus riders: 2c

Car riders: c

Walkers: 1/5c

Bus + Car + Walkers = Total

2c + c + 1/5c = 32

3 $\frac{1}{5}$ c = 32

$\frac{16}{5}$ c = 32

c = 32 ( $\frac{5}{16}$

c = 10

Bus: 2c = 2(10) = 20

Walkers: $\frac{1}{5}$ c = $\frac{1}{5}$ (10) = 2

Answer: Bus riders=20, Car riders=10, Walkers=2

5 0

3 years ago

Evaluate the integral f*dr where f(x,y)=<-y,x^2> and c consists of te arc of the parabola y=2x^2 from (-1,2) to (1,2)

d1i1m1o1n [39]

$y=2x^2\implies\mathbf r(x)=\langle x,2x^2\rangle$

$\displaystyle\int_C\mathbf F\cdot\mathrm d\mathbf r=\int_{t=-1}^{t=1}\langle-2x^2,x^2\rangle\cdot\langle1,4x\rangle\,\mathrm dx$
$=\displaystyle\int_{-1}^1(8x^3-2x^2)\,\mathrm dx$
$=-\dfrac43$

3 0

3 years ago

Suppose a tank leaks toxic chemicals. The area affected is a circle centered on the tank. When the spill is first noticed, the c

cricket20 [7]

Answer:

0.5 ft per min

Step-by-step explanation:

in 80 minutes the radius expanded by 40%

we can set up a proportion of percent change over minutes:

.4/80 = r/1

cross-multiply to get:

80r = .4

r = .005 or 1/2 of a foot per minute.

Hope It Helps :)

8 0

3 years ago

Solve the following 1) 2(x + 3) = x - 4 2) 4(5x-2) = 2(9x+3) PLS HELP

gayaneshka [121]

Answer:

(1) $x = -4$ (2) $x = 7$

Step-by-step explanation:

From the first equation:

$2(x + 3) = x - 4\\\implies x = 2(x + 3) + 4\\\implies x = 2x + 6 + 4\\\implies x = 2x + 4\\\implies -4 = 2x - x\\\implies x = -4$

From the second equation,

$4(5x - 2) = 2(9x + 3)\\\implies 20x - 8 = 18x +6\\\implies 20x - 18x - 8 -6 = 0\\\implies 2x -14 = 0\\\implies 2x = 14\\\implies x = \frac{14}{2} = 7$

6 0

3 years ago

What is the volume of a rectangular solid that is 40 centimeters long, 10 centimeters wide, and 5 centimeters high?

Arturiano [62]

The formula for the volume of a rectangular solid is V = L*W*H

Multiply out the length, width and height given: 40*10*5 = 400*5 = 2000

The volume is 2,000 cubic centimeters

6 0

4 years ago