Search 74,797 tutors

## Gwen R.'s Resources

Each mat has an area of 22x18 which is 396 square incles

Ratio of Perimeters is 2/5 Ratio of areas is4/25

24/36 is the scale factor. Simplify to 2/3   Ratio of areas is 4/9

1600 contains 160 \$10 dollar bills.  Take \$3 out of each.  160 x 3 = 480    So he took a total of \$480 to divide among 4 employees, so each got \$160

All you know the the length of the sides of the triangle so you need to use Heron’s Formula which is a method for calculating the area of a triangle when you know the lengths of all three sides but not the height.    A = √p(p-a)(p-b)(p-c) where p is half the perimeter...

I assume you mean slope is -? and coordinate (-3,8) the equation is y =-2x/3 + b        substitute   8 =6/3 +b   24 = 6 +3b   18=3b   b=6   The y-intercept is 6      ...

The units used are feet.   Pythagoras says x2 + x2 +6x+9 = 4x2 - 12x+9  so let's simplify that.   0=2x2 -18x     factor and use the zero product property   0=2x(x-9)   x=0 or x=9    eliminate x=0 because...

-20 is the slope of the function.   It seems that for every hour of playing video games you lose 20 hours of "homework focus" whatever that is!

63 = 216 43 = 64            substitute   216x3 - 64 = (6x)3-(4)3   a3- b3 = (a-b)(a2+ ab + b2)   (6x-4)(36X2 +24X +16)            ...

Boyle's Law says in a closed system the pressure exerted by a given mass of gas is inversely proportional to the volume if the temperature stays the same.  PV=k  or   PV=P1V1    The variables are pressure and volume.

Either (2x+1) is negative        Or        (2x+1) is positive   2x+1<0                                           2x+1>0   2x<-1...

You can distribute or use FOIL (First, Outer, Inner Last)         x + 2         x + 2               2x + 4 x2+2x        x2 +4x +4     answer     (x...

Slope is change in y over change in x. Look at the two points;   P1 has a y-value of  -4 P2 has a y-value of +4   The change in y is 8 units!  Think: what's the difference between -4 and +4?   Or, thing what's the distance on the number...

Intercept is like intersection; the point where streets cross, or where lines cross. The axes are lines also.    The x- intercept is the value of x in the point (x,0)       The y- intercept is the value of y in that point (0,y)   Think about what...

Isosceles right triangle has area 5400 sq ft   Sides are in the ratio 1:1:√2   Let x be the length of a side. The altitude is x√3   5400 =    ½ (x)(x√3)   2700/(√3

Circular Pizza had 14 in diameter or 7 in radius Area = π (7)2   = 153.93 sq in   30.8 sq/in  is how much each of the 5 people get

Use a Venn diagram One circle is labeled cars with automatic transmissions, the other circle is labeled cars with bucket seats. the region common to both circles is called the intersection.   Let x be the number of cars in the intersection   34-x=12 x=22 So...

Let l be the longer leg, then the shortest leg will be l-1 Use the Pythagorean Theorem: the hypotenuse of a right triangle equals the sum of the sides squared   l2  +  (l-1)2   =  (l +1)2    l2   +  l2 - 2l  +1...

Let w be the width Then the length is 3w -13 A +(3w-13)W 56=3w2 -13w 0=3w2 -13w -56 0= (3w +8 )(w-7) w-7 =0      0r          3w +8=0        w=7            ...

Let c be the cost of a cheeseburger, and l be the cost of a cup of lemonade in dollars. 3c+2l =  14     Multiply each term by 2               6c+4l    =  28 2c +4l = 12     Multiply each term by (-3)  ...