Need help with this 4, 5, 6

the perimeter of a rectangular parking lot is 306 M if the length of the parking lot is 82 M what is its width

salantis [7]

Answer:

71 M

Step-by-step explanation:

to find the perimeter you need to add up all the sides (length and width)

in this case they already gave you the perimeter: 306

and the length: 82

there are two sides that are the length so you need to do 82x2 which is 164

now you need to subtract 306-164=142

142 is the sum of the two width but its asking for only one side so 142 divided by 2 is 71

4 0

3 years ago

explain how reading the digits ro the right of the decimal point and knowing the name of the least place value help yoi read a d

AVprozaik [17]

Chicken sandwich with my baby and my grandma is a little too much to do and I wanna was a way better then you got a baby and stuff and I wanna just like a

7 0

3 years ago

3x - 3y = 9 and x + 3y = 12 <br> Elimination

Firlakuza [10]

Answer:

$x=5.25,y=2.25$

Step-by-step explanation:

We can add the two equations to eliminate the variable $y$ and solve for $x$ :

$3x-3y+x+3y=9+12$

$4x=21$

$x=5.25$

Now, we can use substitution to solve for $y$ :

$x+3y=12$ (given)

$5.25+3y=12$

$3y=12-5.25$

$=6.75$

$y=2.25$

Hope this helps :)

8 0

3 years ago

Pls help meh get the right answer and i'll give you more coins. teehee.

kotegsom [21]

Answer:

this is what i thought of

Step-2. Rate of change, or slope, is the change in y over change in x. Remember that a point is given in (x, y). Also that you need two points to find the change.

If you have two points, (x1, y1) and (x2, y2), the rate of change or slope would be

.

In your problem, the given points are (0, -1) and (2, -11).

Using the formula for rate of change, the rate of change would be:

.

The "initial value" is the y-intercept - where the graph intersects the y-axis and also where x = 0. The given point (0, -1) has x = 0, so the initial value is -1.

4. Remember the model equation for a graph of a line is

y = mx + b,

where m is slope and b is y-intercept - where the graph intersects the y-axis and also where x = 0.

The x-axis of the graph would be number of weeks, since it is independent.

The y-axis of the graph would be how much money she has.

Since she starts (at 0 weeks) at $25, the first point would be (0, 25). Notice here that it is the y-intercept since x = 0. The value of b in the model equation of a line y = mx + b would be 25.

The rate of change, or slope, is $5/week. This is m in the model equation of a line y = mx + b.

Putting b = 25 and m = 5 into the model equation y = mx + b (remember we use this equation because it works for all lines), the equation would be

y = 5x + 25.

4.

The slope of this will be -0.5degrees/hr, or just -0.5 if it is used as m in the

y = mx+b equation. The slope is negative because it "decreases".

5.

Plot each point and connect the dots. Remember the first number corresponds to the x-axis and the second to the y-axis.

For example in the table for x = -2 and y = -6, the point is (-2, -6), and from the origin (0,0) you go left 2 on the x-axis and down 6 to plot the point.

9.

I think you can do this if you can do #3, but now you have to find b by plugging in given values.

y = mx + b

y = 1212x + b

We can plug in the given point (3,1) to find b.

1 = 1212(3) + b

b = -3625

y = 1212 - 3625

10. Don't know which function you are referring to.

The slope is $10/week, or m = 10.

A point is (4, 90) because "After 4 weeks, Roberta has $90."

The y-intercept is 50 because x (weeks) = 0 at that time.

y = mx + b

y = 10x + 50

4 0

3 years ago

Read 2 more answers

Eye Color Each of two parents has the genotype brown>blue, which consists of the pair of alleles that determine eye color, an

dalvyx [7]

Answer:

A) Brown-Brown ,Brown-Blue, Blue-Brown, Blue-Blue B) 1/4 =0,25 C)3/4=0,75

Step-by-step explanation:

Lets mother's "BROWN" is "BROWN-M",

mother's "BLUE" is " BLUE-M"

Lets father's "BROWN" is "BROWN-F" and

father's "BLUE " is "BLUE-F"

The kid can have the genotype as follows (list of possible outcomes) :

1. BROWN-M>BROWN-F ( received BROWN as from mother as from father)

2. BROWN-M>BLUE-F ( Received BROWN from mother and BLUE from father)

3. BLUE-M>BROWN-F ( Received BLUE from mother and Brown from father)

4. BLUE-M>BLUE-F ( Received BLUE as from mother as from father)

b) As we can see in a) only 1 outcome from 4 is BLUE-BLUE. So the probability of BLUE-BLUE genotype is

P(BLUE>BLUE)=1/4=0.25

c) As we know that if the child has at least one brown allele, that color will dominate and the eyes will be brown.

It means that outcomes BROWN-BROWN, BROWN-BLUE and BLUE-BROWN determine brown color of eye. So the number of these outcomes is 3. Total amount of outcomes is 4.

So probability that eyes are brown is P(Brown eyes)=3/4 =0.75

6 0

3 years ago