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3 years ago

How to graph a proportional relationship and calculate the unit rate.

Mathematics

1 answer:

poizon [28]3 years ago

7 0

Answer:

The best way to show and explain direct proportional relationships is by graphing two sets of related quantities. If the relation is proportional, the graph will form a straight line that passes through the origin.

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If R is the midpoint of PS with PR = 7x + 23 and RS= 13x-19 then find PS

Rainbow [258]

If R is the midpoint of PS, then PR = RS -- (1)

Also, PR + RS = PS -- (2)

__________________

PR + RS = PS

7x + 23 + 13x - 19 = PS

__________________

Now, PR = PS

7x + 23 = 13x - 19

7x - 13x = -19 - 23

-6x = -42

x = -42/-6

x = 7

__________________

PS = 7x + 23 + 13x - 19

PS = 7(7) + 23 + 13(7) - 19

PS = 49 + 23 + 91 - 19

PS = 144 

Hope it helps!

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

7 0

3 years ago

In the coordinate plane LJN is similar to LKM

castortr0y [4]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Kesley is thinking of a number. She says that it’s the sum of a number and nine. Multiplied by 2/3, is equal to -18.

Aliun [14]

Answer:

Only the firsts and fourth choices ( $\frac{2}{3}(x+9)=-18$ and $\frac{2}{3}x+6=-18$ )

Step-by-step explanation:

Turn the equation into words:

"A number plus 9"

$(x+9)$

"Multiplied by $\frac{2}{3}$ "

$\frac{2}{3} (x+9)$

"Is equals to -18"

$\frac{2}{3}(x+9)=-18$

Distribute to find the second equation:

$\frac{2}{3}(x+9)=-18\\\frac{2}{3}x+6=-18$

7 0

3 years ago

2(4+9w) what is the answer

EleoNora [17]

Answer:

8+18w

Step-by-step explanation:

2(4+9w)

Distribute the 2

2*4 + 2*9w

8+18w

6 0

3 years ago

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The weights of 3 puppies at one week old were 6.5 ounces, 7.3 ounces, and 6.4 ounces. If each

Elodia [21]

Answer:

The first puppy would weigh 8.6 ounces, the second puppy would weigh 9.4 ounces, and the third puppy would weigh 8.5 ounces.

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3 years ago