3 years ago

Please help ill rate brainliest!Given that line QT is a median of triangle QRS, find RS.

1 answer:

4 0

T is the midpoint of the side RS, therefore the segments RT and TS have the same size.
Therefore:
RT=TS
3x+3=7x-5

we have to solve this equation: 3x+3=7x-5 to find the value of "x"

3x+3=7x-5
3x-7x=-3-5
-4x=-8
x=-8/-4
x=2

We calculate the distance of RT and TS
RT=3x+3=3(2)+3=6+3=9
TS=7x-5=7(2)-5=14-5=9

We calculate the distance of RS:
RS=RT+TS=9+9=18 u

Answer: the length of RS is 18 u

You might be interested in

A map scale is 1 cm :50Km.Two cities are 3.8cm apart .How many kilometers is it from on e city to the other

Gennadij [26K]

So what you do is you want to multiply
3.8 × 50=190km

6 0

4 years ago

A Train travels at an average rate of 40 miles per hour and travels 110 miles and create an equation. the equation is 40/1 = 110

ruslelena [56]

It would take (2 hours and 45 min) for the train to travel this far

Hope this helps.

6 0

4 years ago

Help Please & thanks!

Travka [436]

Answer:

14 out of the total class of 35 are boys

Step-by-step explanation:

35 / 5 = 7

7 * 2 = 14

3 0

3 years ago

Write y = 2x + 3 using function notation.

Setler79 [48]

F(x) = 2x + 3 i think

7 0

4 years ago

Read 2 more answers

To mix plaster for a dental model, 35 mL of water is used for 100g of plaster. How many mL of water should be used for 250g of p

laila [671]

Okay, here we have this:

Considering the provided information, we are going to calculate the requested value, so we obtain the following rule of three:

$\begin{gathered} \frac{x}{35mL\text{ of water}}=\frac{250g\text{ of plaster}}{100g\text{ of plaster}} \\ x=\frac{250g\text{ of plaster}}{100g\text{ of plaster}}\cdot35mL\text{ of water} \end{gathered}$

Solving for x:

$\begin{gathered} x=2.5\cdot35mL\text{ of water} \\ x=87.5mL\text{ of water} \end{gathered}$

Finally we obtain that 87.5mL of water should be used for 250g of plaster.

3 0

1 year ago