2 years ago

5(x-3)=3x+5 (solve for x)

Mathematics

1 answer:

OverLord2011 [107]2 years ago

7 0

Answer:

5x-15=3x+5

5x-3x=5+15

2x=20

x=20/2

x=10

Step-by-step explanation:

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In a survey of students , every student studies at least one of the three subjects Maths English and Science . The number of stu

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Step-by-step explanation:

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Solve proportion for x 3/2x+5 = 1/9x A. 1/5 B. 1/2 C.5/3 D.16/5

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I know this but I can't remember how to do the process.

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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

6 months ago

Given m ||n, find the value of x. t (x-17) (5x-1) >m >

Oxana [17]

Answer:

(x-17)

Step-by-step explanation:

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2 years ago

Need help asap!! !! !!

garri49 [273]

Answer:

Step-by-step explanation:

since U is the midpoint of QT, QT = 2(QU)

similarly, QS = 2 (QR)

because QR is parallel to QS and QU is parallel to QT, triangle QUR is similar to triangle QTS. therefore, the scaling factor between QT/QU and QS/QR is equal to the scaling factor between RU and ST.

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