3 years ago

Solve the system by substitution...

Mathematics

1 answer:

Nataly_w [17]3 years ago

6 0

Answer: 14

Step-by-step :x +3 y = 15 , 2 x -y =14

but let me know if it's right ok

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Points q, r, s, t, are plotted on the number line below<br><br><br><br>

vodomira [7]

Answer:

Step-by-step explanation:

must be r and s

because right at in middle of the distance between them is 0

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3 years ago

An arrow is shot vertically upward at a rate of 210 feet per second. Use the projectile formula h = −16t2 + v0t to determine at

Klio2033 [76]

Answer:

Time equal to 3.30 seconds when the arrow was going up.

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Step-by-step explanation:

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3 years ago

Find the value of questions

Zolol [24]

Answer:

The simplified expression is:

$\frac{3^9y}{2\times \:81}=\frac{243y}{2}$

Step-by-step explanation:

Given the expression

$\frac{3^9\times \:y}{2\times 81}$

solving the expression

$\frac{3^9\times \:y}{2\times 81}=\frac{3^9y}{162}$

$=\frac{3^9y}{3^4\times \:2}$ ∵ $162=3^4\times \:2$

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$=\frac{243y}{2}$ ∵ $3^5=243$

Therefore, the simplified expression is:

$\frac{3^9y}{2\times \:81}=\frac{243y}{2}$

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3 years ago

A class has 25 students in it. 4 students drop the class. What is a reasonable estimate for the percentage of students that drop

Angelina_Jolie [31]

Answer:

16% drop

Step-by-step explanation:

4/25 drop

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16/100

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3 years ago

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