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svp [43]
3 years ago
12

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

4 0
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.

Time equal to 7.94 seconds when the arrow was going down.

Step-by-step explanation:

Trust me

7 0
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      

        =\frac{3^5y}{2}                   ∵   \mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}

       =\frac{243y}{2}                  ∵    3^5=243

Therefore, the simplified expression is:

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

6 0
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

Multiply by 4/4

16/100

16% drop

4 0
3 years ago
Read 2 more answers
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andreyandreev [35.5K]
If you divide the 24 delivery vans into 8 groups that means the truck dealer sells 8 trucks
3 0
3 years ago
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