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attashe74 [19]
3 years ago
7

Cindy can read in different amounts of time 10 pages in 8minutes, 15 pages in 12 minutes and 25 pages in 20 minutes what is the

constant of proportionality?
Mathematics
1 answer:
babunello [35]3 years ago
5 0

Answer:

5/4

Step-by-step explanation:

10/8 = 5/4

15/12 = 5/4

25/20 = 5/4

They all simplify to 5/4.

Hope this helps!

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Select from the value that correctly completes the sentence. The value of x is​
posledela

Step-by-step explanation:

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3 0
2 years ago
What is the solution of the system?
Kryger [21]
Greetings!

Solve the System, using Elimination:
\left \{ {{4x+2y=18} \atop {2x+3y=15}} \right.

Multiply Equation #2 by 2:
\left \{ {{4x+2y=18} \atop {2(2x+3y)=2(15)}} \right.

\left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.

Eliminate variable x:
-\frac{ \left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.}{0x-4y=-12}

4y=-12

Divide both sides by 4:
\frac{4y}{4}= \frac{12}{4}

y=3

Input this value into one of the Equations: 
4x+2y=18

4x+2(3)=18

Simplify:
4x+6=18

(4x+6)+(-6)=(18)+(-6)

4x=12

Divide both sides by 4.
\frac{4x}{4}= \frac{12}{4}

x=3

The Solution to this System (The Point of Intersection):
\boxed{(3,3)}

I hope this helped!
-Benjamin
7 0
3 years ago
Zoe babysat for x+3 hours yesterday.she earned x-2 dollars per hour.write a polynomial expression that represents the amount Zoe
vekshin1

Answer:

y=3x+2

Step-by-step explanation:


5 0
3 years ago
Gabe runs 6.23 miles each day. How many miles does have run in 100 days
Ray Of Light [21]

Answer:

623 miles

Step-by-step explanation:

6.23*100= 623 miles

4 0
3 years ago
Read 2 more answers
What is 546 divided by 25 in long division
Phantasy [73]
    ·_21.21
25l546.     25 goes into 54 twice with a remainder of 4
    l50↓
    -----
    l 46      25 goes into 46 once with 21 left
    l 25
   ------
      21
8 0
3 years ago
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