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mr Goodwill [35]
2 years ago
13

What is the solution to the system of equations below? y = 3x + 9 y = -3x + 12

Mathematics
2 answers:
Elena L [17]2 years ago
7 0

Answer:

21

Step-by-step explanation:

y = 3x + 9

y = -3x + 12

y=21

saul85 [17]2 years ago
6 0

Answer:

Is any of these correct?

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a race car drivers time in seconds to complete 12 laps is plotted on a graph, what is the dependent variable?
Ipatiy [6.2K]
The time it took to complete 12 laps.
The independent, however, would be the car's speed or something like that.
6 0
3 years ago
20. An amount of money was shared among five boys Ali, Juma, Musa, Khalid and Mustafa. Ali got /8 of the total amount while Juma
Nadusha1986 [10]

Answer:

x=\frac{18000}{7}=2571\frac{3}{7}

Step-by-step explanation:

Let the total amount be x

Then Ali got 1/8x With 7/8x left

Juma got 7/40x with 7/10x left

Musa, Khalid and Mustafa got 7/30x each

since \frac{7}{30}x=600

7x=18000

x=\frac{18000}{7}=2571\frac{3}{7}

3 0
1 year ago
No pic/link just type answer pls.
Aleksandr-060686 [28]
I got 4.42 hope this helps:)
7 0
3 years ago
Suppose James has a credit card with a balance of 4289 . Each month the credit card company charges 5% interest. If James pays o
topjm [15]

Answer:

<h2>4076.56</h2>

Step-by-step explanation:

First we need to calculate the James monthly charges on his balance of 4289.

Using the simple interest formula;

Simple Interest = Principal * Rate * Time/100

Principal = 4289

Rate = 5%

Time = 1 month = 1/12 year

Simple interest = 4289*5*1/12*100

Simple interest = 21,445/1200

Simple interest = 17.87

<u>If monthly charge is 17.87, yearly charge will be 12 * 17.87 = </u><u>214.44</u>

The balance on his credit card one year from now = Principal - Interest

= 4289 - 214.44

= 4076.56

The balance on his credit card one year from now will be 4076.56

5 0
3 years ago
A train leaves Boston at noon going to NYC at a speed of 60 mph. Two hours later, an express train leaves NYC going to Boston at
lana66690 [7]

Train A: Speed of 60 mph. (1 mile per minute)

Train B: Speed of 90 mph. (1.5 miles per minute)

after 2 hours: (2:00)

Train A has gone 120 miles. (half-way mark)

Train B has gone 0 miles.

Hour 2:48: (2:48)

Train A has gone 168 miles.

Train B has gone 72 miles.

72 ----><---------------168

At 2:48 P.M the two will meet. 72+168=240

I hope this helps! :)

4 0
2 years ago
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