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Salsk061 [2.6K]
3 years ago
12

2x + 3v= 13 4x-V= -2 Solve the simultaneous equations

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
4 0

Answer:10

Step-by-step explanation:

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Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much
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Answer:

$10 coins: 21

$20 coins: 24

Step-by-step explanation:

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So we can create 2 equations where

x = number of $10 coins

y = number of $20 coins:

x + y = 45

10x + 20y = 690

we can move equation 1 around so that we can get a value of x

x = 45 - y

now we can substitute x into the second equation

10(45 - y) + 20y = 690

450 - 10y + 20y = 690

10y = 240

y = 24

Now plug in y back into the first equation

x = 45 - y

x = 45 - 24

x = 21

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3 years ago
A bag contains 8 blue coins and 6 red coins. A coin is removed at random and replaced. This happens three times. What is the pro
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Answer:

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3 years ago
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3 years ago
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Ilang metro ang 1300 sentimetro?<br><br>a. 1metro<br>b. 13 metro<br>c. 130 metro​
Pie

Answer:

1300 cm = 13 m

Step-by-step explanation:

We need to find meters in 1300 cm.

We know that,

1 m = 100 cm

1 cm = (1/100) m

It means,

1300\ cm=\dfrac{1300}{100}\ m\\\\=13\ m

Hence, there are 13 m in 1300 cm.

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Each friend will have 4 cookies.
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