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Veronika [31]
3 years ago
13

4(2y+3)-2*2. Y=3 Pls help

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

4(2×3+3)-2×2

4(9)-4

36-4

32

jeka57 [31]3 years ago
7 0

Answer:

Hi! The correct answer is 32!

Step-by-step explanation:

Simplify the expression.

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Alex has a bag of marbles. Each marble is red, blue, or yellow , and the ratio of the red to blue to yellow marbles is 6:10:15.
lesantik [10]

Answer:

There are 150 blue marbles in Alex's bag.

Step-by-step explanation:

Let x, y, z be the quantities of red, blue and yellow marbles, respectively. From statement we derive three rational equations for initial and final ratios:

Initial ratio

\frac{x}{y} = \frac{6}{10} (1)

\frac{y}{z} =  \frac{10}{15} (2)

Final ratio

\frac{x + 10}{z - 25} = \frac{1}{2} (3)

After some algebraic handling we get the following system of linear equations:

x - \frac{3}{5}\cdot y = 0 (1)

y - \frac{2}{3}\cdot z = 0 (2)

2\cdot (x + 10) = z - 25

2\cdot x +20 = z - 25

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The solution of the system of linear equations is:

x = 90, y = 150, z = 225

There are 150 blue marbles in Alex's bag.

5 0
3 years ago
the congruent sides of an isosceles triangle are each one unit longer than the length of the shortest side of the triangle the p
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What is the answer to −45÷(−9)×(−6)
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The answer is -30 (from calculator)
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