2 years ago

Need help no links please

Mathematics

1 answer:

Sveta_85 [38]2 years ago

4 0

Answer:

(2x + 6)/3 = y

Step-by-step explanation:

2x + 5 = 3y - 1

2x + 5 + 1 = 3y

(2x +6)/3 = 3y

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phillip bought 12 used cds and dvds.cds cost $2 each,and dvds cost $3 each.he spent $31,not including tax.how many dvds did phil

inessss [21]

Let c and d be the number of cds and dvds respectively.

c+d=12

c=12-d

The we are told that:

2c+3d=31, using c found above in this equation gives you:

2(12-d)+3d=31

24-2d+3d=31

24+d=31

d=7

So Phillip bought 7 dvds.

check...

3*7+2(12-7)=31

21+2(5)=31

21+10=31

31=31

8 0

3 years ago

Q8: These Triangles are similar. What is the value of X?

Umnica [9.8K]

Answer:

The answer to your question is x = 15

Step-by-step explanation:

Use proportions to solve this problem

$\frac{x}{20} = \frac{12}{16}$

Solve for "x"

x = $\frac{12(20)}{16}$

Simplification

x = $\frac{240}{16}$

Result

x = 15

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3 years ago

A kite is flying at a vertical of 65 meters. It's string is attached to the ground at a 31 degree angle with the ground. How lon

Simora [160]

Answer:

70 and 30

Step-by-step explanation:

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2 years ago

What is the equation of the midline of the function f(x) = 5.6sin (2.6x - 4.2) - 9.1?

Iteru [2.4K]

Answer:

$f(x) = -9.1$

Step-by-step explanation:

The midline is set on $f(x) = -9.1$ , when the sine function is equal to zero, eliminating the effect from amplitude. The midline is a horizontal line. Hence, the equation of the midline is:

$f(x) = -9.1$

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3 years ago

What’s another fraction for 4/10

kaheart [24]

Answer:

another fractioon for 4/10 would be 2/5 or 8/20

Step-by-step explanation:

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2 years ago

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