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Ipatiy [6.2K]
3 years ago
14

X +2y= 5

Mathematics
1 answer:
Irina18 [472]3 years ago
3 0

Answer:

6

Step-by-step explanation:

subtract 3 from each side

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4/5 divided by 1 2/5
scoundrel [369]

Answer:

4/7

Step-by-step explanation:

Multiply the number by The reciprocal of 1 2/5

4/5*5/7=20/35

3 0
3 years ago
Ralph is 3 times as old as Sara. In 4 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now. Ralph's
IgorLugansk [536]
Let
R = Ralph's age
S = Sara's age

First statement is translated as:
S = 3R

Second statement is translated as:
S + 4 = 2(R + 4)

Use the first equation to be substituted into the second one in terms of R which is the one we are actually going to solve for Ralph's age.
Since S = 3R, then
3R + 4 = 2(R + 4)
3R + 4 = 2R + 8
3R - 2R = 8 - 4
R = 4 years old
7 0
3 years ago
Read 2 more answers
What is the equation for the line of reflection <br><br> A. X=6<br> B. Y=6<br> C. Y=x<br> D. Y=2
PilotLPTM [1.2K]

Answer:

x = 6

Step-by-step explanation:

The line of reflection is x = 6.

5 0
3 years ago
What is the density of an object having a mass of 25 g and a volume of 8.0 cm cubed
weqwewe [10]

Answer:

3.125 g/cm³.

Step-by-step explanation:

The formula for density/mass/volume is d = m/v, where d is density in grams per cm cubed, m is in grams, and v is in cm cubed.

In this case, m = 25 and v = 8.0.

d = 25 / 8.0

d = 25 / 8

d = 3.125.

So, the density of the object is 3.125 g/cm cubed.

Hope this helps!

6 0
3 years ago
Slope -2/3, through (-1,-6) <br><br> What is the equation of the line?
Arturiano [62]

Answer:

Step-by-step explanation:

y + 6 = -2/3(x + 1)

y + 6= -2/3x - 2/3

y + 18/3 = -2/3x - 2/3

y = -2/3x - 20/3

8 0
3 years ago
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