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xxTIMURxx [149]
3 years ago
10

Which is the value of x in the equation 5x= 15

Mathematics
2 answers:
zmey [24]3 years ago
8 0
The value of x is 3.

In order to get this answer, you need to isolate the x. You do this by simply dividing both sides by 5. Dividing 5x by 5 will result In x and dividing 15 by 5 will result in 3. Therefore, x = 3
MatroZZZ [7]3 years ago
7 0
It is 3 because you take 5 times 3 and it equals 15
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What Is k 5(3-2k)=2k+39​
Hatshy [7]

Answer:

k = -2.

Step-by-step explanation:

5(3 - 2k) = 2k + 39     Distribute the 5 over the parentheses:

15 - 10k = 2k + 39

15 - 39 = 2k + 10k

12k = -24

k = -2.

8 0
3 years ago
a ferry shuttles people from one side of a river to the other. the speed of the ferry is still water is 25 mi/h. the river flows
Anarel [89]

Answer:

The Terry's resultant speed is 27mi/h

Direction of ferry=20°

Step-by-step explanation:

(-25,0) + ( 0, 9)= (-25, -9) is the vector representing the movement of the ferry

Speed of ferry = sqrt[(-25)^2 + (-9)^2]

Speed= sqrt (-625 + (-81))

Speed= sqrt(-706)

Speed=26.57mi/h

Nearest tenth,speed= 27mi/h

Tanz° = (-9/-25)

Tanz°= 0.36

Z°= tan^-1 0.36

Z= 19.80°

Nearest tenth,z=20°

7 0
3 years ago
Given a point A(-2,5), find the coordinates of a point B so that the line segment AB has each slope.
Kaylis [27]

Step-by-step explanation:

I understand this that we need to find a point B for each of a) to f).

remember, the slope is the (y coordinate difference / x coordinate difference) when going from one point on the line to the other.

a)

the slope 2/3 means that when going to B x has to increase by 3, and y has to increase by 2.

so, B = (-2 + 3, 5 + 2) = (1, 7)

b)

-2/3 means that either x or y have to decrease and the other to increase.

e.g. x increases by 3, y decreases by 2.

so, B = (-2 + 3, 5 - 2) = (1, 3)

c)

4 stands for 4/1.

so, x increases by 1, y increases by 4.

B = (-2 + 1, 5 + 4) = (-1, 9)

d)

similar to c) -3 stands for -3/1.

and similar to b) either x or y has to decrease and the other to increase.

e.g. x increases by 1, y decreases by 3.

B = (-2 + 1, 5 - 3) = (-1, 2)

e)

that means the y difference is 0. B has the same y coordinate.

e.g. B = (3, 5)

x can be any value.

the line is a horizontal line going through y = 5 or (0, 5) on the y-axis.

f)

that means the x difference is 0. B has the same x coordinate.

e.g. B = (-2, 9)

y can be any value.

the line is a vertical line going through x = -2 or (-2, 0) on the x-axis.

8 0
1 year ago
Heyyy.... can someone help plz thx
blagie [28]

Answer:

When a point gets reflected across the x-axis, the sign of its y-coordinate changes so the coordinates of Q' are (3, 4).

4 0
3 years ago
Read 2 more answers
What is the surface area of a rectangular prism that has a length of 9 feet a width of 5 feet and a height of 7.5 feet
lukranit [14]

Answer:

300

Step-by-step explanation:

find the sum of area of all sides

6 0
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