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Evgesh-ka [11]
3 years ago
6

What is the value of x? Enter your answer in the box.

Mathematics
2 answers:
creativ13 [48]3 years ago
5 0
(10x-20)= (6x+8) subtract 6 from each side
(4x-20)=(+8) add 20 to each side
(4x)=(28) divide both sides by 4
x= 7
AlekseyPX3 years ago
4 0

10x-20 = 6x+8

10x = 6x+28

4x = 28

x = 28/4

x = 7

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Y varies directly with x. If y=25 when x=5, find y when x =-4<br><br>y =​
alina1380 [7]

Answer:

y = -20

Step-by-step explanation:

Given that y varies directly with x it means changing x will also cause change in y

Mathematically it can be written as:

y∝x

Removing the proportionality symbol

y = kx

Given y=25 when x=5 Putting the values

25 = k(5)\\k = \frac{25}{5}\\k = 5

Now

y = 5x

We have to find the value of y when x = -4

Putting x=-4

y = 5(-4)\\y = -20

Hence,,

y = -20

7 0
2 years ago
Lena has 32 pens. 3/4 of the pens are blue. How many blue pens does Lena have?
melomori [17]

Answer:

<u><em>24 pens are blue</em></u>

Step-by-step explanation:

32 pens in total and 3/4 of it are blue.

32 ÷ 4 = 8

8 × 3 = 24

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8 0
3 years ago
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An aquarium owns 8 identical tanks. All together, the tanks can hold 90.2 gallons of water. How much water can each tank hold?
kobusy [5.1K]
11.275 gallons in each tank. 
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3 years ago
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Quadrilateral ABCD is transformed according to the rule (x, y) → (y, –x). Which is another way to state the transformation?
scoray [572]
The answer
there is no more explanation about this question, the solution can be found easily by applying the rule of transformation of rotation

for example, the properties of rotation transformation are:
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A 180° rotation ( 1/2 turn) clockwise or anticlockwise about theorigin changes the point (x; y) to (-x;-y).
A 270° rotation ( 3/4 turn) anticlockwise changes about the originthe point (x; y) to (y;-x).
 so the answer is 
<span>R0, 270°</span>
4 0
3 years ago
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Solve pls. dont mind the one i circled ! ty!!!
9966 [12]

Answer:

The answer is B.

Step-by-step explanation:

If this is wrong im very very sorry!

A brainlist would be appreciated! I'm almost an expert!

8 0
2 years ago
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