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arsen [322]
2 years ago
3

1.2x - 2 = 7 + 0.9x​

Mathematics
2 answers:
steposvetlana [31]2 years ago
6 0

Answer:

Step-by-step explanation:

1.2x-2=7+.9x

Add 2 to 9 which changes the equation to 1.2x=9+.9x

Next subtract .9x from 1.2x

Ur equation should now be .3x=9

Divide

X=30

frozen [14]2 years ago
3 0

Answer:

x = 30

Step-by-step explanation:

1.2x - 2 = 7 + 0.9x​    collect like terms over both sides

0.3x = 9   divide both sides by 0.3

x = 30

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6q + 9 ≤ 9 and 6q + 9 ≥ −9
Ilya [14]
Hello there!

6q + 9 ≤ 9

Start by subtracting 9 from both sides

6q + 9 - 9 ≤ 9 - 9

6q ≤ 0

Then divide both sides by 6

6q/6 ≤ 0/6

q ≤ 0

--------------

The second equation
6q + 9 ≥ -9

Start by subtracting 9 from both sides

6q + 9  - 9 ≥ -9 - 9

6q ≥ -18

Divide both sides by 6

6q/6 ≥ -18/6

q ≥ -3


Good luck with your studies!
7 0
2 years ago
Read 2 more answers
How many multiples of 2 are there between 99 and 999?
agasfer [191]

Answer:

Step-by-step explanation:

The multiples of numbers calculator will find 100 multiples of a positive integer. For example, the multiples of 3 are calculated 3x1, 3x2, 3x3, 3x4, 3x5, etc., which equal 3, 6, 9, 12, 15, etc. You can designate a minimum value to generate multiples greater than a number.

7 0
2 years ago
O is the centre of the circle, EF is a tangent, angle BCE=28 degrees, angle ACD=31 degrees.
Yuki888 [10]

Answer:

a. 28˚

b. 76˚

c. 104˚

d. 56˚

Step-by-step explanation

a. because angle between tangent and chord is equal to the angle(s) in alternate segment.

b. because angles in triangles add up to 180˚, 180-28=152 and because isosceles triangle, 152/2=76˚

c. because angles in triangles add up to 180˚ and opposite angles in a cyclic quadrilateral add up to 180˚, 31+76=107, 180-107=73, 73-28=45, angles in triangle so 180-(31+45)=104˚

d. 28*2=56˚ because angles at circumference are half angles at centre

4 0
2 years ago
Sasha solved an equation, as shown below: Step 1: 8x = 56 Step 2: x = 56 – 8 Step 3: x = 48 Part A: Is Sasha's solution correct
bekas [8.4K]
Incorrect, she should have divided both sides by 8. The answer should be x=7. There is only 1 solution to the equation because x is raised to the first degree. It is not a polynomial equation so there won't be more than 1 answer to the equation.
4 0
2 years ago
A bicyclist travels at a constant speed of 12 miles per hour for a total of 45 minutes. Use set notations for the domain and ran
Mama L [17]

A bicyclist travels at a constant speed of 12 miles per hour for a total of 45 minutes

Domain x is number of hours

Range y is distance traveled

speed = 12 miles per hour

time = 45 minutes = \frac{45}{60} = 0.75 hours

We know distance formula

Distance = speed * time

Distance = 12 * 0.75= 9 miles

Number of hours x is 0 to 0.75 hours

So domain is { x | 0}

Distance is 0 to 9 miles

So range is { x | 0}

5 0
2 years ago
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