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shutvik [7]
2 years ago
8

The solution to -2x/3+7<15 is the set

Mathematics
1 answer:
svlad2 [7]2 years ago
5 0

Answer:

1)  x > -12

Step-by-step explanation:

first, subtract 7 from each side of the inequality to get:

-2/3x < 8

multiply each side by the reciprocal of -2/3 which is -3/2 to get:

x > -24/2

notice the symbol has been reversed because that is the rule whenever you multiply or divide an equality be a negative value

simplified, answer is x > -12

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Selma spent 1/10 of her allowance on a new backpack. What percent of her allowance did she spend?
katen-ka-za [31]

Answer:

10%

Step-by-step explanation:

1 thank for me=2 thanks for you

5 star rating=3 thanks for you

brainliest for me=5 thanks for you

5 0
3 years ago
I need 3 4 and 5 ill mark you brainiest
AysviL [449]

Answer:

3) x=4      4)x = 9     5) x=5

Step-by-step explanation:

3) first you have to find the inside of the angle. A straight line = 180*

180-(19x+3) = 177-19x

Than you add all the angles up to equal 180.

(177 - 19x) + (11x-2) + (9x+1) = 180

if you simplify this x = 4. You can check your answer by subbing in for x.

4)first you have to find the inside of the angle. A straight line = 180*

180- (17x-23) = 203-17x

Than add the sides up to equal 180. keep in mind there are 2 of the same angles.

(203-17x)+(7x+2)(2) = 180

Simplify

x=9

5) 180-151=29* this is the inner angle.

(11x-1)+(20x-3)+29=180

31x+25=180

x=5

6 0
4 years ago
Read 2 more answers
3pt=_____ centimeters                          40oz=___________lb
deff fn [24]
Not sure what pt means
the other unts are all liquid measures and cm is a measure in legnth 


8oz=1 pound so 
40/8=pound=5
40oz=5lb

1000ml=L
1500/1000=1.5L
1500ml=1.5L

1L=1.056qt
1.056 times 12=12.68
12L=12.68qt

5 0
3 years ago
Which expression is equivalent to 2cos^2(x/2)- cos(x)?<br> Edge 2020
olchik [2.2K]

Given:

The expression is

2\cos^2(\dfrac{x}{2})-\cos (x)

To find:

The expression which is equivalent to the given expression.

Solution:

We have,

2\cos^2(\dfrac{x}{2})-\cos (x)

We know that,

\cos x=2\cos^2 (\dfrac{x}{2})-1

Using this formula, the given expression can be written as

2\cos^2(\dfrac{x}{2})-\left(2\cos^2(\dfrac{x}{2})-1\right)

=2\cos^2(\dfrac{x}{2})-2\cos^2(\dfrac{x}{2})+1

=1

Therefore, the given expression is equivalent to 1.

4 0
3 years ago
What is the solution for xin the equation?<br> 4x-3 + 5 = 2x + 7 - 8x
Greeley [361]

Answer:

x = 1/2

Step-by-step explanation:

4x-3 + 5 = 2x + 7 - 8x

Combine like terms

4x +2 = 7-6x

Add 6x to each side

4x+2+6x = 7-6x+6x

10x+2 = 7

Subtract 2 from each side

10x+2-2 = 7-2

10x = 5

Divide by 10

10x/10 = 5/10

x = 1/2

7 0
3 years ago
Read 2 more answers
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