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Snezhnost [94]
3 years ago
12

​3x-2≤5(x+2) . show all steps please.

Mathematics
2 answers:
Alla [95]3 years ago
5 0

Answer:

Step-by-step explanation:

You have to first use the distributive property of 5(x+2)

That would be 5x+10.

So it would be all together

3x-2\leq 5x+2

to see if it is true

x=2

6-2

6-2\leq 10+2\\4\leq 12

it is true

Natasha_Volkova [10]3 years ago
3 0

Answer:

-6 ≤x

Step-by-step explanation:

3x-2≤5(x+2)

Distribute

3x-2≤5x+10

Subtract 3x

3x-2-3x≤5x +10-3x  

-2 ≤2x+10

Subtract 10 from each side

-2-10 ≤2x+10-10

-12 ≤2x

Divide by 2

-12/2≤2x/2

-6 ≤x

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The answer is A. they quickly illustrate measure of center. and C. they show trends in data that can be compared.

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2 years ago
Which snows the decimals 43.6,41.92and 43.71 greatest to least?
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8 0
3 years ago
Read 2 more answers
WILL MARK YOU BRAINLIEST, PLEASE HELP!!!
lutik1710 [3]

Given:ABCD is a rhombus.

To prove:DE congruent to BE.

In rombus, we know opposite angle are equal.

so, angle DCB = angle BAD

SINCE, ANGLE DCB= BAD

SO, In triangle DCA

angle DCA=angle DAC

similarly, In triangle ABC

angle BAC=angle BCA

since angle BCD=angle BAD

Therefore, angle DAC =angle CAB

so, opposite sides of equal angle are always equal.

so,sides DC=BC

Now, In triangle DEC and in triangle BEC

1. .DC=BC (from above)............(S)

2ANGLE CED=ANGLE CEB (DC=BC)....(A)

3.CE=CE (common sides)(S)

Therefore,DE is congruent to BE (from S.A.S axiom)

7 0
3 years ago
Hannah has $3.10 in her piggy bank in nickels and quarters. If there are 22 coins in her piggy bank, how many are nickels and ho
PIT_PIT [208]

Answer:

12\ nickel

10\ quarter

Step-by-step explanation:

we know that

1\ nickel=\$0.05

1\ quarter=\$0.25

Let

x------> the number of nickel coins

y-----> the number of quarter coins

we know that

x+y=22

x=22-y -----> equation A

0.05x+0.25y=3.10 ----> multiply by 100 both sides

5x+25y=310 -----> equation B

Substitute equation A in equation B and solve for y

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7 0
3 years ago
What are the coordinates of the Image of point M under a Reflection across the y-axis?
dexar [7]

Answer:

(C)

Step-by-step explanation:

Reflection Rule for the Y-Axis:

(x,y) \rightarrow(-x,y)

Using the mapping rule and Point M:

(2,-1) \rightarrow (-2,-1)

\text {M' is: } (-2,-1)

The correct option should be C.

8 0
3 years ago
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