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bonufazy [111]
2 years ago
12

What does x equal 7(2x+5)=4x -9 -x PLEASEEEE HELPPPP ME

Mathematics
1 answer:
Gennadij [26K]2 years ago
5 0

Answer: x=-4

Step-by-step explanation:

Given

7(2x+5)=4x-9-x

Expand parenthesis

14x+35=4x-9-x

Combine like terms

14x+35=3x-9

Subtract 35 on both sides

14x+35-35=3x-9-35

14x=3x-44

Subtract 3x on both sides

14x-3x=3x-44-3x

11x=-44

Divide 11 on both sides

11x/11=-44/11

x=-4

Hope this helps!! :)

Please let me know if you have any questions

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Help, please I need a mathswatch answer this is from the mathswatch website
torisob [31]

Answer:

158.76

Step-by-step explanation:

11.7*15.6=182.52

182.52/2=91.26

Area of BCD=91.26

7.5*18=135

135/2=67.5

Area of BAD=67.5

Altogether:

91.26+67.5=158.76

4 0
2 years ago
When calculating the area of a circle for diameter and radius is our answer going to be(example) 21 cm square???
sveticcg [70]

Answer:

yes

Step-by-step explanation:

you put answer in end

8 0
3 years ago
60 is 5 times greater than k expression
Alik [6]
60=5k 
Is the equation because the word 'is' means equals, so we add an equal sign after the 60. "Five times greater" simply means multiply so we multiply 5 and k.
Then to solve the equation, you would need to divide both sides by 5 to isolate the variable
60/5=5k/5
12=k 
I hope this helped!
6 0
2 years ago
Started at 5 degrees and rose 1/2 degrees each minute what is the slope
RoseWind [281]

Answer:

y=1/2x+5

Step-by-step explanation:

y=mx+b

m is slope so the slope is 1/2.

6 0
2 years ago
Read 2 more answers
I'd greatly appreciate the help-
dem82 [27]

Answer:

The 3rd option

Step-by-step explanation:

To prove that 2 triangles are similar, we need to prove that 2 pairs of their angle measurements are congruent.

This is because all triangles have 180 degrees, so if 2 pairs are congruent, the remaining angles will also be congruent

We know that m<D=m<E

We also know that m<DCA=m<ECB because they are vertical angles.

Vertical angles are always congruent.

Therefore, the triangles are similar.

The correct similarity statement would be 1, since <D corresponds with <E.

Now let's look at the 3rd Statement. To prove that two lines are similar, we would have to prove that their alternate interior angles are congruent.

A pair of alternate interior angles would be <D and B or or <E  and <A

There is no way to prove this, since we do not know any of the angle  or that measurements or if the triangles are isosceles triangles.

Hence, the correct choice would be 1 only.

7 0
2 years ago
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