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Vitek1552 [10]
3 years ago
7

Solve for x 7(x - 3) = 4(x + 5)

Mathematics
2 answers:
Advocard [28]3 years ago
7 0

Answer:

13 2/3

Step-by-step explanation:

AleksAgata [21]3 years ago
3 0
1: expand the bracket by multiplying the 7(x-3) and 4(x+5)
2:take away the smallest x, which is 4x
then you’re left with
3x-21=20
3: add the -21 to the other side of = sign
you’re left with 3x=41
4: divide by 3
5: x=13.6667
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When asked to rewrite the expression (x3 + 2x? – x)-(-x3 + 2x2 + 6), Denise made a mistake. She did not get the correct answer,
DanielleElmas [232]

Answer:

She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6

Step-by-step explanation:

It looks like she didn't fully distribute the -

(x3 + 2x2 - x)-(-x3 + 2x2 + 6) :Original

x3+ 2x2 - x + x3 – 2x2 +6 :Changed

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(x3 + 2x2 - x)-(-x3 + 2x2 + 6)

x3 + 2x2 - x + x3 - 2x2 - 6

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3 0
3 years ago
What is the mixed number of 43/8
chubhunter [2.5K]
Divide by a whole number to get 40 which is 5 and then keep left over 3/8 to get mixed number of 5 3/8
4 0
3 years ago
Read 2 more answers
What are the measures of 1 and 2? 37.1 1 2 17.30 121.8°​
Lady_Fox [76]

Answer:

Option 2 : m∠1 = 67.4°, m∠2 = 104.5°

Step-by-step explanation:

Lets find the measure of angle 2 first:

180° - 17.3° - (180° - 121.8°) = Angle 2

                             ↑

             Angle of the straight line = 180°

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Angle 2 = 104.5

At this point the only answer that works is the second option, but let's still work out Angle 1

Angle 1 :

Theory of opposite angles state that the opposite angles inside a triangle = the exterior angle

in this case:

Angle 1 + 37.1 = Angle 2

Since we know angle 2 = 104.5, lets solve

Lets say angle 1 = x

x + 37.1 = 104.5

x = 104.5 - 37.1

x = 67.4

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

8 0
3 years ago
Read 2 more answers
A=h(b+c) solve for h
Gnesinka [82]

Answer:

a/(b+c)=h

Step-by-step explanation:

a=h(b+c)

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Just one step.

8 0
3 years ago
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astraxan [27]

Answer:

a

Step-by-step explanation:

8 0
2 years ago
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