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harina [27]
3 years ago
9

Solve 3(2x - 5) = 9(10 - x)

Mathematics
2 answers:
alisha [4.7K]3 years ago
4 0

Answer:

x=7

Step-by-step explanation:

3(2x - 5) = 9(10 - x)

6x-15=90-9x

6x+9x=90+15

15x=105

x=7

Helen [10]3 years ago
3 0

Answer:

x = 7

Step-by-step explanation:

First, we need to expand the brackets:

3(2x-5)=9(10-x) (equation given)

6x-15=90-9x

15x -15 = 90 (add 9x on both sides)

15x = 105 (add 15 on both sides)

x = 7 (divide by 15 on both sides)

Hope this helps :)

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In triangle ABC, angle C is a right angle and BC=5. If measure of angle B = 30 degrees, find AC
Nina [5.8K]
Answer = d

using the 30 - 60 - 90 triangle theorem

side across from the angle

across from angle 30 is x
across from angle 60 is x rad. 3
across from 90 is 2x

BC is across from angle 60
so BC is the x rad 3
set the given measurement equal to it

x sqrt 3 = 5
÷ sqrt 3 ÷ sqrt 3
x = (5/ sqrt 3)
multiply top and bottom by the radical to get rid of the radical in the bottom

x = (5/ sqrt 3) × (sqrt 3/sqrt 3)
x = 5 sqrt 3/ 3

since side BC is x
BC = 5 sqrt 3/ 3

* Drawing the triangle diagram would help*
5 0
3 years ago
Read 2 more answers
joe earns R25 per hour working at a pizza shop. How much will he earn over a weekend of two shifts, each six hours long​
NeX [460]

Answer:

R300

Step-by-step explanation:

<u>To solve:</u>

  • Multiply 25 by 6 to represent the earnings of a shift.
  • Multiply the shift earnings by 2 to represent how much he earned over the weekend.

<u>Multiply</u><u> </u><u>25 by 6:</u>

25 \times 6 = 150

<u>Multiply 150 by 2:</u>

<u>150 \times 2 = 300</u>

Joe will earn R300 over the weekend,

6 0
2 years ago
Please help me this Is due
sergiy2304 [10]
Here’s the answers hope this helps.

3 0
3 years ago
-2/x^2-4 + x-1/x^2-2x
Fiesta28 [93]

Answer:

I need help with this too

Step-by-step explanation:

8 0
3 years ago
Need help ON THESE TOO PLEASE WILL MARK BRAINLY
LenKa [72]

Answer:

1)

angle 2WZX = angle ZYX ( Since all angles and sides of a rhombus are equal)

ZYX = 2 x 29.5

59

2)

4x - 10 =90 (since all angles of a rhombus intersect at 90°)

x=90+10/4

x=100/4

x=25

hope this helps

5 0
3 years ago
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