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Mkey [24]
3 years ago
10

PLSSS HELP IF YOU TURLY KNOW THISS AND EXPLAIN PLS:)

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
4 0

Answer: x=36

Step-by-step explanation: first, subtract 12 from both sides of the equation. X/2 + 12 = 84. X/2=72, then divide both sides of the equation by two to isolate the variable. X=36

Hope this helped! Comment any questions about this!

nikitadnepr [17]3 years ago
4 0

Answer: x=144

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable

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For which value of x is the equation 3x + x = 2x + 24 true?
Lynna [10]

Answer:

D) 12

Step-by-step explanation:

3x+x=2x+24

4x=2x+24

4x-2x=24

2x=24

x=24/2

x=12

4 0
3 years ago
10 to the 5th power plus 10 to the -1 power
Serggg [28]
1000000+1/10. There are no rules for when you add the powers.
8 0
3 years ago
Using pythagorean theorem find a, and b, where a is twice of b and the hypotonuse is 5√5
patriot [66]
Measure of Hypotaneous = 5√5

And it's already given that b = 2a

By using pythagoras theorem:

a²+ b² = (5√5)²

Let's substitute for b as 2a in above equation we'll get:

a² + (2a)² = (5√5)²

a² + 4a² = 125
5a² = 125
a² = 25
a = √25 = 5


Therefore,
a= 5
and
b = 2a = 2(5) = 10.


3 0
3 years ago
Read 2 more answers
((Image Included))
Bas_tet [7]

Answer:

=204.13 inches.

Step-by-step explanation:

Using the side x, we can use sine to find the hypotenuse of the triangle with the angle marked 30°.

Sin 30 =x/hypotenuse.

sin 30 = 27/hyp

hyp= 27/sin 30

=54 inches

We can also find the adjacent as follows.

Cos 30 = adjacent/ 54

Adjacent= 54 cos 30

=46.77 inches

Using the angles marked 45 we can find the hypotenuse of the isosceles triangle.

sin 45= x/hypotenuse

sin 45 =27/hypotenuse

hypotenuse = 27/sin 45

=38.18 inches

The hypotenuse of both the triangles making the isosceles triangle are 38.18 inches long.

Perimeter = 54+ 46.77+27+ 38.18+38.18

=204.13 inches.

6 0
2 years ago
Read 2 more answers
Answer for Answer? I need the answer to 8 and 9. I’ll answer 2 of yours
steposvetlana [31]
Let's go:

8)

Total of senior students = 38
Total of senior students that preferred evening classes: 7
7/38 = aproximately 0,18 or 18%

Alternative A)

9)
Imagine being sold 100 desserts. Of these 100 desserts, 75% até chocolate, meaning 75 of these desserts are chocolate. Of these 75, 23% contains nuts. So:

75 × 0,23 = 17,25 = aproximately 17,3%

Alternative C)

I hope I helped you.
6 0
3 years ago
Read 2 more answers
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