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3 years ago

PLEASE HELP YOU WILL GET THE BRAINLIEST

Mathematics

1 answer:

k0ka [10]3 years ago

3 0

Answer:

I won't be able to solve the entire question but I will give you the formula and show you how to find the answer

4) 1.65x + 1.36y = 118.17 (i)

x + y = 79. (ii)

From the (i) equation you get

1.65x = 118.17 - 1.36y

x = (118.17 - 1.36y)/1.65 (iii)

Substituting the value of (iii) in (ii)

(118.17-1.36y)/1.65 + y = 79

When you solve it you will get the answer

After that find the value of x and y and multiply them by 1.65 and 1.36 respectively.

Then find their difference and see which class sold more and by how much.

Hope this helps you!

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Two buildings on level ground are 120 m and 85 m tall respectively. given that the angle of elevation of the top of the taller b

Luda [366]

Answer:

(-8,-5)

Step-by-step explanation:

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3 years ago

Find the missing angle on a quadrilateral. Angle C equals 80 degrees, Angle D equals 90 degrees, and angle E equals 135 degrees.

padilas [110]

All quadrilateral angles have to add up to a total of 360°, so we just need to add the angles we already have and subtract that from 360.
135+90+80=305
360-305=55 so your answer is 55!

4 0

3 years ago

Please do correctly! I will mark you Brainliest!

kolbaska11 [484]

Answer:

3(4+√2)

Step-by-step explanation:

Here we need to find the perimeter of the given figure. Here the given figure is made from a triangle and a square. The side lenght of the square is 3. We need to find the hypontenuse of the triangle in order to find Perimeter .

• Using Pythagoras Theorem :-

⇒ h² = p² + b²

⇒ h² = 3² + 3²

⇒ h² = 9 + 9

⇒ h² = 18

⇒ h = √[ 9 × 2 ]

⇒ h = 3√2 .

Therefore the perimeter will be ,

⇒ P = 3√2 + 3 + 3 + 3 + 3

⇒ P = 3√2 + 12

⇒ P = 3( 4 + √2)

<h3>Hence the perimeter of the figure is 3(4+√2) .</h3>

4 0

3 years ago

What is 18.25 as a fraction ?

Elis [28]

73/4 is the answer to your question sir your welcome

7 0

3 years ago

Read 2 more answers

1/2x + 6= 3x - 4 Solve the system of equations

shepuryov [24]

1.Combine multiplied terms into a single fraction

2. Multiply by 1

3. Subtract 6 from both sides of the equation

4.Simplify

5.Subtract 3x from both sides of the equation

6.Simplify

7.Multiply all terms by the same value to eliminate fraction denominators

8.Simplify

9.Divide both sides of the equation by the same term

10.Simplify

Solution:x=4

5 0

2 years ago