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Nikitich [7]
3 years ago
14

HELP, Would I have to subtract 180 from 70 to get the answer for C?? What would the answer be?

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0

Answer:

<em>Angle C is equal to 30.</em>

Step-by-step explanation:

To find angle C, we have to find all the other angles first. They tells us the B ~= BAD ~= ADC. So, if we find ADC, we've found B and BAD as well. ADC is just 180 - 70 (the angle of ADE), which is 110. So, ADC, BAD, and B are equal to 110.

Remember, angles in a quadrilateral add up to 360. So, add all of the values of angles be have now and subtract from 360:

360 - (110 + 110 + 110)

360 - 330 = 30

Angle C should be equal to 30.

Hope this helped!

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(a) The marked price of a Jacket at a dealer's shop is Rs.2400. The dealer alle
Alexxx [7]

Answer:

SP is 2400

Final price with 10% VAT is 2640

The actual gain of retailer is 360

Step-by-step explanation:

Given

Marked price of a jacket at dealer shop is 2400

The dealer alle discount of 15% to the retailer

The marked price of the  retailer should be the same as dealer's marked price.

The SP should rate for the jacket without VAT 2400

Final price if 10% VAT is imposed

10% VAT on jacket price 2400 is x

x=\frac{2400}{10}

x=240

The the final price including 10% VAT = 2400 + 240

Final price with 10% VAT = 2640

Actual gain of retailer

Given, The dealer alle discount of 15% to the retailer

So, The retailer gain profit is 15% on jacket price 2400

Therefore

Let x be the gain of retailer

x=\frac{15}{100}\times2400\\x=15\times24\\x=360

So, The actual gain of the retailer is 360

The SP should rate for the jacket without VAT 2400

Final price with 10% VAT = 2640

The actual gain of the retailer is 360

8 0
3 years ago
  y+7= -2/5 (x-10) What is the standard form of the equation for this line?
sveticcg [70]

The standard form of the equation of a line:

Ax+By=C

-----------------------------------------------------------------

y+7=-\dfrac{2}{5}(x-10)\qquad|\text{use distributive property}\\\\y+7=-\dfrac{2}{5}x+\left(-\dfrac{2}{5}\right)(-10)\\\\y+7=-\dfrac{2}{5}x+2\cdot2\\\\y+7=-\dfrac{2}{5}x+4\qquad|\text{multiply both sides by 5}\\\\5y+35=-2x+20\qquad|\text{add 2x to both sides}\\\\2x+5y+35=20\qquad|\text{subtract 35 from both sides}\\\\2x+5y=-15

3 0
3 years ago
What is that value of y in the equation 6.4x + 2.8y =44.4,when x=3
sasho [114]
The value of y, when x = 3, would be 9.

HERE'S HOW I GOT THAT ANSWER:
When you multiply 6.4 and 3, your would get 19.2. So you would subtract 44.4 and 19.2, and then you would get 25.2. Once you would get that, you would divide 25.2 by 2.8 so you could isolate the y, and once you did that, you would get 9.
6 0
3 years ago
Read 2 more answers
In a school, the ratio of teachers to girls is 1:7 while that of boys to girls is 3:4, If there are 280 girls in the school, wha
Nuetrik [128]

Answer:

The total number of pupils and their teachers = 530

                                                                             

Step-by-step explanation:

No. of girls in the school = 280

The ratio boys to girls is 3:4 and that of teachers to girls is 1:7

∴ The ratio boys to girls is 3x : 4x where, 4x = 280

and The ratio of teachers to girls is x : 7x where, 7x = 280

4x = 280

\frac{280}{4\\} = x

70 = x

So, the no. of girls in the school = 4x = 4(70) = 280 and the no. of boys in the school  = 3x = 3(70) = 210

7x = 280

\frac{280}{7\\} = x

40 = x

So, the no. of girls in the school = 7x = 7(40) = 280 and the no. of teachers in the school = x = 40

∴ The total number of pupils and their teachers = 280 + 210 + 40

                                                                             = 530

3 0
3 years ago
What is the solution to the system of equations below?
Anon25 [30]

Answer:

The correct one is A

Step-by-step explanation:

2x-y=10

y=1/2 × x+5

Now you substitute the value of y into the first equation.

2x - (1/2 × x+5) = 10

Solving this equation for x you get that x=6

Now substitute the value of x any of these two equations, doesn't matter. Let's say we do with the first one.

2×6-y=10

12-y=10

-y=10-12

-y= -2

y=2

And so you've got the first one which is, (x,y)=(6,2)

4 0
3 years ago
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