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Nastasia [14]
3 years ago
6

11. C and d are complementary angles. C= (3x + 8)° and D= (2x – 8)°. Find the value of x.

Mathematics
1 answer:
salantis [7]3 years ago
7 0
Complementary = 90 degrees

90 = (3x+8) + (2x-8)

solve for x and get 18
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Acellus. please help me
Doss [256]

by-step explaAnswer:

by-step epla

Step-nation:

a

6 0
3 years ago
A supplier sold a scanner machine for Rs 41,400 with 15% VAT after allowing 10% discount on it's marked price and gained 20%. By
victus00 [196]

3%

Answer:

Selling price with VAT {15%} = Rs 41400

S.P +15% of S.P =Rs 41400

S.P(1+15%)=Rs 41400

S.P=Rs 41400/1.15

Selling price without VAT =Rs 36000

Again

Discount = 10%

M.P =S.P+ Discount % of M.P

M.P-Discount% of M.P= S.P

M.P(1-Discount%)=Rs 36000

M.P(1-10%)=Rs 36000

M.P=Rs 36000/0.9

Marked Price = Rs 40,000

again

Discount =Discount % of M.P

=10% of 40000

=Rs 4,000

Again

Profit=20%

For 20% profit

Cost price = (S.P*100)/(100+profit%)

=(36000*100)/(100+20)

= Rs 30000

For 24% profit

selling price = (100+profit%)*C.P/100

=(100+24)*30000/100

=Rs 37200

Again

Discount = 40000–37200 = Rs2800

Discount % = discount/M.P*100%

=2,800/40,000* 100 = 7%

Finally

Discount percent to be reduced =10%–7%= 3%

3 0
2 years ago
Suppose you have 5 riders and 5 horses, and you want to pair them off so that every rider is assigned one horse (and no horse is
maw [93]

There are 120 ways in which 5  riders and 5 horses can be arranged.

We have,

5 riders and 5 horses,

Now,

We know that,

Now,

Using the arrangement formula of Permutation,

i.e.

The total number of ways ^nN_r = \frac{n!}{(n-r)!},

So,

For n = 5,

And,

r = 5

As we have,

n = r,

So,

Now,

Using the above-mentioned formula of arrangement,

i.e.

The total number of ways ^nN_r = \frac{n!}{(n-r)!},

Now,

Substituting values,

We get,

^5N_5 = \frac{5!}{(5-5)!}

We get,

The total number of ways of arrangement = 5! = 5 × 4 × 3 × 2 × 1 = 120,

So,

There are 120 ways to arrange horses for riders.

Hence we can say that there are 120 ways in which 5  riders and 5 horses can be arranged.

Learn more about arrangements here

brainly.com/question/15032503

#SPJ4

7 0
2 years ago
Biologists have found that the number of chirps some crickets make per minute is related to temperature. The relationship is ver
pychu [463]

Answer:

  points (x, y) = {(124, 68), (172, 80)}

  y = 1/4x +37

Step-by-step explanation:

For the variable definitions given, the problem statement gives you the points ...

  (chirps, temperature) = (x, y) = (124, 68)  or  (172, 80)

__

You are asked to find a linear equation that relates x and y.

The slope can be found using the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (80 -68)/(172 -124) = 12/48 = 1/4

The y-intercept can be found from ...

  b = y -mx

  b = 68 -(1/4)(124) = 37

Then the equation that models the relationship can be written ...

  y = 1/4x +37

3 0
2 years ago
Please helpppp!?!!!!?
____ [38]
It would be 9!!!
Hope that helps!!!
3 0
3 years ago
Read 2 more answers
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