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2 years ago

I need help with no.7

Mathematics

1 answer:

ziro4ka [17]2 years ago

8 0

Answer:

(a) 315°

(b) 3°

Step-by-step explanation:

Bearings are measured clockwise from north. The triangle described is illustrated in the attachment.

The bearing of P from R is 180° different from the bearing of R from P it will be ...

135° +180° = 315° . . . . bearing of P from R

The bearing of Q from R is 48° more than the bearing of P from R, so is ...

315° +48° = 363°, or 3° . . . . bearing of Q from R

The angle QPR has a value that makes the sum of angles in the triangle equal to 180°. It is ...

180° -48° -55° = 77°

The bearing of Q from P is 77° less than the bearing of R from P, so is ...

135° -77° = 58°

As above, the reverse bearing from Q to P is ...

58° +180° = 238° . . . . bearing of P from Q

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7. A shopkeeper buys 300 identical articles a tota

sashaice [31]

Step-by-step explanation and answers:

300 articles at a total cost of $1500:

$1500 / 300 = $5 / article

Sells 260 articles at a price 20% above this ^ price:

20% of $5 is $1, so $5 + $1 = $6

Then he sells 260 articles at the price of ^ $6

260 * $6 = $1560

Each of the remaining articles is sold at a price that's 50% of the 260 he sold.

He sold those for $6, so he would now sell the last 40 for $3

From the remaining 40 articles, he makes 40 * $3, or $120

The shopkeeper made $1560 + $120 = $1680, which is $180 more than he bought them for ($1500)

Therefore, he made a profit percentage of $180 / $1500, (the amount of profit over the amount spent).

He made a profit percentage, compared to the cost price, of 12%.

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3 years ago

Find the y-intercept of the line on the graph

igor_vitrenko [27]

Hey there Caiiitynn.

The Y-intercept is where the line goes through the Y-Axis. In this case, its 3.

-TheOneandOnly003

6 0

3 years ago

Read 2 more answers

In Mr. Henry’s class, there are 8 students that wear glasses, and 3 of them are boys. c. Write a ratio that compares the number

Ad libitum [116K]

Answer:

3 : 5

Step-by-step explanation:

Since there are 3 boys, the number of girls is 5.

Causing the ratio to be 3 : 5

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3 years ago

Find the complement of the angle shown

Archy [21]

Supplementary = 180°
Complementary = 90°

180° - 52° = 128°
90° - 52° = 38°

Hope this Helps!!

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3 years ago

HELP ASAP PLEASE HELPPPPPPP PLEASE

ella [17]

Answer:

5 times 3

Step-by-step explanation:

you do 5 time 3. it is 15

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3 years ago