3 years ago

PLEASE PLEASE HELP MEEE

Mathematics

1 answer:

miss Akunina [59]3 years ago

4 0

Answer:

d. $x=a(1-\frac{y}{b})$

Step-by-step explanation:

$\frac{x}{a} + \frac{y}{b} = 1$

$\frac{x}{a} = 1 - \frac{y}{b}$

$x = a(1 - \frac{y}{b})$ <----- This is your answer

Hope this helps!

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Sam receives 4 dollars more than Nathan for allowance. Nathan receives 8 dollars less than Hector. If Sam receives 15 dollars fo

QveST [7]

S = N + 4
N = H - 8
S = 15

S = N + 4

Plug in 15 for 'S':

15 = N + 4

11 = N

N = H - 8

11 = H - 8

Add 8 to both sides:

19 = H

So Hector receives $19 for allowance.

3 0

3 years ago

Read 2 more answers

amirah ,who is at a point P ,observes a boat at pont B 1200m from P in direction 047 degrees. The boat is moving due north of B

Luda [366]

Answer:

about 2.81 km/h

Step-by-step explanation:

It can be useful to draw a diagram.

The lines pointing to due north from points B and P are parallel, so the angle BCP and the bearing of point C from P are the same, 30°. The angle BPC will be the difference of bearings of B and C at P, so is 47-30=17°. This is enough information to solve the triangle using the Law of Sines:

PB/sin(C) = CB/sin(P)

CB = PB·sin(P)/sin(C) = (1200 m)·sin(17°)/sin(30°) ≈ 701.7 m

The speed of the boat is then ...

x = distance/time = (0.7017 km)/(1/4 h) = 2.8068 km/h