What is the system of equations? help!!

Mathematics

1 answer:

NeX [460]3 years ago

7 0

use one five dollar box then use 4 4 $ boxes then its five dollar boxes the rest of the way so it would be 59 5$ boxes then Four 4$ boxes

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HELP PLEASE!!!

boyakko [2]

Depends on if you want it rounded.

14.47

4 0

3 years ago

200 labourers need 50 days to construct a road of 4 km long. How many labourers are needed to construct 8 km long in 80 days

patriot [66]

Answer:

250

Step-by-step explanation:

Number of labourers * Number of days worked = Total number of working days

Total number of working days to construct a 4km long road: $200*50=10000$

Total mumber of working days to construct a 8km long road: $10000*2=20000$

Labourers: 20000 ÷ 80 = 250.

250 labourers are required.

7 0

3 years ago

Fiona wrote the linear equation y = 2/5 X -5. When Henry wrote his equation they discovered that his equation had all the same S

REY [17]

The equation of the graph is given as y = (2/5)x - 5.

You have to figure out which of the choices equals the equation given,
y = (2/5)x - 5.
You could solve each of the answer choices for y, but since each choice is in the format x - (m)y = b, you can put the given equation in that format too.

$y= \frac{2}{5}x - 5 \\ 
5= \frac{2}{5}x-y \\ 
 \frac{2}{5}x - y = 5 \\ 
 (\frac{5}{2}) \frac{2}{5}x - (\frac{5}{2})y = (\frac{5}{2})5 \\ 
x - (\frac{5}{2})y = \frac{25}{2}$

5 0

3 years ago

Read 2 more answers

Please help me with 4 more questions ill give brainliest plesase!!

slavikrds [6]

Answer:

(- 1, - 1 )

Step-by-step explanation:

Since the dilatation is centred at the origin, then multiply the coordinates of the original point by the scale factor, that is

(- 3, - 3 ) → ( $\frac{1}{3}$ × - 3, $\frac{1}{3}$ × - 3 ) → (- 1, - 1 )