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Kobotan [32]
3 years ago
9

PLEASE ANSWER + BRAINLIEST!!

Mathematics
1 answer:
vovikov84 [41]3 years ago
3 0
If you have a product of variables, it is not linear.

A. x(y - 5) = 2
xy - 5x = 2
xy is a product of variables, so option A is not linear.

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Maggie is planning on going to Penn State University. She estimates that she will need to earn at least $2,000 to live off of ov
professor190 [17]
A. The amount of money she must earn in the summer must be
x ≥ 2450

B. The inequality that describes the situation is
30x ≤ 2000

C. Solving the inequality
x ≤ 66.67 ~ 66 weeks

D. The answer is Part C means that she can only make use of the $2000 money for food for 66 weeks before it's not enough.
8 0
3 years ago
When a jug is half-filled with marbles, it weighs 2.6 kg. If the jug weighs 4 kg when full, find the weight of the empty jug.
Fittoniya [83]

Answer:

1.2 kg

Step-by-step explanation:

filling the jug up half way adds 1.4 kg to the weight.

2 x 1.4 - 2.8 kg of marbles when full

4-2.8 = 1.2 kg

8 0
3 years ago
Read 2 more answers
If the vertex of a parabola is (-4,-7), what is the axis of symmetry?
mel-nik [20]

Answer:

-4

Step-by-step explanation:

Given vertex, the axis of symmetry is x = h.

4 0
2 years ago
1- Un avión se desplaza a 720 km/h.¿Que tiempo tarda en recorrer 120.000.000 cm?
Ostrovityanka [42]

Answer:

Step-by-step explanation:

1- Un avión se desplaza a 720 km/h.¿Que tiempo tarda en recorrer 120.000.000 cm?

x = 120.000.000 cm = 1200.000 m (Dividir para 100)

v = 720 km/h = 200 m / s (Dividir para 3,6)

x = v*t

t = x / v

t = 12000000 / 200

t = 6000 segundos = 100 minutos = 1 hora 40 minutos

2-Un auto recorre 430 km en 6 h 30 min 18 s.¿Cual es su velocidad en km/h?

x = 430 Km = 430000 m

t = 6 h 30m 18 s

t = 6 * 3600 + 30 * 60 + 18

t = 21798 s

v = x / t

v = 430000 / 21798

v = 19,72 m/s = 71 km/h (Multiplica por 3,6)

3-Una moto se desplaza a 144 km/h durante 820 min. calcular la distancia recorrida

v = 144 km/s = 40 m/s

t = 820 min * 60 = 49200 s

x = v*t

x = 40 * 49200

x = 1968000 m = 1968 Km

4-un atleta corre a 9 m/s.¿Cuanto tiempo tarda en recorrer 10,9 Km?

v = 9 m/s

x = 10,9 km = 10900 m

t = x / v

t = 10900 / 9

t = 1211,11 s = 20 minutos 11 segundos

5 0
3 years ago
Jill leaves work from the High School, but has to pick up her friend at the airport before going back home. What is the shortest
Romashka-Z-Leto [24]

Answer:

21 miles

Step-by-step explanation:

That is just the answer I got.

3 0
3 years ago
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