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Sever21 [200]
3 years ago
10

Please help me out I'm sort of stuck

Mathematics
1 answer:
astraxan [27]3 years ago
5 0
Ill try and help
Im also doing school work
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Bonjour je suis en 3 ème pouvez vous m'aider s'il vous plaît une voiture met 2 h 30 pour faire 200 km 1. Calculer sa vitesse moy
Lemur [1.5K]

Répondre:

Explication étape par étape:

Vitesse = Distance / Temps

Distance donnée = 200 km

Durée = 2 h 30

Convertir le temps en heures

Depuis 60 minutes = 1h

2 heures 30 minutes = 2+ (30/60)

2h30 = 2 + 1/2 hors

2 heures 30 minutes = 2,5 heures

Vitesse en km / h = 200 km / 2,5 h

Vitesse en km / h = 80 km / h

D'où sa vitesse moyenne en km / h est de 80 km / h

a) Distance = Vitesse * Temps

Vitesse donnée = 80 km / h

Durée = 3h15

Temps = 3 15/60 h

Durée = 3,25 h

Distance = 80 * 3,25

Distance parcourue en 3h15 = 260 km

b) Distance = Vitesse * Temps

Vitesse donnée = 80 km / h

Durée = 42 minutes

Durée = 42/60 h

Distance = 80 * 42/60

Distance = 3360/60

Distance = 56 km

Distance parcourue en 42 minutes = 56 km

c) Distance = Vitesse * Temps

Vitesse donnée = 80 km / h

Durée = 3 h 36 minutes

Temps = 3 36/60 h

Durée = 3,6 h

Distance = 80 * 3,6

Distance = 288 km

Distance parcourue en 3 h 36 min = 288 km

d) Distance donnée = 540 km

Vitesse = 80 km / h

Temps = Distance / Vitesse

Heure = 540/80

Temps = 6,75 heures

Par conséquent, le temps nécessaire pour parcourir 540 km est de 6,75 heures

7 0
4 years ago
Pleeeeeeeeeeeeeeeeeeease i need this answer
geniusboy [140]

Answer:

12^2(Pi)+24*(Pi)*35

Step-by-step explanation:

12^2(Pi)+24*(Pi)*35

4 0
3 years ago
Fruit-O-Rama sells dried pineapple for 0.25 per ounce.Mags spent a total of 2.65 on pineapple, how many ounces did she buy
Lesechka [4]
Divide 2.65 by 0.25
So 2.65/0.25= 10.6
So 10.6 ounces
8 0
4 years ago
Emma is moving and must rent a truck. In addition to an initial fee, the rental company charges a fee of $2.50 per mile driven.
dolphi86 [110]

Answer: i think the answer is 6 hope this helps

Step-by-step explanation: multiply the divide

5 0
4 years ago
Read 2 more answers
Can someone help me!!!!!!
skad [1K]
13. if edward wins 6 of his remaining games...that would make a total of 12 wins (since he already won 6 earlier)

3/4 as many winsa as edward....3/4(12) = 36/4 = 9...so he would have to win 9 to have 3/4's as much as edward...and howard has already won 4...so he needs (9 - 4) = 5....he needs 5 wins
=======================
14. Robert  has already won 2, and he has lost 8...so he would have to win at least 7 of his games to have more wins then losses
6 0
3 years ago
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