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KatRina [158]
2 years ago
15

How would you solve this question by substitution 13x−6y=22 x=y+6 ​

Mathematics
1 answer:
mario62 [17]2 years ago
4 0

Answer:  x=-2 y=-8    or    (-2,-8)

Step-by-step explanation:

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Use dimensional analysis to convert .33 kilometers to meters.
lubasha [3.4K]
Since 1 km = 1000 m then .33 km = 350 m

Hope this helps!
3 0
3 years ago
A 1400 kg car moving +13.7 m/s makes an elastic collision with a 3200 kg truck, initially at rest. What is the velocity of the c
Kamila [148]

Answer:

The velocity of the car after the collision is -5.36 m/s

Step-by-step explanation:

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.

let the following:

m₁ = mass of the car = 1400 kg

m₂ = mass of the truck = 3200 kg

u₁ = velocity of the car before collision = 13.7 m/s

u₂ = velocity of the truck before collision = 0 m/s

v₁ = velocity of the car after collision

v₂ = velocity of the truck after collision

v₁ = [ u₁ * (m₁ - m₂) + u₂ * 2m₂ ]/ (m₁ + m₂)

   =  [ 13.7 * (1400 - 3200) + 0 * 2 * 3200 ]/ (1400 + 3200)

   = - 5.36 m/s

So, <u>the velocity of the car after the collision is -5.36 m/s</u>

7 0
3 years ago
Can someone help answer b plzzz
BartSMP [9]
No she is not correct
80 x.70 is 56 as you wrote, and it says 70% wait LESS THAN 30 minutes
On the left of the graph, time, you go to 30 minutes and the patients are much less (21) than 56 patients

ANSWER: No
5 0
2 years ago
I got 40% off when I purchased a set of golf balls regularly priced at $20. How<br> much did I save?
lianna [129]

Answer:

$8

Step-by-step explanation:

40% times $20 = 8

BRAINLIEST PLEASE

6 0
3 years ago
HELPPPPP HELPPPPP HELPPPP!!!!! AHHHHHHHHHHHHHHJJJJSJDJDJ
erica [24]

Answer:

QRS equals to 91

Step-by-step explanation:

50 + 41 = 91

8 0
2 years ago
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