-x+ 5y = 1<br> - 2x + 10y = 2

David is a professional ice skater who has skated in 10 competitions. His scores in the competitions are as follows: 204, 310,

anastassius [24]

Answer: 267.7

I just did the math and I got this answer

4 0

3 years ago

White alphabet used to denote matrix and its element with example

Oksanka [162]

Answer:

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Step-by-step explanation:

Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest. Im not sure how to be honest.

3 0

3 years ago

Hello people again please help

densk [106]

Ok so a triangle is equal to 180 degrees!!!
So with that info u can make a crazy little equation
180=70+68+47+x
Ok then you add 70,68 and 47
180=185+x
Ok now u have to subtract 185 on both sides
And get the answer -5=x or x=-5 (same thing)

3 0

3 years ago

Penny's function has an output that is four more than three times the input. Johns function expressed in slope-intercept form is

jonny [76]

John's function : y = 3.5x - 4
Penny's function : y = 3x + 4

C. John's function has a greater rate of change, because 3.5 > 3

5 0

4 years ago

An airplane takes 3 hours to travel a distance of 1680 miles with the wind. The return trip was 4 hours against wind. Find the s

nasty-shy [4]

Answer:

Speed of plane in still air: 490 mile/hour

speed of wind: 70 mile/hour

Step-by-step explanation:

still speed = x wind speed = w

with wind: speed = still + wind

(x+w) * 3 = 1680 ...a

against wind: speed = still - wind

(x-w) * 4 = 1680 ...b

b-a ... 4x-4w-3x-3w = 0

x-7w = 0

x = 7w

substitution: (7w+w)*3 = 1680 8w = 560 wind speed (w) = 70

still speed (x) = 7w = 490 mile/hour

5 0

3 years ago

-x+ 5y = 1 - 2x + 10y = 2