W+d=869
w=d-81
plug in
(d-81)+d=869
2d-81=869
+81 both sides
2d=950
÷2 both sides
d=475
dryer cost $475

let's check w=475-81
w=394
475+394=869
869=869
the solution is true :)

7 0

3 years ago

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(NEED HELP ASAP) A train covers the 1500 km distance from Amsterdam to Barcelona at an average speed of 90 km/h. If the train le

Natasha_Volkova [10]

1500km divided by 90km = 16.6666667, so therefore it is 16 hours and 36 minutes. add that to 9:30, it arrives at 2:06am on Wednesday.

3 0

3 years ago

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A 30-60-90 triangle's short leg has a length of 25. What is the length of the longest leg?

astraxan [27]

Answer:

25 $\sqrt{3}$

Step-by-step explanation:

30-60-90 Triangles

short leg = x

long leg = x $\sqrt{3}$

hypotenuse = 2x

5 0

3 years ago