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Phoenix [80]
2 years ago
13

Write an equation and solve for x

Mathematics
1 answer:
user100 [1]2 years ago
8 0
3x+12+x=90, simplify (4x+12=90), subtract both sides by 12 (4x=78), divide both sides by 4 (39/7)
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Bernardo drives to work at an average speed of 50 miles per hour and returns along the same route at an average speed of 25 mile
-BARSIC- [3]
Bernardo travels the same distance at 25mph as he does at 50mph. However, since 25mph is only half of 50 mph, he must travel twice as long at 25mph. If you call the time he traveled 50mph "t", then 

<span>t+2t=3 </span>
<span>3t=3 </span>
<span>t=1 </span>

<span>This means he traveled 1 hour at 50mph. In this time, he traveled 50 miles. He traveled the same distance at 25mph, so his total distance was </span>

<span>50miles+50miles=100miles </span>

<span>so the round trip was 100 miles.</span>
6 0
3 years ago
How to do it and and explanation
TEA [102]

Answer:

                   

Step-by-step explanation:

5 0
3 years ago
(2x^2-5x+1)+(x^2-x-4)
maksim [4K]

Answer:

3x^2-6x -3

Step-by-step explanation:

(2x^2-5x+1)+(x^2-x-4)

we sum all coefficient according to the exponent of the variable

2x^2-5x+1+x^2-x-4 = 3x^2-6x -3

5 0
3 years ago
SImplify and divide the following radical expression: √2/√6
kap26 [50]

Answer:   so the square root od 2 is 1 and 2

and the square root of 6 is 2 and 3

and idk the simplist for for it srry

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP ITS DUE TODAY!!
Lena [83]

Answer:

a) 5 pizzas need to be ordered and half of a pizza will be left over aka 0.5

b) $45

Step-by-step explanation:

3 0
3 years ago
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