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pishuonlain [190]
3 years ago
13

Solve for X: 1.) 3x-4=6x+5 2.) 3x-4=6x+5 3.) -2(1+7x) = -100 4.) x - 1 + 3= - 2- x

Mathematics
2 answers:
TiliK225 [7]3 years ago
4 0

Answer:

1) -3

2) -3

3) 7

4) -2

Gennadij [26K]3 years ago
3 0

Answer:

Step-by-step explanation:

1) -3

2) -3

3) 7

4) -2

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What’s a number that multiplies to four but adds to three
d1i1m1o1n [39]

Answer:

The answer is clearly 4 and 1. If we change the sign on 1 (making it -1), then you have the answer to your original question. 4 and -1 multiply to -4 and add up to 3.

3 0
2 years ago
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Two planes start flying towards each other simultaneously from two different cities. The distance between the cities is 960 mile
ANTONII [103]

Answer:

257.5 mph

332.5 mph

Step-by-step explanation:

The initial distance between the two planes is 960 miles, while the final distance (after t=1.5 h) is 75 miles, so the total distance covered by the two planes in 1.5h is

d=960-75=885 miles

Calling v1 and v2 the velocities of the two planes, we have the following equations:

(1) v_1 = v_2 + 75 --> velocity of plane 1 exceeds velocity of plane 2 by 75 mph

(2) v_1 t+ v_2 t=885 --> the total distance covered by the two planes is 885 miles (t=1.5 h is the time, and the products v1 t and v2 t represent the distance covered by each plane)

Substituting t=1.5 h, the second equation becomes:

1.5 v_1+1.5 v_2=885\\v_1 + v_2 = 590

By substituting (1) into this last equation, we find:

(v_2+75)+v_2 = 590\\2v_2 + 75 = 590\\2v_2 = 515\\v_2=257.5

And substituting this back into eq.(1), we find

v_1 = 257.5 + 75=332.5

So, the speeds of the two planes are

257.5 mph

332.5 mph



3 0
3 years ago
PLEASE ANSWER. WILL GIVE BRAINLIST TO THE FIRST THAT ANSWERS
Elza [17]
First you would take both radius' and add them. Once you add them, subtract the sum by 42. that will give you the distance between the gap of the circles. now that you have that distance, add 19 and 11 and your result is your final answer.
3 0
3 years ago
What number is 0.475 more than 0.56?<br> I need help
CaHeK987 [17]

Writing as an equation :

X = 0.475 + 0.56


Add:

X = 1.035


Answer:

1.035 is 0.475 more than 0.56

4 0
2 years ago
Which term describes the red curve in the figure bellow?
Zarrin [17]

Answer:

Letter B. Hyperbole is your answer

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3 years ago
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