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oee [108]
2 years ago
11

A coastal geologist estimates that a certain country's beaches are

Mathematics
1 answer:
andre [41]2 years ago
3 0
21/1.5=14

14 years to erode
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Two angles are supplementary angles. One angle measures 58 degrees. The other angle measures 3n + 5 degrees. What is the value o
stepladder [879]

Answer:

39

Step-by-step explanation:

Angles are supplementary when they add up to 180.  So, we know the other angle that isn't 58 is 180-58=122.  Therefore, 122=3n+5\\3n=117\\n=39

5 0
3 years ago
The slopes of perpendicular lines _____.
HACTEHA [7]
Hey there

The slopes of perpendicular lines are negative reciprocals. <span>Perpendicular lines have slopes that are </span>negative reciprocals<span> of each other.</span><span>

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3 years ago
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7 divided 2/3 , give answer in its simplest form
cluponka [151]

Answer:

21/2 or 10 1/2

8 0
3 years ago
U divided by 3 = 6 what is U a solution to
drek231 [11]

Answer:

u=18

Step-by-step explanation:

u/3 =6

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u/3*3 =6*3

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7 0
3 years ago
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Solve simultaneous equation <br> X-2y=1<br> 2x-y=2
Step2247 [10]

Answer: x=1,y=0

Step-by-step explanation:

X-2y=1.....equation 1

2x-y=2.....equation 2

X=1+2y.......equation 3

Substitute equation 3into 2

2(1+2y)-y=2

2+4y-y=2

2+3y=2

3y=2-2

3y=0

Y=0/3

Y=0

Substitute for y=0 in equation 1

X-2y=1

X-2(0)=1

X-0=1

X=1

X=1 & Y=0

7 0
3 years ago
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