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TiliK225 [7]
3 years ago
5

A blue whale makes a call underwater at the same time as an elephant calls on land. How long will it take each of these sounds t

o travel 3 km? Show your work.
air 340 m/s
ocean 1500 m/s
Mathematics
1 answer:
bonufazy [111]3 years ago
7 0
What u basically do it divided them both by 3
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Please help me if you can!
bazaltina [42]

Answer:

<h2>y = 7</h2>

Step-by-step explanation:

We know that the sum of the measures of angles on one side of the parallelogram is 180°.

We have the equation:

(6x - 12) + (132 - x) = 180

6x - 12 + 132 - x = 180               <em>combine like terms</em>

(6x - x) + (-12 + 132) = 180

5x + 120 = 180              <em>subtract 120 from both sides</em>

5x = 60          <em>divide both sides by 5</em>

x = 12

Opposite angles in the parallelogram are congruent.

Therefore:

6y + 18 = 6x - 12

Put the value of x to the equation and solve it for y:

6y + 18 = 6(12) - 12

6y + 18 = 72 - 12

6y + 18 = 60           <em>subtract 18 from both sides</em>

6y = 42          <em>divide both sides by 6</em>

y = 7

7 0
3 years ago
How long will the sum of Rs 5,000 take to reach the amount RS 8750 at the rate of 15% per annum​
Nonamiya [84]

Answer:

It will take 5 yrs the sum of 5000 will take to reach Rs 8750 at the rate 15%

Step-by-step explanation:

T= ?

Amount = Rs 8750

R = 15%

P = Rs 5000

so

I = A-P

= 8750 - 5000

= Rs 3750

so

I = PTR/100

3750 = (5000*15*T)/100

or, 375000 = 75000*T

or, T = 375000/75000

so T = 5 yrs

8 0
3 years ago
There are 40 students trying out for a soccer team. After tryouts, 18 of these students will make the soccer team, and 3 of thos
matrenka [14]
The answer is B: 1/6 because the probability will be 3/18. Simplified, it's 1/6. Hope this helped!
4 0
3 years ago
BRAINLIEST!!! Lorenzo deposited $60 in a savings account earning 10% interest, compounded annually.
lubasha [3.4K]
Answer: it way be 72.60$ but i’m not sure
5 0
3 years ago
What is the first step in the construction of a line perpendicular to and passing through an external point M? Assume that the c
AVprozaik [17]

Answer:

A.)lPace the compass needle on M and, keeping the compass width the same, draw two arcs that intersect

Step-by-step explanation:

In the construction of a line perpendicular to AB←→ and passing through an external point M the first step must be"Place the compass needle on M and, keeping the compass width the same, draw two arcs that intersect AB←→". After that you can draw arcs from intersection points (keeping the compass width same as before) to the opposite side of M, name it as N than use straightedge to draw line passes through M and n that would be perpendicular line to AB.

4 0
3 years ago
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