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stealth61 [152]
3 years ago
11

Did I do number 4 correctly?

Mathematics
2 answers:
Masja [62]3 years ago
5 0
The photo is not clear. nobody can see it.
Elenna [48]3 years ago
5 0
No, you did it incorrectly. The answer is y=-3
How I did this was;
2y+x=-15 x=3y
2y+3y=-15
If you multiply a whole number by a negative number you get a negative number, so I found a, number that could be multiplied into two different numbers that cloud be added together to have a sum of -15.
I really hope that made sense.
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Find the principal that will yield a simple interest of Rs 9000 in 5 years at a rate of 6% per annum.
damaskus [11]

9514 1404 393

Answer:

  ₹ 30000

Step-by-step explanation:

The simple interest formula is ...

  I = Prt . . . . . . principal P invested at rate r for t years

Fill in the values you know, and solve for the one you don't know.

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3 years ago
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julia-pushkina [17]

Answer:

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Step-by-step explanation:

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3 years ago
An observer 2.5 miles from the launch pad of a space shuttle measures the angle of elevation to the base of the shuttle to be 25
kotegsom [21]

Answer:

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Step-by-step explanation:

Refer the given figure.

C is the position of rocket and B is the position of observer.

Here we need to find AC, that is the height of shuttle at that instant.

Using trigonometric rules on ΔABC, we have

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5 0
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lozanna [386]

Step-by-step explanation:

f(x) = 2x + 5 = 45

2x + 5 = 45

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7 0
4 years ago
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