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omeli [17]
3 years ago
14

How to solve 2-7d=15

Mathematics
2 answers:
melomori [17]3 years ago
6 0

Answer:-7d=13

7d=-13

d=-13/7

Step-by-step explanation:

Hope this helps!

Make sure to apply same operations to both sides.

ollegr [7]3 years ago
4 0

Explanation: To solve for <em>d</em> in this problem, the first thing we want to do is subtract 2 from both sides of the equation in order to get the <em>d</em> term by itself.

On the left side, 2 - 2 cancels and here is the tricky part. Make sure you understand that we're left with a -7d on the left side of the equation. Students often forget to bring down the negative.

On the right side we have 15 - 2 which simplifies to 13.

Now to get <em>d</em> by itself we just divide both sides of the equation by -7.

The -7's cancel so we have 13 divided by -7 which is about -1.85714285714.

So <em>d = -1.85714285714</em>.

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Explanation:

Both sides of the equation are squared.

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I like this better without fractions, so would multiply by 16 at this point (or earlier).

  x^2 -40x +144 = 0

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3 0
3 years ago
Katherine invested $86,000 in an account paying an interest rate of 52%
earnstyle [38]

Answer: $4,331‬

Step-by-step explanation:

I will assume that the question meant 5.2% not 52% as this is quite excessive.

Katherine after 13 years.

Convert the variables;

n = 13 years = 13 * 365 = ‭4,745‬ days

r = 5.2% = 5.2/365 = 5.2/365%

Future value = P * ( 1 + r)^n

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Michael after 13 years;

If compounded continuously, the formula is;

Future value = Pe^rt

= 86,000 * e⁰.⁰⁵ ˣ ¹³

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5 0
3 years ago
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3 0
4 years ago
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Answer: 8(u - 10)

Step-by-step explanation:

8 0
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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