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KIM [24]
3 years ago
5

The length of Rebecca’s rectangular garden was two times the width “w”. She increased the length and width of the garden so that

the area of the new garden is (2w2+7w+6)square yards. By how much did Rebecca increase the length and width of the garden. Show your complete working.
Mathematics
1 answer:
Damm [24]3 years ago
6 0

Answer:

rebecca increased the length by 3 and the width by 2

Step-by-step explanation:

First we need to find the length and width by factorizing the expressio ofr the area;

A = 2w^2+7w+6

A = 2w^2+4w+3w+6

A = 2w(w+2)+3(w+2)

A = (2w+3)(w+2)

Since l = 2w

Length = 2w+3

width = w+2

This shows that rebecca increased the length by 3 and the width by 2

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Kraig deposited money into a money market account. It has an interest of 12% and is compounded annually. Kraig thought 3% would
Klio2033 [76]

Answer:

<u>If the amount is P, with the interest rate of 12%, the interest over the year is:</u>

  • P*(1.12) - P = 0.12P

<u>In this case the quarterly interest rate is:</u>

  • 0.12P/4 = 0.03P

<u>With the same amount and 3% quarterly rate, the yearly interest would be:</u>

  • P*(1.03)^4 - P = 0.1255P

<u>The quarterly interest rate in this case is:</u>

  • 0.1255P/4 = 0.031375P

If the quarterly interest rate is r, it should be little less than 3% to yield a 12% yearly rate.

So Kraig is wrong.

7 0
3 years ago
Wayne bought an engagement ring for Tracy.
ohaa [14]
It would be: 420 + (420 * 17.5%)
= 420 + (420 * 0.175)  [ 17.5% = 0.175 ]
= 420 + 73.5
= 493.5

In short, Your Answer would be <span>£493.5

Hope this helps!</span>
4 0
3 years ago
Read 2 more answers
Need help on this one please answer asap
Oliga [24]
First find the hourly rate by dividing $187 by 11 hours. That yields $11 per hour. Now multiple the $11/hour rate by 8 hours of work resulting in $88.
8 0
3 years ago
Evaluate the polynomial 6x - y for x= -3 and Y=2.<br> A.15 <br> B. -20<br> C.4<br> D.-16
ra1l [238]
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6 0
2 years ago
2) A fair coin was tossed 75 times. The coin landed on Heads 42 times and Tails 33 times. What is the experimental probability o
coldgirl [10]

Answer:

\frac{11}{25}

Step-by-step explanation:

In the experiment that was conducted the coin was tossed a total of 75 times and out of those times it only landed on tails 33 times. Therefore the experimental probability of the coin landing on tails can be calculated by the dividing the times it landed on tails by the total number of times it was tossed. Like so...

\frac{33}{75} or 0.44

This fraction can also be simplified to its simplest form of \frac{11}{25} which is obtained by dividing both the numerator and denominator by 3

5 0
2 years ago
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