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Nana76 [90]
3 years ago
11

The length of a rectangle is 3 feet more than twice the width. The perimeter is 128 feet. Find the length and width.

Mathematics
2 answers:
pashok25 [27]3 years ago
7 0
Let the width be x feet.

length = 2x + 3 feet

Perimeter = 2x + 2(2x + 3) = 128

6x + 6 = 128

6x = 122

x = 20 1/3

width = 20 1/3   Answer

Length = 2(20 1/3) + 3 =  43 2/3 feet Answer
marishachu [46]3 years ago
6 0
44.6 meters is the length, and the width is 19.3 meters.
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Mary has $65,000 to invest in two accounts. The first account is a private savings offering 6% annual interest and the second ac
const2013 [10]

Answer:

first account with 6% interest ( x ) = $46000

second account with 4% interest ( y ) = $19000

Step-by-step explanation:

Principal = $65000

first interest rate = 6%

second interest rate = 4%

assuming ; X = money invested in first account ,  Y = money invested in second account

hence :

( 65000 - y ) * 6% + ( 65000 - x ) * 4% = 3520

3900 - 0.06 y  + 2600 - 0.04 x = 3520

0.04 x + 0.06 y = 3900 + 2600 - 3520

0.04 x + 0.06 y = 2980 ----- ( 1)

        x + y = 65000  ------- ( 2 )

solve equation 1 and 2 simultaneously by elimination method

0.04 x + 0.06 y = 2980 ------  ( 3 )

0.06 x + 0.06 y = 3900 ------- ( 4 )

subtract equation 3 form equation 4

0.02 x  = 920 ,   hence x = $46000

therefore y = $65000 - $46000 =  $19000

6 0
3 years ago
Eli's family starts with 2 whole pizzas. they eat 1 3/8 pizzas. how much pizza do they have left?
Tresset [83]

The Correct Answer Is...

<u><em>5/8!</em></u>


Any Questions? Comment Below!

<u><em>-AnonymousGiantsFan</em></u>

8 0
3 years ago
Which theorem or postulate proves that △ABC and △DEF are similar?
yan [13]

Answer:

△ABC and △DEF are similar by SAS Similarity Theorem.

Option (C) is correct .

Step-by-step explanation:

Definition of SAS Similarity property

Two triangles are said to be similar by SAS Similarity property If two sides are proportional and one corresponding angle congruent .

In △ABC and △DEF

\frac{ED}{AB}= \frac{7}{21}

\frac{ED}{AB}= \frac{1}{3}

and

\frac{EF}{BC}= \frac{11}{33}

\frac{EF}{BC}= \frac{1}{3}

Thus

\frac{ED}{AB}=\frac{EF}{BC}= \frac{1}{3}

∠ABC = ∠DEF  (As given in the figure )

Thus △ABC and △DEF are similar by SAS Similarity property .

7 0
2 years ago
Read 2 more answers
Subtract a number plus 6 from a number minus 10
mash [69]

Answer:

(n+6)-(n-10)

Step-by-step explanation:

n is the number.

plus means addition

minus means subtraction

6 0
3 years ago
Mrs.cyan paid $105 for flower boxes. each flower box cost $7. how many flowers did she buy
Ede4ka [16]

Answer:

15

Step-by-step explanation:

To find how many she bought, we have to divide. So we do 105/7=15.

8 0
2 years ago
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