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MAXImum [283]
2 years ago
10

X+4,x+12,x-1 and x+5 are in proportion.find the value of x

Mathematics
1 answer:
Anastaziya [24]2 years ago
5 0

Answer:

Step-by-step explanation:

As they are in proportion,

x +4  : x +12   :: x -1  : x + 5

Product of means  = Product of extremes

(x + 12)(x -1) = (x +4)(x+5)

Use FOIL method for polynomial multiplication

x*x + x*(-1) + 12*x + 12*(-1) = x*x +  x*5  + 4*x + 4*5

x² - x + 12x - 12 = x² + 5x + 4x + 20

Combine like terms

x² + 11x - 12 = x² + 9x + 20

x² + 11x - 12 - x² - 9x - 20 = 0

Combine like terms

x² - x² + 11x -9x   -12 -20 = 0

2x - 32 = 0

2x = 32

x = 32/2

x = 16

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Parvana record's the transactions for her bank account for the week . On Monday, she made a deposit of $45. On Tuesday she used
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Answer:

The correct answer is +45; -18; -7.

Step-by-step explanation:

Parvana records the transactions for her bank account for the week .

On Monday, Parvana deposited $45. Thus Parvana made an addition of $45 in her account. Therefore a +45 integer is used to represent this transaction into her account.

On Tuesday she used her debit card to $18 for a new shirt. Thus Parvana made a deduction of $18 from her account. Therefore a -18 integer is used to represent this transaction into her account.

On Thursday she withdrew $7 from an ATM. Thus Parvana made a deduction of $7 from her account. Therefore a -7 integer is used to represent this transaction into her account.

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6 0
3 years ago
7 video games for $188.88. How much per game?<br> answer ASAP
Jet001 [13]

Answer:

but it might not be direct

26

Step-by-step explanation:

188.88÷7=26

6 0
3 years ago
The perimeter of a kite is 52 meters. If one side measures 19 meters find the measure of the opposite side.
Setler [38]

For any kite, we have two pairs of congruent adjacent sides. In general, the kite would have sides of x, x, y , y. In this case, x = 19 is known while y is unknown.

The four sides add up to 52, so

x+x+y+y = perimeter

19+19+y+y = 52

38+2y = 52

2y+38-38 = 52-38 .... subtract 38 from both sides

2y = 14

2y/2 = 14/2 ... divide both sides by 2

y = 7

Therefore the opposite side of the 19 meter side is 7 meters

<h3>Answer: B) 7 meters</h3>
3 0
3 years ago
Read 2 more answers
NEED THE ANSWER ASAP <br> MARKING BRAINLIEST
Phantasy [73]

Answer:

A=74.24 f^2

Step-by-step explanation:

Triangle:

1/2 x 6x 8

=24

Half a circle

3.14x 4^2 ÷ 2

=25.12

Then plus it together

24+25.12

=49.12 ft

3 0
3 years ago
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