The expression 5 1/2x + 6 represents the perimeter of

Mathematics

2 answers:

andreev551 [17]2 years ago

4 0

L=bxh|2 :) give me brainliest pls

bazaltina [42]2 years ago

3 0

Length=[ 5 1/2x + 6 - 2( 1/4x+2 ) ]*1/2
=[ 11/2x + 6 - 1/2x - 4 )*1/2
=( 5x + 2 )*1/2
=5x/2 + 1

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One family spends $134 on 2 adult tickets and 3 youth tickets at an amusement park. Another family spends $146 on 3 adult ticket

AnnZ [28]

3x + 2y = $134
2x + 3y = $146

Using elimination to solve for x

9x +6y = 3*134 Multiplying 1st equation by 3

-4x -6y = -2*146 | Multiplying 2nd equation by -2

5x = 3*134 - 2*146

5x = $110

x = $22, the cost of the youth ticket

Put x= 22 Into An Equation Then Solve For y

3(22)+2y= 134
66+ 2y=134
Subtract 66
2y=68
Y= 34

CHECKING Answer ($34 being the cost of the adult ticket) y = (134-3*22)/2

3*$22 + 2*$34 = $66 + $68 = $134

8 0

3 years ago

2/3 times what equals 10?

Aleks [24]

You have to divide 10 by $\frac{2}{3}$

$\frac{10}{1}$ ÷ $\frac{2}{3}$ ⇒ $\frac{10}{1}$ x $\frac{3}{2}$

You use a method called "flip-flop and multiply" where you flip the second fraction to multiply
$\frac{10}{1}$ × $\frac{3}{2}$ ⇒ $\frac{30}{2}$

Now divide the numerator (top) by the denominator (bottom)

$30
$ ÷ $3=15$

Now lets check:

$\frac{2}{3} * \frac{15}{1} = \frac{30}{3}$

$30$ ÷ $3=10

$

Answer: $\frac{2}{3}$ × $15=10$

8 0

3 years ago

Read 2 more answers

Solve by using the quadratic formula: x^2 - 6x + 7 = 0 Please enter any square root values using "sqrt" or the decimal answer ro

olga nikolaevna [1]

Given parameters:

Quadratic expression:

x² - 6x + 7 = 0

Solve using quadratic formula;

x = $\frac{-b +/- \sqrt{b^{2 } - 4ac} }{2a}$