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3 years ago

19. Write the perimeter of the rectangle as a simplified expression. x - 3 7x + 1

Mathematics

1 answer:

alexandr402 [8]3 years ago

6 0

Answer:

16x - 5

Step-by-step explanation:

2(x-3) + 2(7x+1) since there are 4 sides, 2 which have the same dimensions

2x - 6 + 14x + 1 = 16x - 5

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Find the area of the composite shape below.

Greeley [361]

Answer:

(16×16) +(32×8)

256+256

512m²

3 0

3 years ago

14. At the museum, the O'Rourke family

vekshin1

Answer:

$\large \boxed{A = \$5.50; C = \$3.50}$

Step-by-step explanation:

Let A = cost of adult ticket

And C = cost of child's ticket. Then,

$\begin{array}{rcll}(1) \qquad 3A + 2C & = & 23.50&\\(2) \qquad 2A + 4C & = &25.00&\\(3) \qquad 6A + 4C & = &47.00&\text{Doubled (1)}\\4A & = & 22.00&\text{Subtracted (2) from (3)}\\(4) \qquad \qquad \quad A & = & \mathbf{5.50}&\text{Divided each side by 4}\\\end{array}\\$

$\begin{array}{rcll}11.00 + 4C & = &25.00& \text{Substituted(4) into (2)}\\4C &=& 14.00&\text{Subtracted 11.00 from each side}\\C &=& \mathbf{3.50}&\text{Divided each side by 4}\\\end{array}\\\text{The ticket costs are $\large \boxed{\mathbf{A = \$5.50; C = \$3.50}}$}$

Check:

$\begin{array}{cccl}3(5.50) + 2(3.50) = 23.50 & \qquad & 2(5.50) + 4(3.50) = 25.00\\16.50 + 7.00 = 23.50 & \qquad & 11.00 + 14.00 = 25.00\\23.50 = 23.50 & \qquad & 25.00 = 25.00\\\end{array}$

OK.

7 0

3 years ago

Can some help pleasee????

liraira [26]

Answer:

Step-by-step explanation:

its the same problem, it's just swapped.

example:

(2•6)+2 = 14

2+(2•6)= 14

3 0

2 years ago

PLEASEEEE SOMEONE HELPP WIRH THIS ANSWERER

mr_godi [17]

Y=X-5 is the answer

8 0

2 years ago

Read 2 more answers

A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation?

julia-pushkina [17]

For the answer to the question above, a system of equations has no solution when the lines representing the equation are parallel but do not coincide. For two lines to be parallel, the must have the same gradient i.e. coefficient of x when y is made the subject of formula must be equal.
If one of the equations is
y = 8x + 7,
then the other equation will be
y = 8x - 7

5 0

3 years ago