2 years ago

Look at images........

Mathematics

1 answer:

ruslelena [56]2 years ago

4 0

Answer:

$\pink{ \rule{1pt}{3000000pt}}$ $\red{ \rule{1pt}{3000000pt}}$ $\purple{ \rule{1pt}{3000000pt}}$

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The cost of a pair of jeans was changed from $47 to $42.13. What was the percent change?

zhenek [66]

Answer:

10.36

Step-by-step explanation:

$47 - $42.13 = $4.87
($4.87 ÷ $47) × 100 = 10.36%

6 0

4 years ago

The height of a parallelogram is 5 feet more than it's base. If the area of the parallelogram is 204 square feet, what is its ba

siniylev [52]

The base is x.
The height is 5 feet more than the base, so it's x+5.
The area of a parallelogram is the product of its base and its height. The area is 204 square feet.

$x(x+5)=204 \\
x^2+5x=204 \\
x^2+5x-204=0 \\
x^2+17x-12x-204=0 \\
x(x+17)-12(x+17)=0 \\
(x-12)(x+17)=0 \\
x-12=0 \ \lor \ x+17=0 \\
x=12 \ \lor \ x=-17$

The length of the base of a parallelogram must be a positive number, so x=12.

$\hbox{the base:} \\ x=12 \\ \\
\hbox{the height:} \\ x+5=12+5=17$

The base is 12 feet long, the height is 17 feet long.

8 0

3 years ago

Suppose that a rectangular piece of glass has a perimeter of 20 meters. If we multiply both its length and its width by 4, what

goldenfox [79]

Answer:

Answer B is the correct answer

Step-by-step explanation: :)

3 0

3 years ago

Byron placed bricks in a row to make a border that was 16.9 feet long. Each brick is 1.3 feet long.

Marina86 [1]

16.9/1.3

= 13 bricks (A)

Hope this helps!

4 0

3 years ago

Read 2 more answers

NEED HELP ASAP

joja [24]

Answer: 16517 dollars

Step-by-step explanation:

Given that x is the number of years after 2000.

In 2005, the number of years x = 4

Because the equation was modelled for 4 year college courses

The best estimate for the average cost of tuition in 2005 will be

ŷ = 937.98(4) + 12,764.90

Y = 3751.92 + 12764.9

Y = 16516.82 dollars

Y = 16517 dollars

4 0

4 years ago