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Gelneren [198K]

2 years ago

12

The number 18 is increased to 19. What is the percentage by which the number was

1 answer:

telo118 [61]2 years ago

6 0

Answer:

5.6%

Step-by-step explanation:

The formula used is the change divided by the original amount, then converted to a percentage by multiplying by 100.

You might be interested in

(ax + b) × (cx + d) =

Stolb23 [73]

These are easy if you know " FOIL ". That's a procedure that takes you through multiplying two binomials.

FOIL stands for
-- <u><em>F</em></u>irst terms
<span>-- </span><u><em>O</em></u>utside terms
<span>--<em> </em></span><u><em>I</em></u>nside terms
<span>--<em> </em><u><em>L</em></u></span>ast terms

and that's how you keep everything straight while you're doing it.

(ax + b) x (cx + d)

Multiply First terms . . . 'ax' times 'cx' = <em>acx²</em>

Multiply Outside terms . . . 'ax' times 'd' = <em>adx</em>

Multiply Inside terms . . . 'b' times 'cx' = <em>bcx</em>

Multiply Last terms . . . 'b' times 'd' = <em>bd</em>

Now addummup:

(ax + b) x (cx + d) = <em>acx² + adx + bcx + bd</em>

From there, you can look for opportunities to make it look cleaner and prettier ... factoring, combining like terms, etc.

7 0

4 years ago

Read 2 more answers

Find the area of the triangle.<br> A. 73.6ft^2<br> B. 65.8 ft^2<br> C. 69.1 ft^2<br> D. 70.8 ft^2

spayn [35]

Please look at the picture for a step by step explanation - Answer choice is A

3 0

3 years ago

A rectangular garden has a length of (2y - 4) feet and a width of 4y^2 feet. How do you find the perimeter of the garden

Ber [7]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{8 {y}^{2} + 4y - 8}}}}}$

Step-by-step explanation:

Given,

Length of a rectangular garden ( l ) = 2y - 4

Width of a rectangular garden ( w ) = 4y²

Perimeter of the garden = ?

<u>Finding</u><u> </u><u>the</u><u> </u><u>perimeter</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>rectangular</u><u> </u><u>garden</u><u> </u><u>having </u><u>length </u><u>of</u><u> </u><u>2</u><u>y</u><u>-</u><u>4</u><u> </u><u>and</u><u> </u><u>width</u><u> </u><u>of</u><u> </u><u>4</u><u>y</u><u>²</u>

$\bold{ \boxed{ \sf{perimeter \: of \: a \: rectangle = 2(l + w)}}}$

$\longrightarrow{ \sf2(2y - 4 + 4 {y}^{2}})$

Distribute 2 through the parentheses

$\longrightarrow{ \sf{4y - 8 + 8 {y}^{2} }}$

Arrange it in standard form

$\longrightarrow{ \sf{8 {y}^{2} + 4y - 8}}$

Hope I helped!

Best regards! :D

3 0

4 years ago

The sum of two integers is 54 and the difference is 10. Fin the integers

Setler [38]

Answer:x + y = 54

x - y = 10

Add them to get: 2x = 64

x = 32

and plugging in x = 32 to either equation: y = 22

Ans: the numbers are 22 and 32

Step-by-step explanation:

4 0

4 years ago

HELPPPPPP WILLLL GIVE EXTRAAA POINTSSS AND BRAINLIEST JUST FOR THE ANSWERS SAY THE WHOLE THING SO ITS EASIER

nadezda [96]

<u>Here are your fill-ins:</u>

r = 1 is a zero, so (r-1) is a factor.

r = -1 is a zero, so (r+1) is a factor.

The remainders from synthetic division are 0 each time.

See the attachment for the synthetic division numbers.

_____

The reduced quadratic is ...

... x² -6x +13 = 0

Solving by completing the square, we have ...

... (x -3)² = -4

... x = 3 ± 2i

_____

The quadratic formula would tell you ...

... x = (-(-6) ± √((-6)² -4(1)(13)))/(2·1) = (6±√-16)/2 = 3±2i

6 0

3 years ago