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3 years ago

Ribbon sells for $3.75 per yard. Find the cost, in dollars, for 48 inches of ribbon.

Mathematics

1 answer:

Leto [7]3 years ago

7 0

Answer:

4.9875

if rounding then 5 dollars

Step-by-step explanation:

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2 sin^2 (x) + 3 sin (x) + 1 = 0<br> help me find the solution

Fed [463]

Answer:

Step-by-step explanation:

\[2~ sin^2 x+3sin x+1=0\]

\[2sin^2x+2sin x+sin x+1=0\]

2sinx(sin x+1)+1(sin x+1)=0

(sin x+1)(2 sin x+1)=0

either sin x+1=0

sin x=-1=sin 3π/2=sin (2nπ+3π/2)

x=2nπ+3π/2,where n is an integer.

or 2sin x+1=0

sin x=-1/2=-sin π/6=sin (π+π/6),sin (2π-π/6)=sin (2nπ+7π/6),sin (2nπ+11π/6)

x=2nπ+7π/6,2nπ+11π/6,

where n is an integer.

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2 years ago

a jewerly shop shop sells 240 necklaces in a month. 180 of the necklaces were sold via the shops, website, the rest were sold in

Hunter-Best [27]

Answer:

<h3>The workout ratio of the online sales to shop sales is 1:3.</h3>

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2 years ago

List two ordered pairs on the graph of y = 3x + 2 <br> A. 2,7 , 3,9<br> B. 2,8 , 3,11

cricket20 [7]

The answer is b. 2,8 and 3,11
8=3(2)+2
8=6+2
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11=3(3)+2
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3 years ago

WILL GIVE A BRAINLEST AND 50PTS FOR CORRECT ANSWER THANXS!!!!!!!!!!!!!!!!!!!

DochEvi [55]

D. (xy2 + 3z14)(x2y4 – 3xy2z14 + 9z28

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3 years ago

Read 2 more answers

Julio bought 4 pencils and 3 erasers for $0.37 and David paid $0.33 for 3 pencils and 4 erasers. What is the cost of one pencil?

grigory [225]

cost of pencil = x = 0.07

and cost of eraser = y = 0.03

Step-by-step explanation:

let cost of pencil = x

and cost of eraser = y

So, we have equations:

$4x+3y=0.37\\3x+4y=0.33$

Solving both equations to find value of x and y

Let:

$4x+3y=0.37\,\,\,eq(1)\\3x+4y=0.33\,\,\,eq(2)$

Multiply eq(1) with 4 and eq(2) with 3 and subtract

$16x+12y=1.48\\9x+12y=0.99\\-\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,-\\--------\\7x=0.49\\x=0.07$

Putting value of x in equation 1:

$4x+3y=0.37\\4(0.07)+3y=0.37\\0.28+3y=0.37\\3y=0.37-0.28\\3y=0.09\\y=0.03$

So, x= 0.07 and y = 0.03

cost of pencil = x = 0.07

and cost of eraser = y = 0.03

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

4 0

3 years ago