3 years ago

Can someone please help

Mathematics

1 answer:

ryzh [129]3 years ago

3 0

I think the answer is 15 %

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4. At a school fair, 30% of the pies sold had cheese filling, 25% had beef filling and the remaining 90 pies had potato filling.

astra-53 [7]

Answer:

Step-by-step explanation:

a) Percentage of potato filling = 100 - (30 + 25) = 100 - 55 = 45 %

b) Let the number of pies sold = x

45% of x = 90

$\dfrac{45}{100}*x=90\\\\\\x=90*\dfrac{100}{45}\\\\\\x=2*100\\$

Number of pies = 200

c) Number of cheese filling = 30% of 200

$=\dfrac{30}{100}*200\\\\= 30*2\\\\\\= 60$

Number of beef pies = 25% of 200

$=\dfrac{25}{100}*200\\\\\\=25*2\\\\= 50$

Difference = 60 - 50 = 10

There are 10 more cheese pies than beef pies.

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2 years ago

Find a value for b so that the polynomial x^2+ bx + 25 factors to (x + 5)^2.

Marta_Voda [28]

Answer:

10 = b

Step-by-step explanation:

Begin by expanding (x + 5)^2

(x + 5)(x + 5)

First: x*x = x^2

Outside: x * 5 (the last term which is a 5)

Inside: 5+ x

Last: 5*5 = 25

x^2 + 5x + 5x + 25

x^3 + 10x + 25

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3 years ago

Jaizelyn is sewing pillow and quilt sets for a customer. Each set has 2 pillows and 1 quilt. She uses 0.75 yards of material for

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Set= 2 pillows + quilt
Set= (2×0.75)+12
Set= 13.5
3 sets= 3×13.5
3 sets=40. 5

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Answer:

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Step-by-step explanation:

hope's it helps you

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2 years ago