3 years ago

Can someone help me with this problem!

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

3 0

-5 I think

Ignore this this is just for 20 words

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the old price for school lunches is $5. The new price is $5.25. What is the percent increase in the cost if school lunches? Writ

Elanso [62]

p = 5.25-5.00/5.00

p =0.25/5.00

p=0.05 = 5% increase

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3 years ago

I need help!! Please help!!

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If she got a 100 on her last test the highest her average would be is an 87%

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3 years ago

What is a possible value for the missing term of the geometric sequence? 1250 , _ , 50 , ...

statuscvo [17]

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4 years ago

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Evaluate without using a calculator (x2y-3)0+x1/3-(4x)1/2 when x = 64 and y = 27. Show work.

aleksley [76]

Given:

The expression is:

$(x^2y-3)^0+x^{\frac{1}{3}}-(4x)^{\frac{1}{2}}$

To find:

The value of the given expression when $x=64$ and $y=27$ .

Solution:

We have,

$(x^2y-3)^0+x^{\frac{1}{3}}-(4x)^{\frac{1}{2}}$

Putting $x=64$ and $y=27$ , we get

$=((64)^2(27)-3)^0+(64)^{\frac{1}{3}}-(4(64))^{\frac{1}{2}}$

It can be written as

$=((64)^2(27)-3)^0+(4^3)^{\frac{1}{3}}-(4)^{\frac{1}{2}}(64)^{\frac{1}{2}}$

$=1+4-2(8)$ $[\because a^0=1,a\neq 0]$

$=5-16$

$=-11$

Therefore, the value of the given expression $-11$ when $x=64$ and $y=27$ .

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3 years ago

One day a store sold 32 sweatshirts, white ones cost $11.95 and yellow ones cost $11.50. in all, $373.40 worth of sweatshirts we

Scrat [10]

32=w+y, w=32-y...

11.95w+11.5y=373.4, using w from above gives us:

11.95(32-y)+11.5y=373.4

382.4-11.95y+11.5y=373.4

-.45y=-9

y=20

So 20 yellow and (32-20) 12 white shirts were sold.

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3 years ago

Read 2 more answers