3 years ago

Find the unit rate. Then write which is the better buy. $0.90 for 2 pens or $1.75 for 5 pens

Mathematics

1 answer:

shtirl [24]3 years ago

3 0

Answer:

2 pens for $0.90 is better

Step-by-step explanation:

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If n + 10 = 45.5, then what is the value of the expression n - 25?

Citrus2011 [14]

Answer: 90

Step-by-step explanation:

45.5-.5=45

45^2=90

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3 years ago

I think of a number. If I divide the sum of 6 and the number by 3,the result is 4 more than one quarter of the number. Find the

Alex17521 [72]

Answer:

Step-by-step explanation:

Let the number be x.

Sum of the number and 6: $6+x$

Divide it by 3: $\frac{6+x}{3}$

Result is 4 more than one quarter of the number:

$\frac{6+x}{3} =4+\frac{1}{4} x$

Multiply both sides by 12:

$\frac{6+x}{3}\cdot \:12=4\cdot \:12+\frac{1}{4}x\cdot \:12$

Simplify:

$4\left(x+6\right)=48+3x$

Expand:

$4x+24=48+3x$

Subtract 24 from both sides:

$4x+24-24=48+3x-24$

$4x=3x+24$

Subtract 3x from both sides:

$4x-3x=3x+24-3x$

$x=24$

The number is 24.

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2 years ago

Alex has a rectangle piece of red paper that is 4 centimeter wide .its length is twice it's width she glues a piece of paper blu

xenn [34]

4cm•2=8cm which is the length of the red paper so therefore Red paper= 4cmx8cm.
Then your going to take 3cm-4cm= 1cm
Next your going to solve for 7cm-8cm=1cm
Which leaves you with an answer of 1cmx1cm more of visible red paper.

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3 years ago

Part 1) You deposit $100 in a bank account that earns 5% interest, compounded monthly.

insens350 [35]

1) A=100(1+0.05/12)^12t
2) 125=100(1+0.05/12)^12t
125/100=(1+0.05/12)^12t
Log(125/100)=12t*log(1+0.05/12)
12t=log(125÷100)÷log(1+0.05÷12)
t=[log(125÷100)÷log(1+0.05÷12)]/12
T=4.5 years

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3 years ago

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Mrrafil [7]

Answer: COSINE

Step-by-step explanation:

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