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bogdanovich [222]
3 years ago
9

Laura has 45 buttons. She gives away b buttons. Write an expression that shows the number of buttons Laura has left.

Mathematics
2 answers:
USPshnik [31]3 years ago
6 0
Giving away indicates subtraction. Therefore, the expression is 45 - b.
xenn [34]3 years ago
4 0
45 - b = number of buttons she has left
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if 36 cookies cost $4.00 what is the unit rate in cookies per dollar. Using the same information what is the unit rate for 1 coo
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3 years ago
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tensa zangetsu [6.8K]

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Let MR= x

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⇒ RQ=  \frac{x}{tan 60^{\circ}}

On equating both values of RQ,

\frac{18+x}{tan 75^{\circ}}=\frac{x}{tan 60^{\circ}}

⇒\frac{18+x}{x}=\frac{tan 75^{\circ}}{tan 60^{\circ}}

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3 years ago
What is the estimated sum?
lyudmila [28]

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