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givi [52]
4 years ago
7

In 2012, five US stamps cost $2.20. how much did seven stamps cost?

Mathematics
1 answer:
WINSTONCH [101]4 years ago
6 0
7 stamps* ($2.20/ 5 stamps)= $3.08.
(Note that the unit cancels out so you get the answer)

The final answer is $3.08~
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Mason opens a savings account by making a $165. 85 deposit. Every week, he deposits another $20. 50 in the account. Write an exp
Lana71 [14]

Algebraic expression is the expression which consists the unknown variables, constant and coefficients of variables. The expression that shows the amount of money that will be in the account <em>x</em><em> </em>weeks after Mason opens it is,

f(x)=165.85+20.5x

Hence the option 4 is the correct option.

Given information-

Mason opens a savings account by making a $165.85.

The money deposit by Mason every week is $20.50.

<h3>Algebraic expression-</h3>

Algebraic expression is the expression which consists the unknown variables, constant and coefficients of variables.

The algebraic expressions use to represent the set of condition of a problem in a mathematical way.

As the initial amount deposit by Mason is $165.85. Thus this amount is fixed and not going to change with the further deposit.

The money  deposit by Mason every week is $20.50. This money is not fixed and increased by $20.50 every week. Thus this is a variable amount.

Therefore the algebraic expression for the given condition can be given as,

f(x)=165.85+20.5x

Thus the expression that shows the amount of money that will be in the account <em>x</em><em> </em>weeks after Mason opens it is,

f(x)=165.85+20.5x

Hence the option 4 is the correct option.

Lear more about the algebraic expression here;

brainly.com/question/953809

4 0
3 years ago
Can someone help me with a and b
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3 years ago
W-1/2=-2/5<br> solve for w
tino4ka555 [31]

Answer:

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Step-by-step explanation:

w-1/2=-2/5

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4 years ago
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Eva8 [605]

Answer:

200 cm^2

Step-by-step explanation:

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2. double

3. 20*10 = 200

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8 0
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