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3 years ago

You deposit $2,000 into a saving account that gains 7% interest each year. How long will it take for your balance to

Mathematics

1 answer:

Vinil7 [7]3 years ago

5 0

Answer:

its simple just divide and multipy it by 100%

Step-by-step explanation:

here

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2.) You are buying gifts for 10 people. You decide to buy each person either a CD or a

Katena32 [7]

Answer:

a. The number of DVDs is 10 - c

b. The cost of the CDs is 12c

c. The cost of the DVDs is 20(10 - c)

d. The total cost of all gifts is 200 - 8c

Step-by-step explanation:

* <em>Lets explain how to solve the problem</em>

- You are buying gifts for 10 people

# You will buy 10 gifts

- The gifts are CD or DVD

# The total numbers of CDs and DVDs is 10

- The cost of each CD is $12 and the cost of each DVD is $20

# c is the number of CDs

∵ You buy c CDs

∵ The total numbers of CDs and DVDs is 10 as we said up

∴ c + the numbers of DVDs = 10

- Subtract c from both sides

∴ The number of DVDs = 10 - c

* The number of DVDs is 10 - c

∵ The number if CDs is c

∵ The cost of each CD is $12

∴ The cost of the CDs = 12 × c = 12c

* The cost of the CDs is 12c

∵ The number of DVDs is 10 - c

∵ The cost of each DVD is $20

∴ The cost of the DVDs = 20(10 - c)

* The cost of the DVDs is 20(10 - c)

∵ The cost of the CDs is 12c

∵ The cost of the DVDs is 20(10 - c)

- The total cost of all the gifts is the sum of the costs of CDs and DVDs

∴ The total cost of all gifts = 12c + 20(10 - c)

- Multiply the bracket by 20

∵ 20(10 - c) = 100(2) - 20(c) = 200 - 20c

∴ The total cost of all gifts = 12c + 200 - 20c

- Add like terms

∴ The total cost of all gifts = 200 - 8c

* The total cost of all gifts is 200 - 8c

3 0

3 years ago

67+65+ what gives me 180

Serga [27]

Answer:

48.

Step-by-step explanation:

To find the missing number write out the equation :

67 + 65 + ? = 180.

67 + 65 = 132

To find out how much more we need you can minus 132 from 180.

180 - 132 = 48.

Plug it in to see if it works.

67 + 65 + 48 does equal 180.

Hope this helps,

Davinia.

4 0

3 years ago

Which equation gives the number of 1/3 inches that are in 5/6inch?

Annette [7]

Answer:

$2\frac{1}{2}$

Step-by-step explanation:

Let

x ----> the number of 1/3 in that are in 5/6 in

To find out the number of 1/3 in that are in 5/6 in, divide 5/6 by 1/3

$x=\frac{5}{6}:\frac{1}{3}$

Multiply in cross

$x=\frac{15}{6}$

Convert to mixed number

$\frac{15}{6}=\frac{12}{6}+\frac{3}{6}=2\frac{3}{6}=2\frac{1}{2}$

5 0

4 years ago

You have prizes to revea

MissTica

Answer:

Yes

Step-by-step explanation:

The domain is {-19, 19}

The range is {0,16}

We can write as ordered pairs to obtain:

(-19,0), (19,16)

None of the first coordinates of the ordered pairs repeats.

Hence the relation represents a function.

See attachment for mapping diagram.

8 0

3 years ago

What is the y-intercept<br> of this line?<br> please help asap

mixer [17]

Answer: 9 because of the (0,9)

Step-by-step explanation:

8 0

3 years ago