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Arturiano [62]
3 years ago
8

The science teacher needs 32 hand lenses. She already has 24. Hand lenses come in packages of 8. How many packages should she or

der to have a total of 32 hand lenses
Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

1 package

Step-by-step explanation:

First you subtract 32 and 24 which gets you 8. 8 divided by 8 is 1. This means that you will only need 1 package.


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olasank [31]

Answer:

V=\pi r^{2} h

Step-by-step explanation:

Use this above formula to calculate the volume of any cylinder.

Where V is for volume, r is for radius, and h is for height.

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What is the solution to the system of equations graphed below
Morgarella [4.7K]
Equation 1 ==> y = -4x + 2
Equation 2 ==> y = x - 3

Substitude equation 2 into 1

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A bank advertises that it compounds money quarterly and that it will take Double your money in 10 years. what is the interest-ra
S_A_V [24]

The interest rate is 6.992%, if a bank advertises that it compounds money quarterly and that it will take Double your money in 10 years.

Step-by-step explanation:

The given is,

                          Compounds money quarterly

                          Double your money in 10 years

Step:1

              Formula to calculate future investment with compounded quarterly,

                                                        A =P(1+\frac{r}{n} )^{nt}...............................(1)

              Where, A - Future amount

                           P - Initial investment\

                            r - Rate of interest

                            n - No. of compounding in a year

                             t - No. of years

Step:2

               Let, P = X

                      A = 2X ( Double your money )

              From given, n - 4 ( for compounding quarterly )

                                    t - 10 years

               From equation (1)

                                                        2X =X(1+\frac{r}{4} )^{(4)(10)}

                                                         \frac{2X}{X}  =(1+\frac{r}{4} )^{(4)(10)}

                                                            2  =(1+\frac{r}{4} )^{40}

          Take root 40^{th} root on both side,

                                                         \sqrt[40]{2} = (1+\frac{r}{4} )

                                            1.017479692 = (\frac{4+r}{4} )

                                     (1.017479692)(4) = (r+4)

                                                  4.06992=(r+4)

                                                              r = 4.06992 -4

                                                              r =( 0.06992)(100)

                                                              r = 6.992 %

Result:

             The interest rate is 6.992%, if a bank advertises that it compounds money quarterly and that it will take Double your money in 10 years.

3 0
3 years ago
2,12,72,432 what is the formula?
egoroff_w [7]

Answer: The formula is x6

Step-by-step explanation:

4 0
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