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3 years ago

4x + 4 = 20 x = ? can you help me

1 answer:

3 0

Hey there! :D

4x+4=20

Subtract 4 on both sides. (the inverse of addition)

4x=16

Divide 4 by both sides, since 4 is being multiplied to x.

$x=4$

I hope this helps!
~kaikers

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What are the dimensions of this matrix?Help!!!

cupoosta [38]

Answer:

The dimensions ⇒ 3 × 4

Step-by-step explanation:

* Any matrix has two dimensions

- Raw and column

- The dimensions very important in the operations on matrices

- We called the number of raw m and the number of column n

- We must write the number of raw before the number of column

- m × n is the dimensions of the matrix

* Example : If the dimension of a matrix is 2 × 3, that

means the matrix has 2 raw and 3 column

* Now lets look to our problem

∵ It has 3 raw and 4 column

∴ Its dimensions is 3 × 4

4 0

3 years ago

Read 2 more answers

Shanice read a book that was 123 pages long. The first week, she read 67 pages. Then, she read the rest of the book over the nex

katrin2010 [14]

Answer:

She read 8 pages each day

Step-by-step explanation:

123 - 67 = 56

56/7 = 8

PLEASE GIVE BRAINLIEST THANK YOU

8 0

3 years ago

As part of your retirement plan, you want to set up an annuity in which a regular payment of $35,000 is made at the end of each

Finger [1]

Answer:

Option d)$401,447.24

Step-by-step explanation:

We are given that as part of your retirement plan, you want to set up an annuity in which a regular payment of $35,000 is made at the end of each year at rate of 6% compounded annually for 20 years

So first of all we need to find the future value of annuity using the formula as shown below :

$FV= p\frac{[(1+\frac{r}{n})^{(n)(t)}-1)]}{\frac{r}{n}}$

Here, FV = future value of annuity

p = $35000 (annual deposit)

r is rate = 6% = 0.06

n = number of compounding = 1 ( as we are compounding annually )

t = number of years = 20

So plugging in all the values in the formula , we get

$FV= 35000\frac{[(1+\frac{0.06}{1})^{(1)(20)}-1)]}{\frac{0.06}{1}}$

Simplifying further , we get

$FV= 35000\frac{[(1+0.06)^{20}-1)]}{0.06}$

Plugging in the given values in the calculator , we get

FV = $ 1287495.69

So far we have got the Total amount for annuity , from here we need to use the concept of compound interest and find the principal amount to be deposited to get the required total amount of $ 1287495.69

The formula for compound interest when compounded annually is given by:

$A=P(1+r)^t$

Here A = 1287495.69 (Total amount required)

P = ( principal amount to be deposited to meet the required total amount )

r = 6% = 0.06

t = 20

So plugging in all the known values in the formula , we get

$1287495.69= P(1+0.06)^{20}$

simplifying further, we get

$\frac{1287495.69}{(1.06)^{20}}= P$

so required amount to be deposited is given by :

P = $401,447.24

Hope it was helpful !:)

6 0

3 years ago

Which of the following number forms a pattern

cestrela7 [59]

Answer:

the answer is A since it forms a pattern :>

5 0

3 years ago

8 x (5 - 2) = ( _ x 5) - ( _ x 2)

Kobotan [32]

Answer:

8 x (5 - 2) = ( 8 x 5) - ( 8 x 2)

Step-by-step explanation:

8 x (5 - 2) = ( _ x 5) - ( _ x 2)

Distribute

8 x (5 - 2) = ( 8 x 5) - ( 8 x 2)

5 0

3 years ago