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4 years ago

5

Jamie had $37 in his bank account on Sunday the table shows his account activity for the next 4 days what was the balance and Ja

mie's account after his deposit on Thursday

1 answer:

Ilya [14]4 years ago

5 0

What is the table showing?

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maddy had twice as many stamps as simon. After maddy sold 60 stamps, simon had twice as many stamps as maddy. how many more stam

Gennadij [26K]

Answer: 40 stamps

Step-by-step explanation:

Let Maddy = M and Simon = S

Given that maddy had twice as many stamps as simon. That is,

M = 2S ....(1)

After maddy sold 60 stamps, simon had twice as many stamps as maddy. That is,

S = 2( M - 60) .... (2)

Substitutes M for 2S from equation (1) into equation (2)

S = 2( 2S - 60 )

Open the bracket

S = 4S - 120

Collect the like terms

S - 4S = -120

- 3S = - 120

S = 120/3

S = 40

Substitute S into the equation (1)

M = 2 × 40 = 80

Maddy has 80 - 40 = 40 stamp

Therefore, Maddy has 40 more stamps than simon in the beginning.

3 0

3 years ago

What is the sum of the series *picture attached*

Ksivusya [100]

Answer:

$\sum_{n=4}^{18}(n+1)^2=2440$

Step-by-step explanation:

Series: $\sum_{n=4}^{18} (n+1)^2$

Formula : $\sum_{k=m}^n=\sum_{k=1}^n-\sum_{k=1}^{m-1}$

$\Rightarrow \sum_{n=4}^{18}(n+1)^2=\sum_{n=1}^{18}(n+1)^2-\sum_{n=1}^{3}(n+1)^2$

$\sum_{n=1}^{18}(n+1)^2=2469$

$\sum_{n=1}^{3}(n+1)^2=29$

$\Rightarrow \sum_{n=4}^{18}(n+1)^2=2469-29$

$\Rightarrow \sum_{n=4}^{18}(n+1)^2=2440$

So, Option C is true

8 0

3 years ago

Nick and his family traveled by train to New York City. The clocks show when the train left the station and when it arrived in N

Delvig [45]

Answer:4 hr 15 min is the right answer

5 0

3 years ago

Read 2 more answers

What is $2.10 divided by 6

choli [55]

$0.35, use long division and divide 2.10 by 6, carry the decimal up and divide.

3 0

3 years ago

Find the volume using the formula V= πr2h

Dimas [21]

Answer: $V=254.46\ in^3$

Step-by-step explanation:

The formula for calculate the volume of a cylinder is the one given in the exercise:

$V=\pi r^2h$

Where "r" is the radius and "h" is the height of the cylinder.

You need to observe the figure given in the exercise. You can notice that the radius and the height of that cylinder are the following:

$r=3\ in\\\\h=9\ in$

Then, knowing those values, you can substitute them into the formula:

$V=\pi (3\ in)^2(9\ in)$

Finally you must evaluate in order to find the volume of the cylinder. You get the following result:

$V=\pi (9\ in^2)(9\ in)\\\\V=81\pi\ in^3\\\\V=254.46\ in^3$

7 0

3 years ago