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3 years ago

Cynthia makes 4 deposits of $50 each and 3 withdrawals of $75 each. What is the total change in Cynthia's account?

Mathematics

2 answers:

scoray [572]3 years ago

8 0

Answer:

$-25

Step-by-step explanation:

(4*50) - (3*75)

200 - 225

-25

Nady [450]3 years ago

4 0

Answer:

- $25

Step-by-step explanation:

Cynthia made 4 deposits which were $50 each

So that means, after she made those 4 deposits, there were $200 in her account because 50 x 4 = 200

After that, she made 3 withdrawals which were each $75. Her withdrawal amount is $225 because 75 x 3 = 225

The total change in Cynthia's account is 200-225 which is -25. She has a total of -25 dollars in her account

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Find the sum. 8 + -1 + -5 A. 2 B. 14 C. -2 D. 16

Yanka [14]

Answer:

Step-by-step explanation:

-1 0 1 2 3 4 5 6 7 8 9

1. 2. 3. 4 5 6 7 8 therefore its 7

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9

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7 0

3 years ago

Read 2 more answers

Hey please help, thank you!!

marin [14]

Answer:

Step-by-step explanation:

So we have the equation:

$A=\frac{1}{2}(12)(3+7)$

And we want to find out which of the answer choices is not equivalent.

Thus, let's go through each of the choices.

We have:

$\frac{12(3+7)}{2}$

This is correct.

Our original equation can be written as:

$A=\frac{1}{2}(\frac{12(3+7)}{1})$

And if we multiply straight across:

$A=\frac{12(3+7)}{2}$

We'll get choice A. So choice A is correct.

We have:

$6(3+7)$

This is also correct.

From our original equation:

$A=\frac{1}{2}(12)\cdot(3+7)$

If we multiply the first term together:

$A=6(3+7)$

We'll get choice B. So, choice B is correct.

We have:

$0.5(12)(10)$

This is correct as well.

If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:

$A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)$

So, C is also correct.

We have:

$\frac{12}{2}\times\frac{10}{2}$

Note that this is not correct.

This attempted to use the distributive property. However, the distribute property does not work for multiplication. For instance:

$3(2+1)\text{ indeed equals } 3(2)+3(1)$

However:

$3(2\times1)\text{ does not equal} 3(2)\times3(1)$

So, choice D is not equivalent.

So choice D is our answer :)

If we evaluate it, we will get 30, in contrast to the 60 of the others.

5 0

3 years ago

Help me out I can’t figure out how to do this

serious [3.7K]

Check the picture below.

$\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=\frac{1}{4} \end{cases}\implies V=\cfrac{4\pi \left( \frac{1}{4} \right)^3}{3}\implies V=\cfrac{4\pi\frac{1}{64}}{3} \\\\\\ V=\cfrac{\frac{4\pi}{64}}{3}\implies V=\cfrac{\frac{\pi}{16}}{\frac{3}{1}}\implies V=\cfrac{\pi }{16}\cdot \cfrac{1}{3}\implies V=\cfrac{\pi }{48}\implies \stackrel{\textit{rounded up}}{V=0.07}$