Ask question

Ask question

All categories

3 years ago

7

Write and equation and solve it

1 answer:

Vedmedyk [2.9K]3 years ago

6 0

Answer: he have saved $500? ... the question. Does your answer make sense? ... Solve the following problems and show all your work. (Remember to use the 5 steps for solving two-step equation word problems!) | 1. ... Joe went to the hobby shop and bought 2 model sports cars at $8.95 each and some paints.

Step-by-step explanation:

You might be interested in

Wx+yz=bc solve for z

Marina86 [1]

Yz= bc - wx
==> z= (bc -wx) / y

5 0

3 years ago

Read 2 more answers

A submarine descended 3 feet per minute.If the surface of the water is 0, which integer describes the position of the submarine

marin [14]

Answer:

-24

Step-by-step explanation:

-3*8=-24

8 0

3 years ago

A leprechaun places a magic penny under a girls pillow. The next night there are 2 magic pennies under her pillow. The following

kiruha [24]

Answer:

<em>After </em><em>47</em><em> days she will have more than 90 trillion pennies.</em>

Step-by-step explanation:

At the beginning there was 1 penny. At the second day the amount of pennies under the pillow became 2.

The amount of pennies doubled each day. So the series is,

$1,2,4,8,16,32,.....$

This series is in geometric progression.

As the pennies from each of the previous days are not being stored away until more pennies magically appear so the sum of series will be,

$S_n=\dfrac{a(r^n-1)}{r-1}$

where,

a = initial term = 1,

r = common ratio = 2,

As we have find the number of days that would elapse before she has a total of more than 90 trillion, so

$\Rightarrow 90\times 10^{12}\le \dfrac{1(2^n-1)}{2-1}$

$\Rightarrow 90\times 10^{12}\le \dfrac{2^n-1}{1}$

$\Rightarrow 90\times 10^{12}\le 2^n-1$

$\Rightarrow 2^n\ge 90\times 10^{12}+1$

$\Rightarrow \log 2^n\ge \log (90\times 10^{12}+1)$

$\Rightarrow n\times \log 2\ge \log (90\times 10^{12}+1)$

$\Rightarrow n \ge \dfrac{\log (90\times 10^{12}+1)}{\log 2}$

$\Rightarrow n \ge 46.4$

$\Rightarrow n\approx 47$

8 0

3 years ago

Need help math problem give you 5 stars and a good rating if you do this

Mazyrski [523]

Answer:

Add 9.6 then divide by 3.2

8 0

2 years ago

PLEASE HELP I NEED TO GRADUATE!!!!!!Drag each title to the correct location.

Free_Kalibri [48]

Answer:

Yea the guy above me GOT THEM ALL WRONG

Step-by-step explanation:

6 0

3 years ago