Ask question

Ask question

All categories

3 years ago

8

Uma wants to buy a video game system for $400. She has $50 and is saving $25 each week. Solve the equation 25w + 50 = 400 to fin

d how many weeks w it will take Uma to save enough to buy the system.

2 answers:

Sonja [21]3 years ago

8 0

Move all terms that don't contain <span>ww</span> to the right side and solve.<span>
w=<span>14

Hope this helps,

kwrob

</span></span>

Agata [3.3K]3 years ago

5 0

First take away fifty from both sides
25w = 350
Divide 25 from both sides
Answer is: w = 14

So, it will take Uma 14 weeks to save enough money to but the video game system.

Hope that helps!!!

You might be interested in

An Airliner has a capacity for 300 passengers. If the company overbook a flight with 320 passengers, What is the probability tha

TEA [102]

Answer:

The probability is $P(X >300 ) = 0.97219$

Step-by-step explanation:

From the question we are told that

The capacity of an Airliner is k = 300 passengers

The sample size n = 320 passengers

The probability the a randomly selected passenger shows up on to the airport

$p = 0.96$

Generally the mean is mathematically represented as

$\mu = n* p$

=> $\mu = 320 * 0.96$

=> $\mu = 307.2$

Generally the standard deviation is

$\sigma = \sqrt{n * p * (1 -p ) }$

=> $\sigma = \sqrt{320 * 0.96 * (1 -0.96 ) }$

=> $\sigma =3.50$

Applying Normal approximation of binomial distribution

Generally the probability that there will not be enough seats to accommodate all passengers is mathematically represented as

$P(X > k ) = P( \frac{ X -\mu }{\sigma } > \frac{k - \mu}{\sigma } )$

Here $\frac{ X -\mu }{\sigma } =Z (The \ standardized \ value \ of \ X )$

=> $P(X >300 ) = P(Z > \frac{300 - 307.2}{3.50} )$

Now applying continuity correction we have

$P(X >300 ) = P(Z > \frac{[300+0.5] - 307.2}{3.50} )$

=> $P(X >300 ) = P(Z > \frac{[300.5] - 307.2}{3.50} )$

=> $P(X >300 ) = P(Z > -1.914 )$

From the z-table

$P(Z > -1.914 ) = 0.97219$

So

$P(X >300 ) = 0.97219$

8 0

3 years ago

Marissa bought 2 and a half gallons of orange juice to make punch how many quarts of orange juice did. Marissa buy

Nookie1986 [14]

The answer is as follows:
There are 2 pints in a quart.
There are 2 quarts in a half gallon.
There are 2 half gallons in a gallon.
Therefore, we can conclude that there are 10 quarts of orange juice.

7 0

3 years ago

Hey guys so I have a math question which is how can you buy 100 items for exactly $1.00. A pencil is 10 cents each an eraser is

iren2701 [21]

Answer:

2 paperclips for 1 cent

Step-by-step explanation:

3 0

3 years ago

How does knowing 1 Kg is 1,000 g and 1 g is 1000 mg help you convert 1 Kg to mg

romanna [79]

Answer:

Solution given:

1 kg =1000g

1g=1000mg

now

1kg=1000g=1000×1000mg=1000000mg

6 0

3 years ago

2 25 divided by 11 10 in fraction

koban [17]

Answer:

$\frac{4}{55}$

Step-by-step explanation:

$\frac{2}{25} \div \frac{11}{10}$

$\frac{2}{25} \times \frac{10}{11}$

$\frac{2}{5} \times \frac{2}{11} = \frac{2 \times 2}{5 \times 11}$

$\frac{4}{5 \times 11}$

$= \frac{4}{55}$

4 0

3 years ago

Read 2 more answers