All categories

3 years ago

Jacinta is planning a party for quite a few people. She needs tortilla chips and salsa. At the store tortilla chips

Mathematics

1 answer:

kaheart [24]3 years ago

5 0

Answer:

Jacinta bought 3 jars of salsa

Step-by-step explanation:

3.99 bags of tortilla chips ×4 =15.96 spent on chips

24.18-15.96= 8.22

8.22÷2.74=3 jars of salsa

You might be interested in

carol and jada sold raffle tickets to raise money for a new playground carol sold 2045 tickets jada sold 356 more than carol how

GenaCL600 [577]

Jada sold 2401 tickets

4 0

3 years ago

What are the values of x in the equation 4x2 4x – 3 = 0? x = –1.5, 0.5 x = –0.5, –1.5 x = x =?

Stolb23 [73]

Answer:

The values of x are

$x=-1.5\ , 0.5$

Step-by-step explanation:

we have

$4x^{2}+4x-3=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$4x^{2}+4x=3$

Factor the leading coefficient

$4(x^{2}+x)=3$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$4(x^{2}+x+.25)=3+1$

$4(x^{2}+x+.25)=4$

$(x^{2}+x+.25)=1$

Rewrite as perfect squares

$(x+0.5)^{2}=1$

Square root both sides

$x+0.5=(+/-)1$

$x=-0.5(+/-)1$

$x=-0.5+1=0.5$

$x=-0.5-1=-1.5$

3 0

4 years ago

Read 2 more answers

Is 0.4 less than 0.12?

devlian [24]

No, .4 is larger then .12

4 0

4 years ago

Read 2 more answers

How are Babies made?

SVEN [57.7K]

Answer: they are spawns of satan they apear out of no where

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

while only 5% of babies have learned to walk by the age of 10 months, 75% are walking by 13 months. if the age at which babies d

7nadin3 [17]

Answer:

$mu=12.1299$

$\sigma=1.2987$

Step-by-step explanation:

In the normal distribution curve, we will have 5% below 10 months [horizontal axis] and 75% below 13 months [horizontal axis].

We need to find z-score using z-table [normal table] that corresponds to

5% = 0.05

and

75% = 0.75

Zscore formula:

$z=\frac{x-\mu}{\sigma}$

Where mu is mean and sigma is standard deviation [these are the 2 parameters we are seeking]

So, 0.05 corresponds to z = -1.64, and

0.75 corresponds to z = 0.67

Now we put both of these into z-score formula and solve both equations for mu and sigma.

$-1.64=\frac{10-\mu}{\sigma}$

and

$0.67=\frac{13-\mu}{\sigma}$

The first equation becomes:

$-1.64=\frac{10-\mu}{\sigma}\\-1.64\sigma+\mu=10\\mu=10+1.64\sigma\\$

Now, simplifying 2nd equation and putting this in:

$0.67=\frac{13-\mu}{\sigma}\\0.67\sigma=13-(10+1.64\sigma)\\0.67\sigma=13-10-1.64\sigma\\2.31\sigma=3\\\sigma=1.2987$

Now finding mu:

$\mu=10+1.64(1.2987)\\\mu=12.1299$

These two MU(mean) and SIGMA(standard deviation) are the 2 parameters.

4 0

3 years ago