1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valkas [14]
3 years ago
8

Matt and his siblings bought their mom her favorite perfume for her birthday. They gave the cashier $80. The cashier gave them b

ack 1 ten-dollar bill, 1 five-dollar bill, 8 dimes, and 1 nickel as change. How much did the perfume cost?
Mathematics
1 answer:
seropon [69]3 years ago
8 0

Answer:

$64.15

Step-by-step explanation:

to solve this problem, first we should figure out how much money that the cashier gave them back, and then subtract that from $80 (which was what Matt and his siblings gave the cashier) to find out how much the perfume cost.

it is given that:

they gave the cashier $80.

the cashier gave them back 1 ten-dollar bill ($10), 1 five-dollar bill ($5), 8 dimes ($0.80 or 80 cents) , and 1 nickel ($0.05 or 5 cents)

$10+$5+$0.80+$0.05=$15.85

the total amount of money that the cashier gave them back is $15.85

to find how much the perfume cost:

$80-$15.85=$64.15

so, the perfume cost $64.15

You might be interested in
Angel borrowed $141 to buy a stereo. He pays backs $14 each week. How much does he still owes after each week? Use a graph if yo
Harrizon [31]

Logically, he would owe 14 less each week

Let x = # of weeks passed

Algebraic Expression: 141 - 14x =

Week 1: 141 - 14 = 127

Week 2: 141 - 14(2) = 113

Week 3: 141 - 14(3) = 99

etc.....

Hope this helps


3 0
3 years ago
Simplify the following expression. x^-2/3* x^6/7
laiz [17]

Answer:

x^4/21

Step-by-step explanation:

8 0
3 years ago
Why do ⅚, 15,18, and 10/12 equal each other?
Burka [1]
10/12 is an un simplified form of 5/6.
8 0
3 years ago
How do you solve the equation 8-5w= -37
Nikitich [7]
8-5w= -37
-8       -8
-5w =- 37 -8
-5w =-45
w= 9
5 0
3 years ago
Read 2 more answers
Suppose that the distribution for total amounts spent by students vacationing for a week in Florida is normally distributed with
Charra [1.4K]

Answer:

96.24% probability that a SRS of 25 students will spend an average of between 600 and 700 dollars

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

\mu = 650, \sigma = 120, n = 25, s = \frac{120}{\sqrt{25}} = 24

What is the probability that a SRS of 25 students will spend an average of between 600 and 700 dollars

This is the pvalue of Z when X = 700 subtracted by the pvalue of Z when X = 600. So

X = 700

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{700 - 650}{24}

Z = 2.08

Z = 2.08 has a pvalue of 0.9812

X = 600

Z = \frac{X - \mu}{s}

Z = \frac{600 - 650}{24}

Z = -2.08

Z = -2.08 has a pvalue of 0.0188

0.9812 - 0.0188 = 0.9624

96.24% probability that a SRS of 25 students will spend an average of between 600 and 700 dollars

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write the numbers in order from greatest to least.<br> -4, 2 1⁄5, -2 3⁄4, 1⁄10
    11·2 answers
  • Which least to greatest 125% 6/5 1.22
    12·1 answer
  • What’s a equivalent ratio
    15·2 answers
  • A store sells 3 categories of kitchen items: cups, bowls, and spoons. There are 5 types of cups, 4 types of bowls, and 2 types o
    15·1 answer
  • Look at the number line below.
    12·1 answer
  • What is 7/11 equivalent to
    9·1 answer
  • A total of 525 records of a hospital were reviewed and 175 of the patients had a heart problem, 150 a respiratory problem, 125 s
    6·1 answer
  • Ms. Gadget car broke down on the turnpike. Acme town Ig charged $30 plus $3 per mile to tow the car. If ms. Gadget paid $162, ho
    15·1 answer
  • A box is to be constructed with a rectangular base and a height of h cm. the length, l, of the box is 10 cm, and the width, w, i
    5·1 answer
  • Yaritza purchased 9 pints of ice cream for a party. If each guest will be served
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!