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
jenyasd209 [6]
3 years ago
7

David had $90 to spend at a sporting good store. he bought the sporting equipment. listed below.

Mathematics
1 answer:
ASHA 777 [7]3 years ago
7 0
My estimate is 36$ (you may get a different estimate) and the actual answer is 36.19$ / my estimate is less than the actual solution. (Again your estimate may be different)

Explanation: round all the sporting equipment prices then add them together, minus that from 90$, and that will get you your estimate. Then add all the original sports equipment prices together to get the real total, then subtract from 90$. Then compare and contrast the two totals.
You might be interested in
What is a solution to the equation 1/8=2/5•x
sleet_krkn [62]
The answer is: x=5/16
3 0
3 years ago
Read 2 more answers
Help please asap PLEASE TELL ME THE WORKING AS WELL.​
DanielleElmas [232]

Answer:

a = 9 / 7

step by step explanation:

9 / - a + 15 = 8

Determined the defined range

9 / ( - a ) + 15 = 8 , a ≠ 0

subtract 15 from each side

9 / - a + 15 - 15 = 8 - 15

calculate the difference

9 / - a = - 7

multiply both side of equation by - a

9 / - a × - a = - 7 × - a

9 = 7 a

divide each side by of equation by -7

9 / 7 = 7 a / 7

9 / 7 = a

swap the side of equation . ( optional )

a = 9 / 7

6 0
2 years ago
Read 2 more answers
a major metroplitan newspaper selected a simple random sample of 1,600 readers from their list of 100,000 subscribers. they aske
Arisa [49]

Answer:

The 99% confidence interval for the proportion of readers who would like more coverage of local news is (0.3685, 0.4315).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 1600, \pi = 0.4

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4 - 2.575\sqrt{\frac{0.4*0.6}{1600}} = 0.3685

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4 + 2.575\sqrt{\frac{0.4*0.6}{1600}} = 0.4315

The 99% confidence interval for the proportion of readers who would like more coverage of local news is (0.3685, 0.4315).

7 0
3 years ago
The sum of 4 numbers is 1230. The average of 3 of them is 293. What is the fourth number?
OverLord2011 [107]
351 because 293 multiplied by 3 = 879, and 1230 - 879 = 351
8 0
3 years ago
Read 2 more answers
Draw every line of symmetry for the octagon​
BigorU [14]
You will need to show us a picture if u don’t mind kind sir
5 0
3 years ago
Other questions:
  • The statement tan theta -12/5, csc theta -13/5, and the terminal point determined by theta is in quadrant 2."​
    15·1 answer
  • Last month Leonhard Euler's Watch kiosk at the mall had total sales of $9,489. Merchandise totaling $225 was returned. The goods
    14·1 answer
  • Ann has 12 game cards. She wants to deal each of 5 players the same number of cards. How many cards will each player get? How ma
    13·2 answers
  • Which two sets of angles are corresponding angles ?
    12·1 answer
  • ∆ABC is isosceles, AB = BC, and CH is an altitude. How long is AC, if CH = 84 cm and m∠HBC = m∠BAC +m∠BCH?
    5·1 answer
  • Does the median of a dataset have to be the value of the data set? Explain
    10·2 answers
  • The deli scale weighs meat and cheese in hundredths of a pound. Marco put 5/10pound of pepperoni on the deli scale. What weight
    14·1 answer
  • 10 points - What is the 8th term of the sequence?<br><br> 8, 24, 72, 216...
    6·1 answer
  • Plz need this asap ONLY ANSWER IF YOU KNOW IT will give brainliest
    7·1 answer
  • For each set of three measures, determine if they can be angle measures of a triangle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!