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
alexgriva [62]
3 years ago
7

Marco wants to buy a new smartphone that costs $495 , with some additional accessories He has already saved 75 $ write and solve

an inequality to find the least amount of money ,m, that Marco still needs to save before he can buy the smartphone and accessories
Mathematics
2 answers:
Lina20 [59]3 years ago
4 0

Answer:

He needs to save $420

Step-by-step explanation:

495 - 75 = 420

Likurg_2 [28]3 years ago
3 0

Answer: He has to save at least $420 .

Step-by-step explanation:

Hi, to answer this question we have to write an inequality using the information given:

The amount he has already saved (75) plus the money he still needs to save (x) must be higher or equal to the cost of the Smartphone and accessories.

75 +x ≥ 495

Solving for x:

x ≥ 495-75

x ≥ 420

He has to save at least $420.

You might be interested in
Brittany has lunch at a restaurant. Her bill was $14.50,
STALIN [3.7K]

Answer:

I don't know, I'm just doing this to get points. lol

Step-by-step explanation:

8 0
3 years ago
Making handcrafted pottery generally takes two major steps: wheel throwing and firing. The time of wheel throwing and the time o
9966 [12]

Answer:

a) 8.23% probability that a piece of pottery will be finished within 95 minutes

b) 0.28% probability that it will take longer than 110 minutes.

Step-by-step explanation:

Normal distribution:

When the distribution is normal, we use 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.

Two variables:

Means \mu_{a}, \mu_{b}

Standard deviations \sigma_{a}, \sigma_{b}

Sum:

\mu = \mu_{a} + \mu_{b}

\sigma = \sqrt{\sigma_{a}^{2} + \sigma_{b}^{2}}

In this question:

\mu_{a} = 40, \mu_{b} = 60, \sigma_{a} = 2, \sigma_{b} = 3

So

\mu = \mu_{a} + \mu_{b} = 40 + 60 = 100

\sigma = \sqrt{\sigma_{a}^{2} + \sigma_{b}^{2}} = \sqrt{4 + 9} = 3.61

A) What is the probability that a piece of pottery will befinished within 95 minutes?

This is the pvalue of Z when X = 95.

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

Z = \frac{95 - 100}{3.61}

Z = -1.39

Z = -1.39 has a pvalue of 0.0823

8.23% probability that a piece of pottery will befinished within 95 minutes.

B) What is the probability that it will take longer than 110 minutes?

This is 1 subtracted by the pvalue of Z when X = 110.

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

Z = \frac{110 - 100}{3.61}

Z = 2.77

Z = 2.77 has a pvalue of 0.9972

1 - 0.9972 = 0.0028

0.28% probability that it will take longer than 110 minutes.

5 0
3 years ago
⚠️HELP ME!!!⚠️<br> ITS URGENT (NO FUNNY ANSWERS)
Damm [24]

Answer:

They will buy 4 hotdogs and 3 drinks

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A basketball player has already scored 56 points in a game. The team record for points in a game is 72. Which equation would all
maks197457 [2]

A because if you subtract 56 from both sides, then x would show you what equals the tied record

8 0
3 years ago
Please help its due in tommorow btw You get brainliest
BlackZzzverrR [31]
So if the total is $8.75, and 1 torch costs $7.66, and you bought 1 torch and two batteries, you would have to subtract 8.75 - 7.66 which is 1.09, and then divide that in half to get the price per battery.
Final answer = 1 Battery = $0.54
5 0
3 years ago
Other questions:
  • Anyone know the answer to this ?
    6·1 answer
  • Given ????(a1, aa2), ????(????1, ????2), ????(c1, c2), and ????(d1, d2), find a general formula in terms of a1, a2, ????1, ????2
    14·1 answer
  • Question deals with vectors.
    10·1 answer
  • Is {(1, 2), (7, 6), (3, 2), (1, 0), (5, 6)} a relation? why?
    7·1 answer
  • Let f = {(-2,4), (-1,2), (0,0), (1,-2), (2,-5)}
    14·1 answer
  • Rx1=r is what kind of property
    13·1 answer
  • 14. Mike is riding his bike at 15 miles per
    13·1 answer
  • Pls help and explain
    8·1 answer
  • Brian and Emily are testing different paper airplane designs to see which will allow a plane to go the farthest. Emily folds her
    11·1 answer
  • The question is on the screenshot
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!