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
Fed [463]
3 years ago
10

At the market, 5 light bulbs cost $9. How much do 7 light bulbs cost?

Mathematics
2 answers:
Rudiy273 years ago
6 0
Hello!

To solve this, find the cost of a single light bulb first, by dividing 9 / 5.

9 / 5 ==> 1.80

One light bulb is $1.80

Now, multiply 1.80 by 7.

1.80 * 7 = 12.6

7 light bulbs cost $12.6

Hope this helps! ☺♥


ivolga24 [154]3 years ago
3 0

Answer:

7 light bulbs cost <u>$12.6</u>

Step-by-step explanation:

You might be interested in
A 50 meter path surrounds a rectangular garden . The width of the garden is two-thirds its length. find its area.
astra-53 [7]
w-width\\l-length\\\\2w+2l=50\to w+l=25\\w=\frac{2}{3}l\\\\substitute:\\\\\frac{2}{3}l+l=25\\\\\frac{5}{3}l=25\ \ \ \ /\cdot\frac{3}{5}\\\\l=15\ (m)\\\\w=\frac{2}{3}\cdot15=10\ (m)\\\\Area:A_{\fbox{ }}=wl\to A_{\fbox{ }}=10\cdot15=150\ (m^2)
7 0
3 years ago
Can you please help me and I will give you Brainliest.​
wel

Answer:

b and e

Step-by-step explanation:

these are the only expressions that if you simplify all the way out you get 12y+24.

7 0
3 years ago
Read 2 more answers
The operation manager at a tire manufacturing company believes that the mean mileage of a tire is 48,564 miles, with a standard
DerKrebs [107]

Answer:

0.0091 = 0.91% probability that the sample mean would be less than 48,101 miles in a sample of 281 tires if the manager is correct

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 can be 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 random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 48564, \sigma = 3293, n = 281, s = \frac{3293}{\sqrt{281}} = 196.44

What is the probability that the sample mean would be less than 48,101 miles in a sample of 281 tires if the manager is correct?

This is the pvalue of Z when X = 48101. So

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

By the Central Limit Theorem

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

Z = \frac{48101 - 48564}{196.44}

Z = -2.36

Z = -2.36 has a pvalue of 0.0091

0.0091 = 0.91% probability that the sample mean would be less than 48,101 miles in a sample of 281 tires if the manager is correct

6 0
2 years ago
I need this answered, hurry
adoni [48]
If I'm correct the answer would be C.) hope this help
8 0
3 years ago
A triangle has a base of 4x-7 and a height of 2x + 3. Find the area.
wolverine [178]

Answer:

area = ‐11

Step-by-step explanation:

hope this is correct and helps

7 0
3 years ago
Other questions:
  • Solve the inequality |x| &lt; 5.
    10·1 answer
  • If ΔGET≅ΔMAP, then what corresponding parts are congruent?
    15·2 answers
  • Use the Distributive Property to multiply. 9(4m + 1) A. 36m + 9 B. 45m C. 36m + 1 D. 13m + 9
    14·1 answer
  • F(x) = 10x - 15. What value of x makes f(x) = 75?
    5·2 answers
  • How many ounces are in 35 grams
    15·1 answer
  • What is the total weight, in pounds, of 100 sharks that each weigh 5.015× 10 (to the 3rd power) pounds
    10·1 answer
  • I need help finding the answer
    13·2 answers
  • The manufacturer of the ColorSmart-5000 television set claims 95 percent of its sets last at least five years without needing a
    15·1 answer
  • Someone help me with the bottom question I will mark brainliest
    12·2 answers
  • 9 years 11 months =<br> _months?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!