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
hram777 [196]
3 years ago
7

Your cousin gave you $0.72 with which to buy a gift. This covered 9/10 of the cost. How much did the present cost?

Mathematics
1 answer:
Helga [31]3 years ago
5 0

Answer:

$0.80

Step-by-step explanation:

percent times the original number equals the part

(%)(start or total cost)= (part of the total cost). you need to know the total cost, so you would fill in the part and the percent. 0.9x=0.72. you use x because you don't know what the total cost is. then you divide both sides by 0.9 to get x by itself and you get that x = 0.8, meaning that the present costs $0.80.

You might be interested in
ASAP ILL GIVE BRAINLIEST IF UR RIGHT!!! The radius of the cone is 5 in and y = 13 in. What is the volume of the cone in terms of
Blababa [14]

Answer: V = 100\pi in^{3} (third option)

Given Information:

  • V = \frac{1}{3}\pi r^{2} h <-- volume formula.
  • r = 5
  • y = 13
  • <em>h = ?</em>

To find h...

  • h, r, and y make a right triangle.
  • h and r are the two legs, y is the hyptenuse.
  • h^{2} + r^{2} = y^{2}
  • h^{2} + 5^{2} = 13^{2}
  • h^{2} + 25 = 169
  • h^{2} = 144
  • h = 12

Use formula:

  • V = \frac{1}{3}\pi r^{2} h
  • V = \frac{1}{3} \pi (5)^{2} (12)
  • V = \frac{1}{3} \pi (25)(12)
  • V = \frac{1}{3} \pi (300)
  • V = 100\pi
7 0
3 years ago
Read 2 more answers
Which expression is a difference of a number and a product
adoni [48]

Answer:

10-8x

Step-by-step explanation:

because it is 10 minus 8x

but 8x is 8 times x

plz brainliest :)

7 0
3 years ago
Read 2 more answers
A distribution has a mean of 90 and a standard deviation of 15. Samples of size 25 are drawn randomly from the population. Find
raketka [301]

Answer:

The probability is 0.04746

Step-by-step explanation:

Firstly, we calculate the z-score here

Mathematically;

z-score = x-mean/SD/√n

Where from the question;

x = 85, mean = 90 , SD = 15 and n = 25

Plugging these values into the equation, we have;

Z = (85-90)/15/√25 = -5/15/5 = -1.67

So the probability we want to calculate is ;

P(z > -1.67)

We use the standard normal distribution table for this;

P(z > -1.67) = 0.04746

4 0
3 years ago
Please help, thanks!<br><br> Factor completely<br><br> Sx²- 13x² + 15x²
Andru [333]

Answer:

x^2(S+2)

Step-by-step explanation:

7 0
3 years ago
Which choice correctly shows rounding to the hundredths place?
Slav-nsk [51]

Answer:

where are the choices

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which function represents the given graph?
    7·2 answers
  • What percent of 250 is 75?
    11·1 answer
  • Braden bought 18 pencils for $4.50.
    14·2 answers
  • Question 2
    12·2 answers
  • What is the relationship between the lines with the following equations? ​
    11·1 answer
  • During the first round of a game, Silas
    12·2 answers
  • Jackie has already baked 17 pies, and she can bake 1 pie with each additional cup of sugar she buys.
    13·1 answer
  • Please help me with this! Thank you
    15·1 answer
  • 1/5 k = 20 solvve for k
    5·2 answers
  • There were 215 students who attended the school play. If there are a total of 250 students in the school, what percent of the st
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!