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
viktelen [127]
3 years ago
15

125% of what number is 80? Oa 36 Oь 40 Os 64 Od 72

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
7 0

Answer:

d. 72

Step-by-step explanation:

GaryK [48]3 years ago
5 0

Answer :D

64

Step-by-step explanation:

We have, 125% x x = 80

or \frac{125}{100} x x = 80

Multiplying both sides by 100 and dividing both sides by 125,

we have x = 80 x \frac{100}{125}

x = 64

(or just divide 80 x 100 ÷ 125)

Hope this helps - Answered by Lilo

You might be interested in
4w+24 is less than or equal to 100
ladessa [460]

Answer:

4w+24≤100

Step-by-step explanation:

We can just make the inequality based on the question.

6 0
3 years ago
How many different ordered pairs satisfy both x^{2} + y^{2} = 100 and x^{2} + 2y^{2} = 108?
Dominik [7]
\begin{cases}x^2+y^2=100\\x^2+2y^2=108\end{cases}\\\\\\
\begin{cases}x^2+y^2=100\\x^2+y^2+y^2=108\end{cases}\\\\\\100+y^2=108\\\\y^2=108-100\\\\y^2=8\qquad|\sqrt{(\ldots)}\\\\y=-\sqrt{8}\qquad\vee\qquad y=\sqrt{8}\\\\\boxed{y=-2\sqrt{2}\qquad\vee\qquad y=2\sqrt{2}}

We know that y^2=8 so:

x^2+y^2=100\\\\x^2+8=100\\\\x^2=100-8\\\\x^2=92\qquad|\sqrt{(\ldots)}\\\\
x=-\sqrt{92}\qquad\vee\qquad x=\sqrt{92}\\\\x=-\sqrt{4\cdot23}\qquad\vee\qquad x=\sqrt{4\cdot23}\\\\\boxed{x=-2\sqrt{23}\qquad\vee\qquad x=2\sqrt{23}}

As we see there are 4 such pairs:

x=-2\sqrt{23}\qquad y=-2\sqrt{2}\\\\x=2\sqrt{23}\qquad y=-2\sqrt{2}\\\\
x=-2\sqrt{23}\qquad y=2\sqrt{2}\\\\x=2\sqrt{23}\qquad y=2\sqrt{2}


5 0
3 years ago
The stadium is like a hemisphere with a radius of 150 feet last month the owners of the stadium paid 0. 05 per cubic foot to cov
GREYUIT [131]

The total cost for utilities last month is 353,571.43.

<h3>What is the total cost for utilities last month?</h3>

The total cost for utilities last month can be determined by multiplying the volume of the stadium by the cost per cubic foot.

The volume of the stadium can be determined by using the formula for the volume of a hemisphere.

Volume of a hemisphere = Volume of a hemisphere = (2/3) x (n) x (r^3)

n = 22/7

r = radius

2/3 x 22/7 x 150³ = 7071,428.57

The total cost for utilities last month =  7071,428.57 x 0.05 = 353,571.43

To learn more about volume, please check: brainly.com/question/13705125

6 0
2 years ago
Use the scale factor 1:15 to find the missing dimension.
mestny [16]

Answer:

20 cm

Step-by-step explanation:

3 m*\frac{1}{15} *\frac{100 cm}{1 m}

1. Multiply the actual depth my the scale factor of 1/15.

2. Multiply the resulting depth after multiply by the scale factor by the conversion factor of meters to centimeters.

6 0
3 years ago
Explanation please I need to know how you got the answer thank you!
Blababa [14]

Answer:

19.6, B

Step-by-step explanation:

To solve, we need to figure out how many gallons of white paint she needs for every gallon of brown paint.

We are given this equation.

5 gallons of brown paint = 7 gallons of white paint

Divide both sides by 5.

1 gallon of brown paint = 7/5 gallons of white paint = 1.4 gallons of white paint

Now, using this, substitute 14 into the left side.

14 gallons of brown paint = 1.4 * 14 gallons of white paint

14 gallons of brown paint = 19.6 gallons of white paint

Thus, the answer is B, 19.6 gallons

8 0
3 years ago
Other questions:
  • Tiffany sketched a picture of a car she used the scale 2 inches : 12 feet the car in her sketch is 8 inches long what is the len
    14·1 answer
  • Let x be 3 and y be 4 and z is 5 <br> x + y / xz
    14·2 answers
  • Plz help me out ASAP
    13·1 answer
  • Help will fine brainliest!!!
    13·2 answers
  • Francisco has a savings account balance of $2,033.88. The interest rate on the account is 2.9% compounded monthly. If he opened
    10·1 answer
  • Help almost done....​
    11·1 answer
  • 12x^9y^4/6x^3y^2<br><br> A. 2x^3y^2 <br> B. 2/x^6y^2<br> C. 2/x^3y^2<br> D. 2x^6y^2
    7·2 answers
  • Find the circumcenter of a triangle with the vertices O(0,0), Y(0,12), Z(6,6)
    15·1 answer
  • An ice company sells 7 bags of ice for 21$ how much would it cost PER bag of ice
    11·2 answers
  • The number of cookies in Orlando's jar, 20, is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!