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
ratelena [41]
2 years ago
13

Pleas I really need help I will make most Brainly

Mathematics
1 answer:
lidiya [134]2 years ago
4 0

Answer:

30%

Step-by-step explanation:

12/40 = 0.3

0.3 * 100 = 30%

So, 30% of students picked pizza.

You might be interested in
An exponential function f(x)
natka813 [3]

Given:

An exponential function f(x)=ab^x passes through the points (0, 12000) and (2, 3000).

To find:

The values of a and b.

Solution:

We have,

f(x)=ab^x      ...(i)

It passes through the point (0,12000). Putting x=0 and f(x)=12000 in (i), we get

12000=ab^0

12000=a(1)

12000=a

Given function passes through the point (2,3000). Putting x=2, a=12000 and f(x)=3000 in (i), we get

3000=12000b^2

\dfrac{3000}{12000}=b^2

\dfrac{1}{4}=b^2

Taking square root on both sides.

\pm \dfrac{1}{2}=b

For an exponential function b cannot be negative. So, b=\dfrac{1}{2}.

Therefore, the value of a is 12000 and the value of b is \dfrac{1}{2}.

3 0
3 years ago
Use order of operations to simplify 8 + 7(4^2-3)
notsponge [240]
So the first thing you want to do is solve what's in the parentheses (4^2-3) before you subtract, you get rid of the exponent by doing 4 times 4 (also known as 4^2) to get 16. you then subtract 3 from 16 getting 13. you then multiply7 by 13 to get 91, where you add the 8 to get 99 which would be the final answer
3 0
4 years ago
​Vanessa has 40 gallons of water to her new fish pond in her backyard and wants to add more water. Her pond can hold a maximum o
hram777 [196]

Answer:

A) 24*m + 40 ≤ 256

B) She could leave the house running for at most 9 minutes

Step-by-step explanation:

The missing questions are:

<em>Part A. Create an inequality to represent the number of minutes, m, Vanessa could run the garden hose to add more water to the pond without adding the maximum amount in case of rain. </em>

<em> Part B. Select all the amounts of time, in minutes, that Vanessa could leave the house running.</em>

A) 48 gallons of water in 2 minutes is the same as 24 gallons per minute. Considering that her pond can hold a maximum of 256 gallons, it already has 40 gallons, and that the flow rate is 24 gallons per minute, the inequality is:

24*m + 40 ≤ 256

B)  Solving the previous equation:

24*m ≤ 256 - 40

m ≤ 216/24

m ≤ 9

8 0
4 years ago
Read 2 more answers
A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions ans
solmaris [256]
Hello!

To solve this we have to find what 82% of 50 is

So we do 50 * 0.82 where 0.82 is 82% as a decimal.

This gives us 41

So the answer is D

Hope this helps!
8 0
3 years ago
Read 2 more answers
A rule for how to find a ratio with a denominator of 1 without using a diagram
kirill115 [55]
If you start with a ratio in the form p/q and want a ratio with a denominator of 1, simply divided p by q. 
So suppose you are given the ratio 35/10 (so that p = 35, q = 10).
Then divide 35 by 10 which gives 3.5.
<span>So the units ratio is 3.5:1 or (7/2):1</span>
6 0
3 years ago
Other questions:
  • Rectangle and geometry
    5·1 answer
  • Quick question plz help ASAP!
    5·1 answer
  • A 4-foot-long sandwich is cut into servings that are each 1/3 foot long. How many servings will there be after each sandwich is
    10·2 answers
  • SOLVE THIS! 4v+20-6=36
    12·2 answers
  • The first four terms of a convergent geometric progression (GP) 500, 200, 80, 32. The sum to infinity of this GP
    6·1 answer
  • URGENT!! EASY IM DUMB MY LAST QUESTION WILL FOREVER BE GRATEFUL PLS HELP WILL GIVE BRANLIEST!! AT LEAST TAKE A LOOK!!!! PLS I AM
    12·1 answer
  • If Salvador checks his pulse for 8 minutes, what is his rate if he counts 904 beats?
    7·2 answers
  • What is an algebraic expression for ​"41 more than y ​"?
    13·1 answer
  • HELP PLEASE !!!
    6·2 answers
  • Megan works at Amazon’s warehouse. She is responsible for packing boxes into trucks for shipment. Each truck can hold 22 boxes,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!