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
Simora [160]
3 years ago
5

The sum of 54 and 4 times a number is 21, find the number please helppp

Mathematics
2 answers:
natita [175]3 years ago
4 0
Assume the number to be ‘x’.

54 + 4x = 21

4x = 21 - 54

4x = -33

x = -33/4

x = -8.25
nikdorinn [45]3 years ago
4 0

Answer:

- 8.25

Explanation:

let the unknown number be represented by x.

54 + 4x = 21

(subtract 54 from both sides)

4x = - 33

(divide both sides by 4)

x = <u>- 8.25</u>

i hope this helps! :D

You might be interested in
A card is drawn at random from a standard deck of playing cards (no jokers). If the card is a spade, the player wins $7; if it i
Akimi4 [234]

The expected value of the game is the mean value of the game

The expected value of the game is $1

<h3>How to determine the expected value?</h3>

There are 13 spades in a deck of card of 52

So, the probability of selecting a spade is:

P(Spade) = 13/52

Simplify

P(Spade) = 1/4

Winning = $7

The probability of not selecting a spade is:

P(Not spade) = 1 - 1/4

Simplify

P(Not spade) = 3/4

Lose = $1

The expected value of the game is:

E(x) = \sum x * P(x)

This gives

E(x) = \frac 14 * 7 - 1 * \frac34

Simplify

E(x) = \frac 74 - \frac34

Evaluate

E(x) = 1

Hence, the expected value of the game is $1

Read more about expected values at:

brainly.com/question/15858152

8 0
2 years ago
Gina makes fruit bags. Each bag has 2 apples and 3 oranges.
Bad White [126]

Answer:

2:5

Step-by-step explanation:

5 0
2 years ago
In science class, Priscilla heats water and measures the temperature of the water every 2 minutes\or data are shown in the table
Dima020 [189]

Answer:

  37.5 °C

Step-by-step explanation:

The temperature appears to be increasing linearly at the rate of 5 °C in 2 minutes, or 2.5 °C per minute.

1 minute after 4 minutes, when the temperature is 35 °C, we expect it to be 2.5 °C higher, or 37.5 °C.

8 0
2 years ago
I’m confused on this one
ad-work [718]

The question is "What is the scale of the model to the actual statue"


That means you must put 2/15.


2 being the model


15 being the actual statue


Take that fraction and equal is to 1/x.


Multiply 15 to 1 and 2 to x.


In the end, to solve, you divide 15 by 2x.


The answer is X=7.5


1 : 7.5


7 0
3 years ago
Find the perimeter and area of a rectangle with a width of 2 feet and a length 3 times as long.
rusak2 [61]

Answer:

Length = Width * 3

Width = 2 ft

Length = 2 ft * 3 = 6 ft

Perimeter = (L * 2) + (W * 2)

P = 16 ft

Area = L * W = 12 square feet

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the reciprocal of -1/9 and the opposite of -1 / 9
    7·1 answer
  • Estimate 31,969 divided by 488
    6·2 answers
  • Which one im very stuck
    11·1 answer
  • Find f(–2) for f(x) = 3 • 2x
    13·2 answers
  • What number is 0.1 more than 30.7?
    8·1 answer
  • Is this the right answer....???????
    11·1 answer
  • 7/2x + 1/2x = 10 1/2 + 5/2x
    13·1 answer
  • Select three ratios that are equivalent to 7:3.
    14·2 answers
  • The square root of 24025
    12·1 answer
  • 8.76 11.9 11.73 15.9 in order please help me
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!