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
OLEGan [10]
3 years ago
11

Twice the difference of a number and 1 is 4 more than that number. find a number using polyas 4 steps

Mathematics
1 answer:
professor190 [17]3 years ago
8 0

Answer:

x=3

Step-by-step explanation:

2(x-1)=4

2x-2=4

2x=4+2

2x=6

x=6/2=3

You might be interested in
3. Vocabulary Suppose △MNP ∼△RST. How can you identify corresponding parts?
MakcuM [25]

Similar triangles may or may not have congruent sides, but the ratio of the corresponding sides will always be congruent.

<u>(3) Corresponding sides of △MNP and △RST</u>

Given that △MNP ∼△RST.

This means that, the corresponding sides are:

  • MN and RS
  • MP and RT
  • NP and ST

<u>(4) The equal measures</u>

Given that △ABC ∼△TUV

This means that, the corresponding angles are equal, but corresponding sides are not.

So, the equal measures are:

  • (a). the measures of ∠A and ∠T
  • (c). the ratios of the sides BC/UV and AC/TV

The unequal measure is:

  • (b). the perimeters of the two triangles

<u>(c) Scale mapping</u>

The scale mapping is given as:

Ratio = 1\ in : 100\ mi

The above scale means that 1 inches on the scale represents 100 miles of the actual distance.

Take for instance, 5 inches would represent 500 miles.

500 is 5 times 100

Hence, the actual distance between two towns 100 times the map distance between the two towns

Read more about similar triangles at:

brainly.com/question/14285697

3 0
3 years ago
I need help in an hour or less pls The number N of bacteria in a refrigerated food is given by N(T ) = 20T 2 – 80T + 500, 2 ≤ T
weqwewe [10]

Answer:

The number N of bacteria in a refrigerated food is given by N(T) = 10T^2 - 20T + 600, 2 ≤ T ≤ 20 where T is the temperature of the food in degrees Celsius. When the food is removed from refrigeration, the temperature of the food is given by T(t) = 3t + 2, 0 ≤ t ≤ 6 where t is the time in hours.

Step-by-step explanation:

7 0
3 years ago
A farmer saw some chickens and pigs in a field. he counted 30 heads and 84 legs. determine exactly how many chickens and pigs he
loris [4]
12 pigs×4 legs=48 legs
18 chickens×2 legs=36 legs
48 legs+36 legs=84 legs

12 are pigs and 18 are chickens
8 0
3 years ago
Y=2/5x+2 how do you graph it on a graph
ANTONII [103]
That is how you graph y=2/5x+2 since 2/5 is the slope and 2 is the y intercept.

8 0
3 years ago
Lily took out a 5-year loan from the bank for $31,000 to purchase a new car. At the end of the loan, she had paid a total of $37
otez555 [7]

Answer:

=24.5%

Step-by-step explanation:

  1. Simple interest = (principal×rate×time)÷100. *brackets first*
  2. transpose the formula to make rate the subject: rate= (100×simple interest) ÷ (principal×time)
  3. plug in values: rate = (100×37975) ÷ (31000×5)
  4. the result is 24.5%
8 0
3 years ago
Other questions:
  • A random sample of 300 CitiBank VISA cardholder accounts indicated a sample mean debt of 1,220 with a sample standard deviation
    12·1 answer
  • Barbara bought items for $7.50, $8.25, and $6.15. She gave the clerk $30.00. How much was her change?
    10·1 answer
  • Which statement best describes how the volume of a square-based pyramid is related to the volume of a cube?
    9·1 answer
  • The value of -7 + 24 ÷ (-3)(2) is _____.<br><br> -23<br> 23<br> -11<br> 11
    9·2 answers
  • On page number 3 Q1 AND Q2 I NEED THE ANSWER PLS HELP ME OUT<br>LOOK IN THE PDF AND GO TO PAGE 3
    7·1 answer
  • There are 30 balls in a bag. 6 are red, 14 are blue, 3 are green and the remainder are yellow.
    5·1 answer
  • Solve for x.<br> i need help
    9·1 answer
  • Which graph represents exponential decay?
    9·2 answers
  • Can you answer this math homework? Please!
    9·1 answer
  • John is going to the store. His house is located 3 miles south and 4 miles east from the store, as shown below. What is the shor
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!