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
ivann1987 [24]
3 years ago
5

Adams says that the expression 52-3y is equal to 20 when y = 2 explain adams answer is incorrext

Mathematics
1 answer:
N76 [4]3 years ago
8 0
Adam is incorrect because if you substitute the value of y (which is 2) on the expression 52-3y=20, the statement is false since 46 is obviously not equal to 20.

52-3(2)=20
52-6=20
46 = 20

FALSE
You might be interested in
Can somebody help and show there work I don’t understand this PERIOD. I need help ASAP
iren2701 [21]
In general to be able to add or subtract fractions you need to have the same denominator so that you can add the numerators.

The easiest way to find the same denominator is to identify the lowest common denominator (LCD).

You can find the LCD by finding the prime factors of the denominators in question and multiplying them all together. If the denominators share a prime factor, only multiply it once.

Sometimes you can just eyeball the numbers to find the LCD, which might be faster.

For #W we need to find the LCD of 10 and 6, so prime factorize:

10 = 2 x 5
6 = 2 x 3

LCD = 2 x 5 x 3 = 30

The LCD is 30, so we need to change the fraction to reflect that. Remember, what you do to the denominator you need to do to the numerator as well. So:

-9/10 becomes -27/30 (both multiplied by 3)
-1/6 becomes -5/30 (both multiples by 5)

Now you can easily add:

-27/30 + (-5/30) = -32/30

In summary:
Step #1: find LCD (prime factor or eyeball)
Step #2: multiply the numerator of each fraction by the factor needed to obtain the LCD in that denominator
Step #3: add the fractions now that they have the LCD

Here’s the solution to #G:

-¾ + (-7/12)

Step #1:

4 = 2 x 2
12 = 2 x 2 x 3

LCD = 2 x 2 x 3 (count each unique prime factor once)

Step #2:

-¾ becomes -9/12 (both multiplied by 3)
-7/12 stays the same (it already has the LCD)

Step #3:

-9/12 + (-7/12) = -16/12

Let me know if you have any questions. Try to work though the others!
8 0
2 years ago
Read 2 more answers
a patio door is 72inches side. if a drawing of the door is made with a scale of 2 inches. = 3ft, what is the width of the door o
bixtya [17]
In this problem, the reference of the scale is referring to feet. Firstly, convert 72 inches to feet so that you can properly make the proportion.

72 inches = 6 feet

With the scale of 2 inches per 3 feet, we can set up an easy proportion to see how wide the door will be on the drawing.

3 feet 6 feet
——— = ————
2 inc. ‘x’ inc.

3x=12
X=4 inches

Solving the proportion by cross-multiplication reveals that the scale drawing of the patio door would be 4 inches wide.
8 0
3 years ago
Canned green beans are on sale 5 cans for $3.00. Write an equation to represent how many csns of green beans Mrs.o'conner could
belka [17]

You will have 30 cans for your answer

6 0
2 years ago
Read 2 more answers
If the area of a parallelogram is 5 ⅖ ft. height of the parallelogram is 2 ⅖ ft, what is the base of the parallelogram
lions [1.4K]

Answer:

3 2/5

Step-by-step explanation:

.

7 0
2 years ago
How many feet of chain fence are necessary to enclosed a dog pen that is square and has a area of 64 sq feet
Oliga [24]

Answer:

32 feet

Step-by-step explanation:

area of square is given by side^2

Perimeter of  square is given by 4*side

_______________________________

Given

area of square = 64 sq feet

side^2 = 64

side^2 = 8^2

side = 8

thus side = 8 feet

_______________________________________

The dog pen is fenced with chain, hence chain will be fence at the edge of square and at the perimeter.

Thus, length of chain required will be same as the Perimeter of  square.

Perimeter of given dog pen with side length 8 feet = 4*8 = 32 feet.

Thus, 32 feet of chain fence is required.

6 0
3 years ago
Other questions:
  • What is the value of h?<br> 4<br> 8sqrt3<br> 16<br> 8srt2
    14·2 answers
  • A local coffee shop serves 2/9 as many customers as a shop run by a national coffee chain. The shop run by the chain serves 502
    14·2 answers
  • Evaluate 12 − 6 + (14 − 8)2 = ____________. (1 point)
    8·2 answers
  • A city zoo builds an enclosure for birds in the shape of a cone with the dimensions shown. There are 42 birds contained in the e
    10·2 answers
  • If a cylinder has a volume of 400 m3 and a radius of 4 m, what is its height?
    5·1 answer
  • What is the answer to the q's
    5·1 answer
  • Devin has 39 toy blocks. What is the value of the digit 9 in this number?
    7·2 answers
  • what type of force acts between unlike magnetic poles? a) a force of attraction b) a repelling force c) a gravitational force d)
    15·1 answer
  • What is the answer<br><br> Whoever gets the answer right gets brainliest
    8·1 answer
  • What is the perimeter of the triangle?<br> units
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!