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
puteri [66]
3 years ago
7

Xiao's teacher asked him to rewrite the sum 60+90 as the product of the GCF of the two numbers and a sum. Xiao's wrote 3(20 + 30

). What mistake did Xiao make? How should he have written the sum?
Mathematics
1 answer:
Kobotan [32]3 years ago
8 0
His answer works ... it gives 150, which is the same as (60 + 90) ... but he didn't deliver exactly what the problem asked for.

It asked for the <u>GCF</u> to be outside the parentheses, and he put  '3'  there.

'3'  is certainly one common factor of 60 and 90, but it's far from being the
greatest one. 

The GCF  of 60 and 90 is actually  30 .  So the absolutely positively technically correct response to the instructions in the problem would be  30(2 + 3).
You might be interested in
Why do women get paid less than men do
photoshop1234 [79]
Cause people believe men work harder and they don’t think women have the rights to get as much money
8 0
3 years ago
Read 2 more answers
Alejandro has gone to school StartFraction 5 Over 7 EndFraction of the last 35 days. Which expression can be used to determine t
Katarina [22]

Answer:

35 times StartFraction 5 Over 7 EndFraction

Step-by-step explanation:

Alejandro has gone to school (5/7) of the last 35 days.

We need to find the expression that can be used to determine the number of days Alejandro has gone to school.

x=\dfrac{5}{7}\times 35\\\\=5\times 5\\\\=25

So, the correct option is (b) "35 times StartFraction 5 Over 7 EndFraction".

6 0
3 years ago
What are the first four terms in the sequence Tn=4n+9?
marysya [2.9K]

Answer: If the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n)/2 = n [2a 1 + (n - 1)d]/2

6 0
2 years ago
2/8 and 5/8 in simplest form
8090 [49]

Answer:

2/8 is simplest form is 1/4 and 5/8 in simplest form is just 5/8

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-te
andreyandreev [35.5K]

Answer:

i use the two sided t-test.

Step-by-step explanation:

it would be nearly impossible to ascertain with certain the proposition above but we would rather guess using the parameters that were available at the time.

generally in statistics, we use a two sided t-test when an area of a distribution is two-sided and tests whether a particular given sample in question  is greater than or less than a exact range of values.

the two sided t-test  is mostly used in null-hypothesis testing and testing for statistical significance.

4 0
3 years ago
Other questions:
  • Find the difference. (16^3 + 2^2) - 4^3 =
    12·1 answer
  • A baseball team played 161 regular season games. The ratio of the number of games they won to the number of games they lost was
    6·2 answers
  • The weight of 8 science books is 28 pounds. What is the weight of 11 science books?
    15·2 answers
  • Carl is on the school track team. To prepare for an upcoming race, he plans to run 207 miles total over the next 31 days. Write
    12·1 answer
  • Gregory teaches martial arts. He charges a one-time processing fee of $5.00 and the cost of the classes is $12. Let x represent
    7·1 answer
  • What is the distributive property to express 16 48?
    7·1 answer
  • What is the GCF of two prime Numbers ??Give Me A Example?
    7·1 answer
  • What are the coordinates of D' when quadrilateral ABCD is reflected over the y-axis?
    15·1 answer
  • Josh takes a load of dress shirts to the dry cleansers the amount he pays for dry cleaning (f) is given by the equation f=3-2s w
    9·1 answer
  • What’s the triangle similarity theorem?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!