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
Ber [7]
2 years ago
5

Tell whether the ratios form a proportion. 1 to 3 and 7 to 21

Mathematics
1 answer:
allochka39001 [22]2 years ago
7 0

Answer:

yes they form a proportion

Step-by-step explanation:

1 to 3 and 7 to 21 are equal

we can check this by multiplying each number in the 1 to 3 ratio by 7 to make it equal with the other ratio, 7 to 21.

(sorry if this is confusing but I hope it helped)

You might be interested in
PLSSS HELPPPPP!!!! Evaluate the expression. -1 - (-6 + 10) = -1 =​
Pie

Answer:

3

Step-by-step explanation:

Given

- 1 - (- 6 + 10 ) ÷ - 1 ← evaluate parenthesis

= - 1 - (4) ÷ - 1

= - 1 - 4 ÷ - 1 ← evaluate division

= - 1 + 4

= 3

6 0
3 years ago
Read 2 more answers
A function is created to represent the costs of living per person in the family. What restrictions would be made to the domain?
Nitella [24]

Let

x-------> the number of persons in the family

f(x)------> the function represent the cost of living

we know that

The domain of the function  would only include positive integers, because the number of persons can not be negative or a fraction

The range of the function would only include positive numbers, because the cost can not be negative

therefore

<u>the answer is the option B</u>

The domain would only include positive integers.

7 0
2 years ago
Read 2 more answers
Could someone help me please it’s a math question !
salantis [7]

Answer:

1/4

Step-by-step explanation:

The answer the other guy told is wrong.

The probability of choosing an orange marble is 2/8 and 2/8 simplified equals 1/4

6 0
2 years ago
Collin wants to solve this system of equations. Which number can he multiply the first equation by so that when the two equation
siniylev [52]
If u multiply the first equation by -4, u get -2x - y = -20

and when u add the 2 equations..
-2x - y = -20
2x + 3/8y = 5
-----------------
0 - 5/8y = -15.....u notice that the x terms r eliminated.

4 0
2 years ago
Read 2 more answers
Use the box-and-whisker plot to find the first quartile.
Vikki [24]
6 is your answer.

With box and whisker plot, the first quartile is where the box starts. In this case it’s 6. The median of this set is 8, represented by the line inside the box. The third quartile is where the box ends, 11 in this case.

The whiskers show the lowest and highest numbers of the data set.

Hope this helped. LMK if you have questions.
7 0
2 years ago
Other questions:
  • Factor c2 +6C + 8 = 0
    5·1 answer
  • HELP PLZ??
    10·2 answers
  • X=|y| what is the domain and range ?
    5·1 answer
  • Equation for dividing example 25 divided by 5
    13·1 answer
  • A. -4 &lt;= x &lt;= 0 b. y &gt;= -3 c. all real numbers 4. {-4,0}
    8·1 answer
  • You give siri 0 cookies and siri gives you a cookie back how many cookies did you give siri ?
    7·2 answers
  • Disregard anything that is already answered I was guessing. I really need help.
    6·1 answer
  • Find the value of x and AB if is a segment bisector of .
    12·2 answers
  • Camilla makes 2 of her 5 shots attempted.Is the percent of shots she made more than,less than or the same as Emily's percent of
    7·1 answer
  • 4. Find a pair of irrational numbers whose product is an integer.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!