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
Rasek [7]
3 years ago
8

Find the missin number :7 =12:21

Mathematics
2 answers:
Sonbull [250]3 years ago
6 0
7 times 3 equals 21 

therefor you do 12 divided by 3

to get 4
slavikrds [6]3 years ago
5 0
4:7 =12:21
4 \times 3 = 12 \\ 7 \times 3 = 21
You might be interested in
Polygon ABCDEF is the result of a translation of polygon GHIJKL . GH¯¯¯¯¯¯ is parallel to LK¯¯¯¯¯ in the pre-image.
SSSSS [86.1K]

the picture in the attached figure N 1


<span>the answer in the attached figure N 2</span>


6 0
3 years ago
Read 2 more answers
Need a lot of helpppp
Ulleksa [173]

Answer:

A

Step-by-step explanation:

A is a triangular prism

5 0
3 years ago
Read 2 more answers
a jet travels 520 miles in 5 hours how far will it fly in 12,hours what is the rate of speed of the jet
Elanso [62]
×by 2 then find 10%and then times the 10% by 2 then add it on
3 0
4 years ago
The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 269 day
fenix001 [56]

Answer:

a) 279 b)254

Step-by-step explanation:

Mean = 269 days

standard deviation = 8 days

let n be the pregnancy lenght.  

using normal distribution formula

z = (n – mean)/ standard deviation

n = z * standard deviation + mean

Now, z values for the top 12% has to be found using a z table.

The top 12% means 88% of area under the curve. In this case z = 1,176

n = 1,176 * 8 + 269

n = 278.4 = 279

The bottom 3% means 97% of area under the curve. In this case z = -1,882

n = -1,882 * 8 + 269

n = 253.94 = 254

6 0
4 years ago
F(x) = 3x + 2 What is f(5)?
Ulleksa [173]

Answer:

if the equation if f(x) = 3x + 2, then f(5) would be equal to 3*5 + 2 = 17.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is the area of the triangle below
    13·1 answer
  • The original price P of a shirt less $5 discount​
    12·2 answers
  • Use a protractor to draw the angle 75 degrees
    7·1 answer
  • Spending more time with her grandchildren is most likely a short-term goal
    14·1 answer
  • Perform the operation below using a number line. -7-(-8). ASAP. pleeease help.​
    5·1 answer
  • A scientist wants to create 120 ml of a solution that is 30% acidic. To create this solution, she has access to a 20% solution a
    7·1 answer
  • If the circumference of a circle is 36, what is the length of an arc of
    12·1 answer
  • Francis heard that a car stereo system was on sale for 30% off. If the sale price was $57.75, what was the original price of the
    12·2 answers
  • Find the surface area using the net. PLEASE IF ANYONE KNOWS THE RIGHT ANSWER HELP ME PLEASE I NEED THE STEPS FOR THE ANSWER IF P
    5·1 answer
  • Jessle served 11 pints of orange Juice at her party. How many quarts of orange juice did she serve?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!