johnmokk johnmokk
  • 20-10-2020
  • Mathematics
contestada

the model shows the expression 21+9 wich expression is equivalent to this sum
​

Respuesta :

zoeyangelee
zoeyangelee zoeyangelee
  • 20-10-2020

Answer:

A

Step-by-step explanation:

First way to do this:

3(7 + 3)

7 + 3 = 10

10 multiplied by 3 = 30

Second way to do this:

3(7 + 3)

3 multiplied by 7 = 21

3 multiplied by 3 = 9

21 + 9 = 30

Hope I helped :)

Please consider Brainliest :)

Answer Link
Mackeey922
Mackeey922 Mackeey922
  • 01-12-2020

Answer:

the answer is a i toke the test

Step-by-step explanation:

Answer Link

Otras preguntas

ΔABC is dilated by a scale factor of 3 with the origin as the center of dilation to form ΔA′B′C′. The slope of AB is -1.2. The length of AB is p units, the leng
In 1895, a German physicist named Wilhelm Roentgen was conducting experiments with vacuum tubes, which he kept completely closed off from light, when he noticed
can anybody help me on this
Angles. Maybe using law of sines
what iş the best prediction of the percentage of the baby rhinoceros body mass used to determine the amount of food given at each feeding when it is 25 weeks ol
does the fairness doctrine violet freedom of the press or freedom of speech
why do nations practice protectionism?
Line AC and ray BQ are perpendicular. What is the measurement of  BQC and does it measures 150°? Hint: It is adjacent to a 90 degree angle. TOGETHER BQA and BQC
how many coefficients are in the expression 5x^3-2x^2+6x-4
Which statement best completes this list?