3 years ago

Write seven hundred twenty-one in standard form

Mathematics

1 answer:

Zanzabum3 years ago

6 0

Answer:

721

Step-by-step explanation:

dog you in elementary school

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There are 32 students in a class. Of the class, 3/8 of the students bring their own lunches. How many students bring their lunch

OverLord2011 [107]

Answer:

The number of students that bring their lunches is 12

Step-by-step explanation:

Let

x -----> the number of students that bring their lunches

y -----> the total number of students in a class

we know that

The number of students that bring their lunches divided by the total number of students in a class must be equal to 3/8

$\frac{x}{y}=\frac{3}{8}$

$x=\frac{3}{8}y$ -----> equation A

$y=32$ -----> equation B

substitute the value of y in equation A and solve for x

$x=\frac{3}{8}(32)$

$x=12$

therefore

The number of students that bring their lunches is 12

6 0

3 years ago

1. a=5, b = 12, c = ?

miss Akunina [59]

Answer:

c=17

Step-by-step explanation:

3 0

3 years ago

The solution set of the equation 8x + 12 = 5x – 21.

erastovalidia [21]

Answer:

8x + 12 = 5x -21

8x-5x=-12-21

3x=-33

x=-33/3

x=-11

Hope it helps

6 0

3 years ago

What is the number of coefficients in 6a-3, 0.2-y+8z, and 1/2 n? <br><br> Someone please help

hjlf

There are 3 coefficents. There is one in 6a, which is 6, one in 8z, which is 8, and one in 1/2n, which is 1/2.

Hope this helps, Ngam123!

3 0

3 years ago

Read 2 more answers

If g(x) =3/2 x +4, what is the value of g(2)?

Otrada [13]

Answer:

Step-by-step explanation:

g(x) = 3/2 x + 4

g(2) = 3/2 * 2 + 4

g(2) = 3 +4

g(2) = 7

8 0

2 years ago