3 years ago

20 POINTS HELP FAST

2 answers:

3 0

Answer:

the answer is 20/72 = x/480 . this is because u have to add the numbers for the first sample to find the sample size and then make a ratio to determine if the sample size increases to 480 .

Alenkinab [10]3 years ago

3 0

Answer:

its D.

Step-by-step explanation:

You might be interested in

Select the correct answer

scoray [572]

Answer: A

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A machine takes 2.8 hours to make 9 parts at that rate,how many parts can machine make in 28.0

BigorU [14]

The answer is 90.
28/2.8 = 10
10 x 9 = 90

4 0

3 years ago

roberto is makeing cookies using a recipe.he will use 1/2 of every recipe listed in the recipe.if the recipe requires 3/4 cup of

kupik [55]

3/4 divided by 1/2 is 1.5/4

4 0

3 years ago

The given value below figure find the value of x

tino4ka555 [31]

Answer:

Step-by-step explanation:

We know:

The sum of the quadrilateral angles measures 360°.

Therefore we have the equation:

$30^o+39^o+48^o+m\angle D=360^o\qquad(1)$

The sum of angles x and D is equal to 360°. Therefore we have the other equation:

$x+m\angle D=360^o\qquad(2)$

From (1) and (2) we have:

$x+m\angle D=30^o+39^o+48^o+m\angle D\qquad\text{subtract}\ m\angle D\ \text{from both sides}\\\\x=30^o+39^o+48^o\\\\x=117^o$

6 0

3 years ago

Can anyone help check if my calculation is correct or wrong?

8_murik_8 [283]

It’s correct good job

6 0

3 years ago

Read 2 more answers