HELP PLEASEE FOR HW!!!

Mathematics

2 answers:

PtichkaEL [24]3 years ago

7 0

Answer:

200+15x=320

x= 8

saveliy_v [14]3 years ago

3 0

200+15x=320

and then the actual answer to the question is 8 lawns.

You might be interested in

A survey of 96 students on campus showed that 29 read the Campus Observer student newspaper that morning, 24 read the news via t

77julia77 [94]

Answer:

Step-by-step explanation:

Part 1

(a) How many read the Internet news or local paper but not both?

There are 25

students who read the Internet news or local paper but not both.

Part 2

(b) How many read the Internet news and the local paper but not the Campus Observer?

There are 3

students who read the Internet news and the local paper but not the Campus Observer.

Part 3

There are 65

students who read the Internet news or the Campus Observer.

6 0

4 years ago

2m/(2m 3)-(2m)/(2m-3)=1how many extraneous solutions does the equation have?

Slav-nsk [51]

$\frac{2m}{2m+3} - \frac{2m}{2m-3} =1 \\ \frac{2m(2m-3)-2m(2m+3)}{4m^2-9} =1 \\ \frac{4m^2-6m-4m^2-6m}{4m^2-9} =1 \\ \frac{-12m}{4m^2-9} =1 \\ -12m=4m^2-9 \\ 4m^2+12m-9=0 \\ m=0.6213 \ or \ m=-3.6213$
For m = 0.6213, $\frac{2(0.6213)}{2(0.6213)+3} - \frac{2(0.6213)}{2(0.6213)-3} \\ \frac{1.2426}{4.2426} - \frac{1.2426}{-1.7574} =0.2929+0.7071=1$
For m = -3.6213, $\frac{2(-3.6213)}{2(-3.6213)+3} - \frac{2(-3.6213)}{2(-3.6213)-3} \\ \frac{-7.2426}{-4.2426} - \frac{-7.2426}{-10.2426} =1.7071-0.7071=1$
Therefore, the equation has no extraneous solution.

4 0

4 years ago

The area of a circle is 43.25cm2.<br> Find the length of the radius rounded to 2 DP.

Monica [59]

Answer:

3.71 cm

Step-by-step explanation:

Hi there!

Area of a circle equation: $A=\pi r^2$ where r is the radius