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Talja [164]
3 years ago
8

Can someone please help me with these two questions? I would be really grateful...

Mathematics
1 answer:
Roman55 [17]3 years ago
6 0

Answer:

1. County B

2. (I'm going to keep working on an answer for this one).

Step-by-step explanation:

A. 25 ppl × 100 sq miles = 2500

100 ppl × 40 sq miles (25 kilometers square) = 4000

County B

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PLEASE SHOW WORK - HELP FAST
Ksivusya [100]

Answer:

SSS

∆PQR = 43

Step-by-step explanation:

The postulate to solve ∆PQR ≅ ∆STU is SSS. Both of the triangles have all three sides given, which means it can be solved for congruence.

9 + 6y + 5 + 14 = 9 + 8y +14

28 + 6y = 9 + 8y + 14

28 + 6y = 8y + 23

      -6y    -6y

--------------------------

  28 = 2y + 23

 -23           -23

---------------------

      5 = 2y

     ----   ----

      2      2  

  2.5  =   y

9 + 14 + 6(2.5) + 5

23 + 15 + 5

 23 + 20

     43

∆PQR = 43

4 0
2 years ago
Solve the following systems algebraically<br> a. x+2y=17 <br> x-y=2
motikmotik
There are 3 methods to solve this. elimination substitution and graphing but i am going to use the elimination method.
  x+2y=17
 <u> x-y   =2
</u> 0+3y  =15   ( subtracted down to eliminate the x)( x-x=0, 2y-(-y)=3y, and 17-2=15)
     3y=15    (divide both sides by 3 to solve for y)
      y=5
<u>substitute the y=5 in any of the above equations and solve for x
ie... ( </u>meaning where you find y in the equation, u replace it with a 5)

it will be easier to solve for x in (x-y=2) so i will use that one.
x-(5)=2  ( add 5 on both sides to solve for x)
x=7
5 0
3 years ago
The density of apple juice is 1. 04 grams per cm^3
-BARSIC- [3]

Answer:

1,040kg/m³

Step-by-step explanation:

1g/cm³ =1,000kg/m³

1.04g/cm³=?

= 1.04×1000

Density =1,040kg/m³

5 0
2 years ago
If y= -3, then 4+y/4y
Makovka662 [10]

Answer:

B

Step-by-step explanation:

if y = -3 then 4+(-3)/4(-3) would be 4-3 = -1 over -12 so -1/-12 or 1/12 -->B

3 0
2 years ago
Anna and Carla are 9 miles apart on a path when they start moving toward each other. Anna runs at a constant speed of 4 miles pe
Sergio [31]

Answer:

The answer is 3 miles.

4+2=6 , 6-9=3

4 0
2 years ago
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