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balu736 [363]
3 years ago
12

2) Dorothy types 120 words per minute. How many words does Dorothy type in

Mathematics
2 answers:
Artemon [7]3 years ago
7 0

Answer:

210 words

Step-by-step explanation:

120 x 1.75 = 210

Damm [24]3 years ago
6 0

Answer:

D (210)

Step-by-step explanation:

120 times 1.75 equals 210

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Which decimal is equivalent to 10/3
Aneli [31]
3.3333333 repeating
Take 10 and divide it by 3
6 0
3 years ago
2a - 3b = -11<br> a + 3b = 8
dlinn [17]

Answer:

b = 3 and a = -1

Step-by-step explanation:

You have your given equation:

2a - 3b = -11

a + 3b = 8

You need to find what a and b is.

To find b:

2a - 3b = -11

-2a - 6b = -16

I multiplied a + 3b = 8 by -2. When you multiply a number you have to multiply all of them. You have to choose a number that would cancel out all of a.

So now your equation would look like this when you solve for b:

2a - 3b = -11

-2a - 6b = -16

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

a - 9 = -27 then you divide -9 to -27 which is 3 so b = 3.

To find a:

2a - 3b = -11

a + 3b = 8

I multiplied a + 3b = 8 by -1 and 2a - 3b = -11 by -1 as well.

Your equation will look like this when you solve for a:

-2a + 3b = 11

-1a - 3b = -8

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

-3a = 3 then divide -3 to 3 which is -1 so a = -1.

Check to see if you have the correct answer by plugging in the number you got for a and b into the equation and solve.

1. 2(-1) -3(3) = -11

 -2 - 9 = -11

2. -1 + 3(3) = 8

   -1 + 9 = 8

8 0
3 years ago
One team c 82.5% of the football players weigh more then 200 pounds if 40 men are on the team how many weigh more then 200 pound
valentinak56 [21]
The answer is 33 because 40*0.825 or 40*82.5% is 33 men.
7 0
3 years ago
In the morning the temperature is 0 F. It is drop out rate of 3° perh what is the temperature after five hours
r-ruslan [8.4K]

Answer:

-15 degrees

Step-by-step explanation:

3 times 5 is 15 and its negative because it says it DROPS every hour and its taking the temp every 5 hrs

6 0
3 years ago
Given the system of linear equations:
Vanyuwa [196]

Answer:

Step-by-step explanation:

hello :

Part A :  x+6y =6 means : 6y = - x+6

so : y = (-1/6)x+1  an equation for the line (D)

     y = (1/3)x -2 is the line (D')

PartB : solution of the system  : y = (-1/6)x+1 ....(1)    color  red

                                        y =  (1/3)x -2 ....(2)  color  bleu

is the intersection point : (6 ; 0)

PartC : Algebraically  by (1) and (2) : (-1/6)x+1 =  (1/3)x -2

(-1/6)x  - (1/3)x = -2-1

(-x-2x)/6= -3

-3x = -18

so : x = 6  put this value in (1) or (2) : y = (-1/6)(6)+1 =0 the solution is : (6 ;0)

3 0
3 years ago
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