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grin007 [14]
3 years ago
12

Is (3,-1) a solution of this system: y=2-x 3-2y=2x

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0
Plug in (3,-1) into equations to see:
-1=2-3
-1=-1 CHECK

3-2(-1)=2(3)
3+2=6
5=6 NO

This is not a solution.
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Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
sergey [27]

Step 1) Divide the figure into separate shapes

Long rectangle: 27 x 5

Triangle: 3 x 4

Middle rectangle: 15 x 7

Small rectangle: 6 x 3

Step 2) Find the area of each shape

Long rectangle: A = 27 x 5 = 135

Triangle: A = 1/2 x 3 x 4 = 6

Middle rectangle: A = 15 x 7 = 105

Small rectangle: 6 x 3 = 18

Step 3) Add all of the areas together

A = 135 + 6 + 105 + 18 = 264 square feet

Hope this helps! :)

8 0
3 years ago
Does someone know how to answer number 8, do I have something wrong? I need a bit of help!
morpeh [17]
Probably be what if the teacher had a number -10
6 0
3 years ago
Erica babysits for 4.5 hours and is paid $27. If the people she babysits for have $34 to pay her, how long can they stay out?
Zigmanuir [339]

Answer:

5 2/3 hours  

Step-by-step explanation:

We can use a ratio to solve this problem

hours over money


4.5 hours         x hours

-------------    =  ------------

27 dollars        34 dollars


Using cross products

4.5 * 34 = 27 * x

153 =27x

Divide each side by 27

153/27 = 27x/27

5.666666 hours




3 0
3 years ago
Recent statistics show that 62% of people wash their hands after using the restroom.If you shake hands with three random people,
Sedbober [7]

Answer:

p = 0.62

Step-by-step explanation:

Probability that all three has washed their hands after previously using the restroom = 0.2383 approx. The probability that all of the 3 washed their hands after previously using the restroom is 0.2383. Explanation: It is given that, 62% of people wash their hands after using the restroom that is p = 0.62.

6 0
3 years ago
8(-9-5x)+4b X=9 B=-9
True [87]
-468
Explanation: Substitute in the numbers for the variables presented. I’ve shown it step-by-step in the photo below.

6 0
3 years ago
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