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Nadusha1986 [10]
3 years ago
13

Pls help me

Mathematics
1 answer:
prisoha [69]3 years ago
6 0

Answer:

the second one

Step-by-step explanation:

since 100% of 2 equals 2 then we know that 50% or half of 2 equals 1 so just add 2+2+1 and you get 5 miles Miki jogs

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A cube has six sides that are numbered 1 to 6. The sides numbered 1, 2, and 5 are green, and the sides numbered 3, 4,
Katarina [22]

Answer:

5/6

Step-by-step explanation:

The sides numbered 1,2,5 are green and 2,4,6 are even  

We cannot count the 2 twice, so there are 5 unique possibilities of getting either a green or an even

There are 6 total possibilities when rolling the die  1,2,3,4,5,6

P (green or even) = green or even/ total

                             = 5/6

8 0
2 years ago
An education center offers a total of 400 math, physics and
mihalych1998 [28]

Answer: 30

Step-by-step explanation:

3+4+3=10 400/10=40 so each has 40 so math has 120 120*25=3000 for physics is 4*40 so 160 160*20=3200 9800-3000-3200=3600 3*40=120 3600/120=30

3 0
2 years ago
Counter example to: every perfect square has exactly 3 factors
77julia77 [94]
Well 1 is a perfect square and it only has 1 factor.
16 is a perfect square and its' factors are 1, 2, 4, 8, and 16
6 0
2 years ago
The teacher asked 4 students to measure 4 different objects. Here are the results
posledela

Answer:

<em>Student 3 had the greatest percentage error.</em>

Step-by-step explanation:

<u>Student 1</u>

Actual length = 50in

Measured length = 49in

Error = 50 - 49 = 1

Error% = 1/50 × 100

= 1 × 2

= 2%

<u>Student</u><u> </u><u>2</u>

Actual length = 100cm

Measured length = 110cm

Error = 100 - 110 = 10

Error% = 10/100 × 100

= 10 × 1

= 10%

<u>Student</u><u> </u><u>3</u>

Actual length = 2cm

Measured length = 2.5cm

Error = 2 - 2.5 = 0.5

Error% = 0.5/2 × 100

= 0.5 × 50

= 25%

<u>Student</u><u> </u><u>4</u>

Actual length = 10ft

Measured length = 9½ft

Error = 10 - 9½ = ½

Error% = ½/10 × 100

= ½ × 10

= 1 × 5

= 5%

#teamtrees#WAP

7 0
3 years ago
use the substitution method to solve the system of equations choose the correct orderd pair. 3x-y=7 2x-2y=2
sergey [27]

Answer:

(3,2)

Step-by-step explanation:

We are given the system:

3x-y=7

2x-2y=2.

We are asked to solve this by substitution.  We need to pick an equation and pick a variable from that equation to solve for that variable.

I really like either for this.  Some people might go with the first one though. Let's do that.  I will solve the first one for y.

3x-y=7

Subtract 3x on both sides:

   -y=-3x+7

Divide both sides by -1:

     y=3x-7

Now we are ready for substitution.  We are going to plug this equation into the second equation giving us:

2x-2y=2 with y=3x-7 gives us:

2x-2(3x-7)=2

Distribute:

2x-6x+14=2

Combine like terms:

-4x+14=2

Subtract 14 on both sides:

-4x      =2-14

Simplify:

-4x       =-12

Divide both sides by -4:

  x       =-12/-4

Simplify:

 x         =3

So using y=3x-7 and x=3, I will find y now.

y=3x-7 if x=3

y=3(3)-7   (I inserted 3 for x since we had x=3)

y=9-7       (Simplified)

y=2           (Simplified)

The answer is (x,y)=(3,2).

6 0
2 years ago
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