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3 years ago

Can somebody plz help answer these questions CORRECTLY thanks!!

Mathematics

1 answer:

Shalnov [3]3 years ago

6 0

Answer:

a)72% b)75%

Step-by-step explanation:

I’m not really sure bout a. If it changed to 50, I kept the amount she answered correct but out of 50-(36/50) to get the percent. b) is the 36 she got correct out of the 48 she tried to do-36/48 x 100

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Jessica bought 9 bags of candy. Each bag had the same number of candies. She had a total of 54 candies. How many candies were in

Katena32 [7]

Answer:

6 candies per bag

Step-by-step explanation:

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2 years ago

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To find the height of a tower, a surveyor positions a transit the is 2 meters tall at a spot of 40 meters from the base of the t

Mrac [35]

The height of the tower roughly equals 41.421 meters.

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4 years ago

Two binomials that are factors of x^2+8x+12

alina1380 [7]

Answer:

(x+2) (x+6)

Step-by-step explanation:

x^2+8x+12

What 2 numbers multiply together to give you 12 and add together to give you 8

2*6 = 12

2+6 = 8

(x+2) (x+6)

5 0

3 years ago

PLEASE PLEASE PLEASE HELP!!! I NEED MY GRADE TO BE UP BY BEFORE TOMORROW THESE ARE ALL THE POINTS I HAVE! 35 POINTS!!! Match the

hodyreva [135]

Answer:

1. A arithmetic sequence that starts at 1 and has a common difference of 3

(d) 1, 4, 7, 10, 13, ...

2. A geometric sequence that starts at 1 and has a common ratio of 3

(h) 1, 3, 9, 27, 81, ...

3. 15, 19, 23, 27, 31, ...

(b) arithmetic sequence; common difference of 4

4. 3, 27/3, 27, 243/3, 243, ...

5. -2, 16/4, -8, 16, -32, ...

(a) geometric sequence; common ratio of -2

6. 8, 40, 200, 1000, 5000, ...

(i) geometric sequence; common ratio of 5

7. 1432, 143.2, 14.32, 1.432, ...

(f) geometric sequence; common ratio of 0.1

8 0

4 years ago

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Hello! I'm having a really hard time solving this by Elimination and could really use some help

Mamont248 [21]

Answer:

x= 3, y=0, z= 1

Step-by-step explanation:

Let's label the 3 given equations first.

2x +3y +4z= 10 -----(1)

3x +2y -4z= 5 -----(2)

x +4y +2z= 5 -----(3)

(1) +(2):

This is to eliminate the z term.

2x +3y +4z +3x +2y -4z= 10 +5

5x +5y= 15

Divide by 5 on both sides:

x +y= 3 -----(4)

(3) ×2:

2x +8y +4z= 10 -----(5)

(2) +(5):

This is to eliminate z term.

3x +2y -4z + 2x +8y +4z= 5 +10

5x +10y= 15

Divide by 5 throughout.

x +2y= 3 -----(6)

(6) -(4):

x +2y -(x +y)= 3 -3

x +2y -x -y= 0

y= 0

subst. y=0 into (4):

x +0= 3

x= 3

subst. x=3, y=0 into (3):

3 +4(0) +2z= 5

3 +2z= 5

2z= 5 -3

2z= 2

z= 2÷2

z= 1

6 0

3 years ago