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EleoNora [17]
3 years ago
6

Which statements are correct? Check all that apply. The total number of students is < 160. The total number of students is &g

t; 160. The percent as a part-to-whole ratio is StartFraction 10 Over 100 EndFraction. The percent as a part-to-whole ratio is StartFraction 160 Over 100 EndFraction There are 1,600 students in the school. There are 250 students in the school.
Mathematics
2 answers:
choli [55]3 years ago
7 0

Answer:

B C E

Step-by-step explanation:

dusya [7]3 years ago
3 0

Answer:

The percent as a part to whole ratio is Start Fraction 10 over 100 end fraction

The percent as a part to whole ratio is start fraction 160 over 100 end fraction.

There are 250 students in the school

Step-by-step explanation:

In the Juniour park school there are 160 students and out of these only 10 percent students play musical instruments. The fraction are start with 10 and end 100 is the correct. The ration of the students playing the musical instruments is 10 percents.

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Please use system of linear equations by elimination OR substitution. I need the work as well please.
Olin [163]

1) P= 64 cm, width = x, length = 14 + x

64 = x + x + 14 + x + 14 + x

64 = 4x + 28

4x = 64 - 28

4x = 36

x = 36/ 4

x = 9

AREA = 9 x (9+14)

Area = 9 x 23

Area = 207 cm

2) smaller no. = y, bigger no. = x

x - y = 3

2x+1/2y=36

Next, multiply 2 to first equation and find y:

2x-2y=6

5/2y=30

y = 12

Substitue y to x-y=3 to find x,

x = 15

3) x = pencil, y = pen

5x + 4y = $6.15

8x + 3y = 9.85$

8x + 7y = ?

5x + 4y = 6.15$ multiply both sides by -3

8x + 3y = 9.85$ multiply both sides by 4

-15x + 32x = (-3)*6.15 + 4*9.85

7x = 19.87 multiply both sides by 8/7

8x = (8/7) x 19.87

Add both equations:

32y - 15y = 8x6.15 - 5*9.58

17y = 1.3

y = 91/17) x 1.3

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8x + 7y = $23.244

4) 2l + 2w = 0

2 x 2l + 2 x 1/2w = 40 + 16

l+w = 20

4l+w = 56

I’ve got l = 12 and w = 8

5) answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° = \frac{ab}{bc}

but bc = 20 feet.

⇒ tan 55 ° =   \frac{ab}{20}

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

6) The answer is teh attachment !

7) 3x-x+2=4

HOPE THE ANSWERS HELP!! PL MARK ME BRAINLIEST!

3 0
2 years ago
-7 - 7 ( 8x - 7 ) = - 19 + 5x
Yakvenalex [24]
-7 - 7( 8x - 7 ) = -19 + 5x
⇔ -56x + 49 = -12 + 5x
⇔ -61x = -61
⇔ x = 1
6 0
3 years ago
−3 ( −3b + 5 ) + 9 ( 7b + 5
Arturiano [62]
−3 ( −3b + 5 ) + 9 ( 7b + 5

= 6(12b+5)
8 0
3 years ago
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