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Andrews [41]
3 years ago
14

Chris surveyed the sixth grade at his school and found that 20% of the students walk to school. If 60 students walk to school, t

hen how many students are in the 6th grade?​
Mathematics
2 answers:
notsponge [240]3 years ago
6 0

Answer:

simple answer <u>30</u><u>0</u>

Step-by-step explanation:

20%=60 students. 100%/20%=5. 60*5=300 students

telo118 [61]3 years ago
4 0

\huge \mathfrak{ Answer :  - }

60 <u>students</u> walk to school, which is 20 % of the <u>total students</u> studying there,

so, let the the total number of students be " x "

now, we know

=》

20  \% \:  \: of \: \:  x = 60

=》

\dfrac{20}{100}  \times x = 60

=》

\dfrac{1}{5}  \times x = 60

=》

x = 60 \times 5

=》

x = 300

hence, the total number of students :

x = 300

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∠A and ∠B are adjacent. The sum of their measures is 92∘. ∠A measures (2x+5)∘. ∠B is three times the size of ∠A.
Ilia_Sergeevich [38]

Answer:

Equation:  2x + 5 + 6x + 15 = 92

Solution:  x = 9

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Step-by-step explanation:

measure of ∠B = 3(2x + 5) = 6x + 15

The sum of the angles = 92 = 2x + 5 + 6x + 15

92 = 8x + 20

72 = 8x

x = 9

m∠A = 2(9) + 5 = 18 + 5 = 23

m∠B = 6(9) + 15 = 54 + 15 = 69

Check:  23 + 69 = 92  and 23(3) = 69

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3 years ago
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navik [9.2K]

Answer:

1. 104

2. 52

3. 52

Step-by-step explanation:

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7 0
2 years ago
The equation of a circle is given below.
BARSIC [14]

<u>Given</u>:

The equation of the circle is x^2+(y+4)^2=64

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<u>Center</u>:

The general form of the equation of the circle is (x-h)^2+(y-k)^2=r^2

where (h,k) is the center of the circle and r is the radius.

Let us compare the general form of the equation of the circle with the given equation x^2+(y+4)^2=64 to determine the center.

The given equation can be written as,

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Comparing the two equations, we get;

(h,k) = (0,-4)

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<u>Radius:</u>

Let us compare the general form of the equation of the circle with the given equation x^2+(y+4)^2=64 to determine the radius.

Hence, the given equation can be written as,

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3 years ago
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Serggg [28]

Answer:

x = (5 + i sqrt(15))/4 or x = (5 - i sqrt(15))/4

Step-by-step explanation:

Solve for x:

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Hint: | Express sqrt(-15) in terms of i.

sqrt(-15) = sqrt(-1) sqrt(15) = i sqrt(15):

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Answer:

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