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ANTONII [103]
3 years ago
13

Mrs. Brooks 1st period class has 28 students. 15 of the students are girls. What is the ratio of boys to all students in the cla

ss?
Mathematics
2 answers:
hodyreva [135]3 years ago
6 0
The ratio to boys and girls would be 15girls and 13boys
Nataliya [291]3 years ago
3 0
13boys/15girls is the answer
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-3(8x + 4) + 1/2 (6x - 24)
julsineya [31]

-3(8x + 4) + 1/2 (6x - 24)

-21x - 24

6 0
3 years ago
What are the solutions to the system of circle and line when the circle is given by x²+y²=9, and the line is given by y=4?
san4es73 [151]

Answer:

√7i = x

Step-by-step explanation:

x²+y²=9;

y² = 9-x²

y = √(9-x²)

As line is given by y= 4, the solution of the system is:

4 = √(9-x²)

16 = 9-x²

7 = -x²

-7 = x²

√-7 = x

As √-7 doen't exist, you should use i = √-1;

Thus,

<em>√7i = x</em>

<em></em>

I hope it helps!

4 0
3 years ago
Can someone help me out?
Harman [31]
16 miles.

Divide 4/5 to get .8, an then multiply .8 by 20
3 0
3 years ago
Diane Van Os decided to buy a new car since her credit union was offering such low interest rates. She borrowed 30,000 at 4.75%
mixer [17]

Answer:

Total Interest Diane has to pay is $1,745

Step-by-step explanation:

<u>Behind the Excel sheet</u>

Total Number of Days:

It was the sum 2016 + 2017 + 3 months of 2018

                             19 + 365   + 31 + 28 + 4

<u>Exact Intrest on Loan</u>

the Borrowed Amount is multiplied by Exact Intrest Rate multiplied by Total Number of Days divided by Number of Days in a Year

$30,000 x 0.0475 x (447/365)

4 0
2 years ago
Find the measure of the missing angle.<br> 77°
Georgia [21]

Answer: The missing angle is 13°

Step-by-step explanation:

Let ∠B

be the missing angle.

Let ∠A

be the angle that measures

77∘Let ∠C

the right angle that measures

90∘

The following is true of all triangles:

∠A+∠B+∠C=180∘

Express the above equation as

∠B

in terms of the other angles:

∠B=180∘−∠A−∠C

Substitute the values for ∠A and ∠C

∠B=180∘−77∘−90∘

∠B=13∘

4 0
3 years ago
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