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3 years ago

1. Solve for x.

Mathematics

2 answers:

kati45 [8]3 years ago

7 0

This is the answer for the first one

soldier1979 [14.2K]3 years ago

6 0

Hello there!
1.)x=12 2.)x=8 3.)x=3 4.)x/b=5 5.)x=11 6.)x=-4 7.) about 25 8.)-4x+15 9.) 37/3 x +1 10.)63.74% chance 11.) 45 square feet 12.)26.66665

Hope this helps

Have a great day/night

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maxonik [38]

Answer:

Step-by-step explanation:

P=2(l+w)=2·(7+4)=22

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WITCHER [35]

I would range it from 2 to 30.
This is because the lowest value is 2 and the highest value is 30.
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4 years ago

If you can answer this that would be amazing thank you!!

Blizzard [7]

Answer:

BC ≈ 19.4 cm

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos71° = $\frac{adjacent}{hypotenuse}$ = $\frac{AB}{BC}$ = $\frac{6.3}{BC}$ ( multiply both sides by BC )

BC × cos71° = 6.3 ( divide both sides by cos71° )

BC = $\frac{6.3}{cos71}$ ≈ 19.4 cm ( to 3 significant figures )

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3 years ago

40% of the students in a class are girls and the number of boys is 24 find the total number of students and the number of girls

navik [9.2K]

Answer:

Girls = 16

Total students = 40

Step-by-step explanation:

40% of the students are girls, this means 60% of the students are boys.

To find the number of girls, setup a proportion using the percentages and actual number of students in the class. I am going to make the numerator the numbers that go with the girls and the denominator will be the numbers that go with the boys.

Also let's convert the percentages to decimals by moving the decimal two places left.

40% = 0.4 and 60% = 0.6

$\frac{.4}{.6} =\frac{g}{24} \\.6g=9.6\\\frac{.6g}{.6} =\frac{9.6}{.6} \\g=16$

Now let's find the total number of students by adding the number of girls to the number of boys.

16 + 24 = 40

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wlad13 [49]

Answer:

3/4

Step-by-step explanation:

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