3 years ago

What is nine times for a total loss of 15 3/4 yards

Mathematics

1 answer:

love history [14]3 years ago

7 0

Try feet /cm or inches

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The heights of the children at a summer camp are normally distributed with a mean of 54 inches and a standard deviation of 2.4 i

Marta_Voda [28]

Z= (X-mean)/s.d.

X (height in inches) = (Z*sd)+mean = (1.5*2.4)+54 = 57.6 in

6 0

3 years ago

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Gareth 30 students in a class and the ratio of boys to girls in the class is 2:3 calculate the number of goals

pishuonlain [190]

Answer:

<em>There are 12 boys and 18 girls</em>

Step-by-step explanation:

<u>Equations</u>

There are 30 students in a class. Let's call:

x = number of boys

Since the sum of boys and girls is 30:

30 - x = number of girls

The ratio of boys to girls is 2:3, thus:

$\displaystyle \frac{x}{30-x}=\frac{2}{3}$

Crossing denominators:

3x = 2(30 - x)

Operating the parentheses:

3x = 60 - 2x

Adding 2x:

5x = 60

Dividing by 5:

x = 60/5 = 12

x = 12

There are 12 boys and 30-12=18 girls

8 0

3 years ago

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tatyana61 [14]

The inequality is < because the equal sign is an equality.
I don’t need a brai

4 0

3 years ago

Pleasee help asap! will give brainiest

AfilCa [17]

Answer:x=-0.8

5x - 7 =3

-7 -7

5/5x = -4/5

x = -0.8

8 0

3 years ago

Find the value of x in the isosceles triangle shown below.

miss Akunina [59]

Answer:

D. x=4

Step-by-step explanation:

We can solve this with the Pythagorean Theorem for the right triangle that we can see (which is half of the triangle).

The bottom length is 3 and the hypotenuse is 5.

The Pythagorean Theorem is a²+b²=c².

We can plug this in:

3²+x²=5²

9+x²=25

x²=16

x=4

8 0

3 years ago