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3 years ago

How do you solve #5?

Mathematics

1 answer:

Oduvanchick [21]3 years ago

7 0

Ella has 12 and Maria has 7. Ella can make three while Maria can make 8. I will do a side by side count for you.

12 + 3=15
7 + 8=15

In one more day Ella and Maria will have made the same amount of blankets.

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Simply the expression: <br> Pls need help fast!!!!!!

sukhopar [10]

Answer:

4^6

Step-by-step explanation:

6 0

3 years ago

Angle XYZ = 2X° and angle PQR = (8X -20)°. If angle XYZ and angle PQR are supplementary, find the measure of each angle. Angle P

Alchen [17]

Answer:

$PQR = 140$

Step-by-step explanation:

Given

$XYZ = 2X$

$PQR = 8X - 20$

Required

Find PQR

Since both angles are supplementary, we have:

$XYZ + PQR = 180$

This gives:

$2X + 8X - 20 = 180$

$10X - 20 = 180$

Collect Like Terms

$10X = 20 + 180$

$10X = 200$

Divide through by 10

$X = 20$

Substitute 20 for X in $PQR = 8X - 20$

$PQR = 8 * 20 -20$

$PQR = 140$

7 0

3 years ago

Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Ugo [173]

Answer:

$s^2 = 0.01$

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$

First, we calculate the mean

$\overline x = \frac{\sum x}{n}$

$\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}$

$\overline x = \frac{7.4}{4}$

$\overline x = 1.85$

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$ becomes

$s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}$

$s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}$

$s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}$

$s^2 = \frac{0.03}{3}$

$s^2 = 0.01$

<em>Hence, the variance is 0.01</em>

5 0

3 years ago

Determine x if f(x)=60 explain your choice.

mihalych1998 [28]

Answer:

x=60

Step-by-step explanation:

since f(x) =60 then y is f(x) and in the form y=x 60 is x

3 0

3 years ago

Working alone, Carlos can oil the lanes in a

dmitriy555 [2]

Answer:

3 1/2 hours

Step-by-step explanation:

6 0

4 years ago