3 years ago

Mr. Brown can grade 4 exams in 15 minutes. How many exams can he grade in 1 hour? How do you know?

Mathematics

2 answers:

Savatey [412]3 years ago

4 0

16 because you divide i hour by 15 and multiply that by 4:)

mel-nik [20]3 years ago

4 0

4:15
1:.15
X:1H
16:1H

This is because 15x4=1hour and 4x4=16

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Solve by factoring c^2=5c

muminat

Hey there!

c² = 5c

Subtract 5c from both sides:

c² - 5c = 5c - 5c

Simplify :

c² - 5c = 0

c = 5 , c = 0

6 0

3 years ago

Find the coordinates of point X that lies along the directed line segment from Y(-8, 8) to T(-15, -13) and partitions the segmen

Nataly_w [17]

Answer:

C. (-13, -7)

Step-by-step explanation:

The location of a point O(x, y) that divides a line AB with location A $(x_1,y_1)$ and B $(x_2,y_2)$ in the ratio m:n is given by:

$x=\frac{m}{m+n} (x_2-x_1)+x_1\\\\y=\frac{m}{m+n} (y_2-y_1)+y_1$

Therefore the coordinates of point X That divides line segment from Y(-8, 8) to T(-15, -13) in the ratio 5:2 is:

$x=\frac{5}{5+2} (-15-(-8))+(-8)\\\\x=\frac{5}{7} (-15+8)-8=\frac{5}{7}(-7)-8=-5-8=-13 \\\\\\y=\frac{5}{5+2} (-13-8)+8\\\\y=\frac{5}{7} (-21)+8=5(-3)+8=-15+8=-7$

Therefore the coordinates of point X is at (-13, -7)

6 0

3 years ago

Divide the fractions.<br><br> 9/2 divided by 4/10

mario62 [17]

Answer:

11 1/4

Step-by-step explanation:

9/2/4/10

9/2/2/5

9/2*5/2

45/4

11 1/4

7 0

3 years ago

Read 2 more answers

A photograph measures 12 centimetres by 20 centimetres. A printing company enlarges the photo. The length of the enlarged photo

Studentka2010 [4]

Answer:

36 centimeters

Step-by-step explanation:

Since one side is 60 centimeters, just divide by 20 and get 3

Then multiply 12 by 3 and get 36

I hope this helps!

6 0

2 years ago

Convert 6 7/20<br> into a decimal

Veseljchak [2.6K]

Answer:

6.35

Explanation:

7 divided by 20 is 0.35+6= 6.35

4 0

3 years ago