MATHEMATICS MIDDLE SCHOOL

Twice the number of books divided by fifteen (Which represents the phrase?)

A. 2n/15
B. 15n/2
C. 2+n/15
D. n/2(15)

Answers

Answer 1

Answer: It is A. 2n/15. You can think of n as the books

Answer 2

Answer:

Answer:

Step-by-step explanation:

2* the number of books is 2n then you have to divide by 2 so. . . 2n/15

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|60| ___ |-60| >= <fill in the blank
Round 3.38 to the nearest tenth of a dollar

Write the equation of the line that is perpendicular to the line y = 2x + 2 and passes through the point (6, 3). y = 2x + 6

y = - x + 3

y = - x + 6

y = 2x + 3

Answers

The equation of line is:

$y=-(1)/(2)x+6$

Further explanation:

Given

y = 2x + 2

Comparing it with standard form:

y=mx+b

Let m1 be the slope of given line

$m_1=2$

We know that product of slopes of two perpendicular lines is -1

Let m2 be the slope of second line

$m_1.m_2=-1\n2*m_2= -1\nm_2 = -(1)/(2)$

Putting the value of m2 in standard form

$y=-(1)/(2)x+b$

To find the value of b, putting (6,3) in equation

$3=-(1)/(2)(6)+b\n3=-3+b\n3+3=b\nb=6$

Putting the values of b and m, we get

$y=-(1)/(2)x+6$

The equation of line is:

$y=-(1)/(2)x+6$

Keywords: Slope, Point-slope form

Learn more about slope at:

#learnwithBrainly

Answer:

its actually c

Step-by-step explanation:

Jenna is twice as far from the finish line as she is from the start of a 10 km race. how far has she ran?

Answers

If she is still twice as far from the finish as she is from the start,
then she has run one-third of the course so far, and has two-thirds
left to go.

1/3 of 10 km = 10/3 km = 3 and 1/3 km, or 3,333 and 1/3 meters .

Please explain this one

Answers

round each number and then do what the problem asks you to do wether that be subtraction or addition.

just subtract and round!

Rina drove for 1 hour at 45 mph and 1.5 hours at 50 mph. What was her average speed for the trip?

Answers

Answer:

Her average speed for the trip was 48 mph.

Step-by-step explanation:

Rina drove 1 hour at the speed = 45 mph

Distance covered in 1 hour = 45 miles

she drove 1.5 hours at the speed = 50 mph

Distance covered in 1.5 hour = 50 × 1.5 = 75 miles

Total distance covered by Rina = 45 + 75 = 120 miles

Total time taken by Rina = 1 + 1.5 = 2.5 hours

Average speed = Total distance / Total time

= 120 ÷ 2.5 = 48 mph

Her average speed for the trip was 48 mph.

1hour at 45mph , total distance = 45miles
1.5hours at 50kmph , total distance= 50 × 1.5 = 75miles

total distance tracaled = 120mls
total time = 2.5 hours

$(miles)/(hour) = (120)/(2.5) = 48mph$

Ow many times does 60 goes into 125 for a mixed number