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forsale [732]
3 years ago
15

Please help on 6-8!! 20 points

Mathematics
2 answers:
Marta_Voda [28]3 years ago
8 0
6. 5 shirts  20 minutes Multiply both by 3 to get to 60 minutes 15 shirts  60 minutes 15 shirts per hour 
7. 250 miles + 50 miles = 300 miles 300 miles / 5 hours = 60 miles per hour
8. 360 pages / 12 hours = 30 pages per hour400 pages / 30 pages per hour = 13 1/3 hours = 13 hours and 20 minutes
alex41 [277]3 years ago
6 0
6) 20 minutes is 1/3 of an hour.  To find out how many T-shirts per hour, we multiply how many can be produced in 20 minutes by 3.

5 T-shirts X 3 =
15 T-shirts per hour.

7) From Jefferson to Paxten overall, it's 300 miles.  Since we're determining miles per hour, we divide 300 by 5 to find out how fast he was travelling.

300 / 5 = 60 MPH

8) This problem explains a fraction, we just have to find the corresponding fraction with a missing denominator.

360 / 12
400 / ?

360 / 400 = 9 / 10

Multiplying the reciprocal by 12 will give us the answer.

(10 / 9) X 12 = 13 Hours and 20 Minutes.


Hope this helps!
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Which transformation will map an isosceles trapezoid onto itself? rotation by 180° about its center, reflection across a diagona
alukav5142 [94]

Answer:

The correct option is 4.

Step-by-step explanation:

The non parallel sides of an isosceles trapezoid are congruent.

The image of an isosceles trapezoid is same as the preimage of isosceles trapezoid if

1. Reflection across a line joining the midpoints of parallel sides.

2. Rotation by 360° about its center.

3. Rotation by 360° about origin.

If we rotate the trapezoid by 180° about its center, then the parallel sides will interchanged.

If we reflect the trapezoid across a diagonal, then the resultant figure will be a parallelogram.

If we reflect across a line joining the midpoints of the nonparallel sides, then the parallel sides will interchanged.

After rotation by 360° about the center, we always get an onto figure.

Therefore option 4 is correct.

6 0
3 years ago
Read 2 more answers
A campground owner has 24002400 m of fencing. he wants to enclose a rectangular field bordering a​ river, with no fencing along
Free_Kalibri [48]
We define variables:
 x = represent the width of the field
 y = represent the length of the field
 We write the perimeter (with no fencing along the river):
 2400 = 2x + y
 We clear y:
 y = 2400-2x
 Answer:
 
an expression for the length of the field as a function of x is:
 
y = 2400-2x
4 0
3 years ago
Mika bought 9 rolls of film to take 180 pictures on a field trip. Some rolls had 36 exposures and the rest had 12 exposures. How
Juli2301 [7.4K]

The number of each type Mika bought =x = 6.8 rolls; y= 2.2 rolls.

<h3>Calculation using ratio</h3>

The number of rolls of film Mika  bought =  9 rolls

The number of rolls that had 36 exposures = x

The number of rolls that had 12 exposures = y

The total number of exposures = 36 + 12 = 48

To find the exposure by one roll = 48/9 = 5.3

If one roll = 5.3 exposure

    x roll    = 36 exposure

Make x roll the subject of formula,

x roll = 36/5.3 = 6.8 rolls

  • If one roll = 5.3 exposure

    y roll    = 12 exposure

Make y roll the subject of formula,

y = 12/5.3 = 2.2 rolls

Therefore, the number of each type Mika bought = x = 6.8 rolls; y= 2.2 rolls.

Learn more about ratios here:

brainly.com/question/2328454

#SPJ1

6 0
2 years ago
Put these fractions in order of size
KIM [24]
1/6 = 4/24
3/8 = 9/24
11/24
1/3 = 8/24
5/12 = 10/24

1/6, 1/3, 3/8, 5/12, 11/24
5 0
3 years ago
If quarterly payments are made for 15 years, find the value for n in the following present value ordinary annuity formula.
miss Akunina [59]

Answer:

  b.  (60)

Step-by-step explanation:

n represents the number of payments. If there are 4 per year for 15 years, that's a total of 4×15 = 60 payments.

  n = 60

7 0
3 years ago
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