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Sonja [21]
2 years ago
7

Mateo's family took a trip to visit some relatives. They drove for 2 1/2 hours at 55 mph to get there but the trip home took the

m 15 minutes longer. At what speed were they traveling on the drive home?
Mathematics
1 answer:
Eva8 [605]2 years ago
7 0

Answer:

 Speed they were traveling on the drive home = 50 mph

Step-by-step explanation:

Trip to relatives home:

   Speed = 55 mph

   Time taken = 2 1/2 hours = 2.5 hours

   Distance = Speed x Time taken = 55 x 2.5 = 137.5 miles.

Trip to drive home:

   Time taken = 2 1/2 hours + 15 minutes = 2 3/4 hours = 2.75 hours

   Distance  = 137.5 miles.

   Speed = Distance / Time = 137.5/2.75 = 50 mph

Speed they were traveling on the drive home = 50 mph

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There are 60 animal exhibits at the local zoo. What percent of the zoo's exhibits does each animal class represent?​
snow_lady [41]

Answer:

30+15+12+3=  60

for mammal 30/60=0.50%

reptile 15/60=0.25%

fish  12/60= 0.20%

bird 3/60=0-05%

i hope that helps

8 0
3 years ago
Is 3/8 bigger than 45/100
marusya05 [52]
No, 45/100 is greater. 3/8 as a decimal is .
0.375 and 45/100 is 0.45 the tenth place is larger making the number larger
5 0
2 years ago
What is the answer to this equation?
RoseWind [281]
This might be right?

7 0
2 years ago
Read 2 more answers
HELP PLEASE
nordsb [41]

Answer:

<h3>perpendicular line:    y = -¹/₆ x + 4¹/₃ </h3><h3>  parallel line:              y = 6x - 45 </h3>

Step-by-step explanation:

y=m₁x+b₁   ⊥   y=m₂x+b₂   ⇔    m₁×m₂ = -1

{Two lines are perpendicular if the product of theirs slopes is equal -1}

y = 6x - 7   ⇒   m₁=6

6×m₂ = -1        ⇒    m₂ = -¹/₆

 

The line y=-¹/₆ x+b passes through point (8, 3) so the equation:

3 = -¹/₆ ×8 + b must be true

3 = -⁴/₃ + b

b = 4¹/₃

Therefore equation in  slope-intercept form:

                                                     y = -¹/₆ x + 4¹/₃

y=m₁x+b₁   ║   y=m₂x+b₂   ⇔    m₁ = m₂

{Two lines are parallel if  their slopes are equal}

y = 6x - 7   ⇒   m₁=6   ⇒   m₂=6

The line y=6x+b passes through point (8, 3) so the equation:

3 = 6×8 + b must be true

3 = 48 + b

b = -45

Therefore equation in  slope-intercept form:

                                                     y = 6x - 45

7 0
3 years ago
The lines below are perpendicular if the slope of the solid line is 4 what is the slope of the dashed line
const2013 [10]

Answer:

The slope of the dashed line is -\frac{1}{4}

Step-by-step explanation:

Perpendicular lines and slopes:

If two lines are perpendicular, the multiplication of their slopes is -1.

What is the slope of the dashed line

Perpendicular to a line with slope 4, so:

4m = -1

m = -\frac{1}{4}

The slope of the dashed line is -\frac{1}{4}

8 0
2 years ago
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