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FrozenT [24]
4 years ago
14

Ann is grouping 38 rocks she can put them in to a group of ten as a single rock

Mathematics
1 answer:
tresset_1 [31]4 years ago
8 0
She could put a group of ten
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Aidan drives to school and back each day. The school is 16 miles from his home. He averages 40 miles per hour on his way to scho
Fed [463]
First we have to answers stand that speed is equivalent to the distance traveled in a certain time span. That is speed = distance/time. Conversely, time = distance/speed. We are asked to find the speed going home given, distance, total time and speed going to school. We can answer this equation by adding the time Aidan is spending going and coming back from school 

t = (distance to school)/(speed to school) + (distance to home)/(speed to home)

1hour = (16)/(40) + (16)/(speed to home) 

Speed to home = 26.67miles/hour 
6 0
4 years ago
12
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Actually, this is worth 13 points. not 25. thanks!
7 0
3 years ago
Read 2 more answers
MATH MIDDLE SCHOOL HELP PLS ASAP<br><br><br>what is y? put the correct answer
drek231 [11]

Answer:

  1. The -2 was not distributed properly. -2 should have been multiplied by 7 and -y, which is -14 + 2y
  2. y = 3

I hope this helps!

4 0
3 years ago
Find 4/5% of $60,000
IgorLugansk [536]

Answer:

I think the answer is $480

Step-by-step explanation:

(4/5)/100 *$60000

=$480

7 0
3 years ago
a quadrilateral ABCD in which angle DAB is a right angle. AB is 3.3cm, BC is 3.9cm, CD is 5.2cm and DA is 5.6cm. Find the length
Greeley [361]

Answer:

Part A) BD = 6.5 cm

Part B) see explanation

Step-by-step explanation:

See the attached figure

Part A) Find the length of BD

ΔDAB is a right triangle at A,  AB is 3.3cm ,  DA is 5.6cm

So, DB is the hypotenuse

Using Pythagorean equation:

DB = √(AD² + AB²) = √(3.3² + 5.6²) = √42.25 = 6.5 cm

===================================================

Part B) Show that angle BCD is 90°​

Given: CD is 5.2cm , BC is 3.9cm  and DB = 6.5 cm

So, CD² = 5.2² = 27.04

BC² = 3.9² = 15.21

DB² = 6.5² = 42.25

So, CD² + BC² = 27.04 + 15.21 = 42.25 = DB²

So, DB represent a hypotenuse at ΔBCD

So, the apposite angle of BD is a right angle

So, ∠BCD = 90°

5 0
3 years ago
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