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3 years ago

Louisa starts training for cross country. She records how far she can run without stopping each week.

Mathematics

2 answers:

PIT_PIT [208]3 years ago

3 0

Answer:

I need more info!

Step-by-step explanation:

tekilochka [14]3 years ago

3 0

Answer:

She needs 28 pounds

Step-by-step explanation:

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Write the formula for the area of a triangle, A =1/2bh, in terms of h. Find the height of a triangle when A = 18in^2. and b=19in

Brrunno [24]

Answer:

hb≈1.89in

Step-by-step explanation:

4 0

2 years ago

Select the correct answer.

fenix001 [56]

Answer:

Step-by-step explanation:

substitute

6+4=10

12-3=9

4-9=-5

7 0

2 years ago

17cm per minute = meters per hour

Arlecino [84]

Answer: 10.2 meters per hour; or, write as: 10 ⅕ meters per hour.
___________________________________________
Explanation:
_____________________________________
Note: "h" = time in "hour(s)" ;
"cm" = length in "centimeter(s)" ;
"min" = time in "minute(s)";
"m" = length in "meter(s)"
_____________________________________
Note these EXACT conversions:
_________________________________
100 cm = 1 m ;
60 min = 1 h ;
_________________________________
To solve:

Given: 17 cm / min ; convert to: ________ m / h
__________________________________________________
(17 cm / min)* (1 m /100cm) * (60 min / 1 h) = _______ m / h
__________________________________________________
The "cm" units cancel to "1"; the "min" units cancel to "1" and we are left with units of "m/h" {"meters per hour"}.
___________________________________
We are left with (17 *1 m * 60) / (100 * 1 h) = [(17 * 60) m] / [100 h]
= [(17 *60) / 100 ] meters per hour.
________________________________________________________
To simply: (17 * 60) / 100 ;
_________________________
Method 1): To simplify: (17 * 60) / 100 ;

→Rewrite as: (17*60) / 100 = (17*20*3)/(20*5) ;
→Cancel out the "20's "; and rewrite as:

→ (17*60) / 100 = (17*3)/5 = 51/5
= 10.2 meters per hour; or, write as: 10 ⅕ meters per hour.
________________________________________________________
Method 2) To simplify: (17 * 60) / 100 ; Use calculator (or by hand):
___________________________________
→ (17 * 60) / 100 = 1,020 /100
= 10.2 meters per hour; or, write as: 10 ⅕ meters per hour.
__________________________________
Method 3) To simplify: (17 * 60) / 100 ;
_____________________________________
→ (17 * 60) / 100 = ? ;

→ Divide BOTH the "100" AND the "60" by "10";

→ 60÷10 = 6 ; 100÷10 =10; and rewrite—replace the "60" with a "6"; and replace the "100" with a "10" ;
____________________________
→ (17*60)/100 = (17*6)/10 = 102/10

= 10.2 meters per hours; or, write as: 10 ⅕ meters per hour.
____________________________________________________

7 0

3 years ago

Let u =<-4,-3> . Find the unit vector in the direction of u, and write your answer in component form.

vova2212 [387]

Can someone answer this for me too

4 0

3 years ago

Solve each equation. 1. 25 - 3x = 40 2. } (x – 10) = -4

nordsb [41]

Step-by-step explanation:

For no 1

25 - 3x = 40 

- 3x = 40 - 25 

- 3x = 15 

 - x = 15 / 3

Therefore x = - 5 

Now for no. 2

1/3 ( x - 10) = - 4 

( x - 10 ) = - 12 

x = - 12 + 10

Therefore x = - 2 

Hope it will help :)

6 0

3 years ago

Read 2 more answers