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3 years ago

I need help plssssssssssssssssssssssss

Mathematics

2 answers:

lesya692 [45]3 years ago

6 0

Answer:

great

Step-by-step explanation:

Bingel [31]3 years ago

3 0

Answer:

26/1 x 6/1 = 156 Heart Beats Per Min.

Step-by-step explanation:

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The teacher drew 2 triangles, 4 squares, and 6 circles on the board. What 10 points

Orlov [11]

Answer:

The answer is 22

Step-by-step explanation:

you have 2 triangles and 4 squares so you equal them up together and you have 22 HOPE THIS HELPS:)

8 0

3 years ago

X^2-8x-36=0<br> solve by completing the square <br> ANSWER ASAP

larisa86 [58]

Answer:

hope it helps

7 0

2 years ago

IS 100 times as great as the number *LOTS OF POINTS*

irakobra [83]

0.8 - 80
3.2 - 320
23.9 - 2,390
Just multiply the numbers by 100 and rennet to move the decimal point to the right when multiplying decimals.

7 0

1 year ago

In the last election, candidate B received twice as many votes as candidate A. Candidate C received 15,000 fewer votes than cand

Sergeeva-Olga [200]

Put in terms of a
b=2a
a=a
c=a-15000
2a+a+a-15000=109000
2a+a+a=124000
4a=124000
a=31000
Candidate B received 62000 votes

6 0

3 years ago

1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the

ipn [44]

Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

$v_1 = 60\ mph$

Sheyna drives back from the lake with average speed of 36 mph

$v_2 = 36\ mph$

It took 2 hours less time to get there than it did to get back.

Let $t_1$ be the time taken to drive to lake.

Let $t_2$ be the time taken to drive back from lake.

$t_2-t_1 = 2$ hrs ..... (1)

To find:

Total time taken = ?

$t_1+t_2 = ?$

Solution:

Let D be the distance to lake.

Formula for time is given as:

$Time =\dfrac{Distance}{Speed }$

$t_1 = \dfrac{D}{60}\ hrs$

$t_2 = \dfrac{D}{36}\ hrs$

Putting in equation (1):

$\dfrac{D}{36}-\dfrac{D}{60} = 2\\\Rightarrow \dfrac{5D-3D}{180} = 2\\\Rightarrow \dfrac{2D}{180} = 2\\\Rightarrow D = 180\ miles$

So,

$t_1 = \dfrac{180}{60}\ hrs = 3 \ hrs$

$t_2 = \dfrac{180}{36}\ hrs = 5\ hrs$

So, the answer is:

$t_1+t_2 = \bold{8\ hrs}$

8 0

3 years ago