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Alchen [17]
3 years ago
15

Brad spend 3/5 of an hour every day doing his homework. How many hours did he spend on homework in 5 days.

Mathematics
1 answer:
belka [17]3 years ago
6 0

Answer: 3 hours spent on homework in 5 days

Step-by-step explanation:

3/5 of an hour is 36 min.

Multiply 36 by the number of days he spent doing homework (5)

36x5=180 and 180 is equivalent to 3 hrs.

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A typical snake bite delivers 0.0045 grams of venom. Maria and Tammy were asked to write this number in scientific notation. The
Stolb23 [73]

Answer:

Maria

Step-by-step explanation:

A typical snake bite delivers 0.0045 grams of venom.

Maria wrote it in scientific notation as 4.5\times 10^{-3}

Tammy wrote it in scientific notation as 4.5\times 10^{3}

Any number can be written in the form of scientific notation as follows :

N=a\times 10^b (a is real no and b is integer)

The given no is 0.0045.

There are 2 zeroes before 4. Also the decimal is there before 2 zeroes.

0.0045=\dfrac{45}{10000}\\\\=\dfrac{45}{10}\times \dfrac{1}{1000}\\\\=4.5\times 10^{-3}

Hence, Maria is correct.

6 0
3 years ago
Marge purchased bicycle helmets and tire pumps. Each helmet cost $12.00 and each pump cost $8.00. She purchased a total of 18 it
algol [13]

Answer:

11

Step-by-step explanation:

Let the no. of helmet be x

cost of 1 helmet = $12.00

cost of x helmet = $12.00*x = $12x

Let the no. of tire pumps be y

cost of 1 tire pumps = $8.00

cost of x tire pumps = $8.00*y = $8y

Given that total no. of helmet and pump is 18

thus

x + y = 18

y = 18-x

also given

total money spent is $188

thus

12x+8y = 188

using y = 18 - x

we have

12x + 8(18-x) = 188

=> 12x+ 144 - 8x = 188

=> 4x = 188-144 = 44

=> x = 44/4 = 11

Thus, no of helmet bought by Margo is 11.

7 0
2 years ago
Help please asap. best answer gets brainliest.
schepotkina [342]

Answer:

Step-by-step explanation:

4 is coefficient

x is variable

12 is constant

5 0
3 years ago
Read 2 more answers
Which function is shown in the graph below
Alchen [17]

Answer:

y=log1^x

Step-by-step explanation:

plug in one of the points for example (1,0)

in all the choices the only choice that is correct is the second one

4 0
3 years ago
Read 2 more answers
For the function given, state the middle line; f(t) = 40cos (80t + 20)
Digiron [165]

In the standard form of the equation

\\ \ f(t)=Acos[b(t\pm c)]+k\\ \\

The middle line =k

For our given problem

f(t) = 40cos (80t + 20)

On comparison we get k=0

Hence middle line=0

8 0
3 years ago
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