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Marta_Voda [28]
3 years ago
7

Who wants points a thanks 5 stars and be marked as the brainliest

Mathematics
1 answer:
-Dominant- [34]3 years ago
4 0

Answer:

4 * 10 ^-5

Step-by-step explanation:

To find the area multiply length times width

A = .005 * 8 * 10^ -3

   = .04 * 10 ^-3

But this is not scientific notation

We need to move the decimal 2 places to the left

This means subtract 2 from the exponent

4 * 10 ^-5

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A restaurant offers a choice of 4 salads, 9 main courses, and 4 desserts. How many possible 3-course meals are there
Sergeu [11.5K]

Answer:

144

Step-by-step explanation:

Multiply each option together 9X4X4=144

8 0
3 years ago
Jill has a photograph that is 4 inches wide by 6 inches high. If she enlarges it so that the width is 12
Nadya [2.5K]

Answer:

The inches in height will be 18 inches.

Step-by-step explanation:

Okay so we know that the original width is 4 inches and she enlarged that to 12 inches

So what we first have to do is find out how much did the photograph "grow" per se. To find this we have to divide 12 by 4. 12 divided by 4 = 3.

So, the width of the photograph grew "times 3" inches

Now whatever you do to the width you have to do to the height. In this case, what is "3 times" 6 (which is the height). 3 times 6 = 18 inches

So in simpler words 12 divided 4 = 3 x 6 = 18 inches

The inches in height will be 18 inches.

Jill has a square with a width of 12 inches, and a height of 18 inches.

Have a wonderful day!

5 0
2 years ago
Teresa needs to save $25.50 to go to the movies this weekend. She currently has $3. If Teresa makes $7.50 an hour babysitting, h
seraphim [82]

Answer:she need to do at least 3 hours of babysitting.

Step-by-step explanation:

you subtract how much she already has, 3$ from 25.50 and then you divide how much she makes in one hour of babysitting by how much money she needs so 22.50/7.50=3

3 0
3 years ago
Read 2 more answers
Robert can type 360 words in 3 minutes. Jocelyn can type 525 words in 5 minutes.
abruzzese [7]

Step-by-step explanation:

Robert: 360/ 6 = 62 words per minute

Jocelyn: 525/ 5= 58 words per minute

Jocelyn types faster. I haven't done 5th grade math in so long... lol if wrong please correct me..

6 0
3 years ago
Initially, Greg has a total of 60 DVDs and CDs in his collection. He then sold 1/8 of his CDs and 1/2 of his DVDs. If the number
poizon [28]

Answer:

10 DVD's were sold.

Step-by-step explanation:

c = number of CD's

d = number of DVD's

so we know:

c + d = 60

2*c/8 = d/2

this can be solved:

d = 60 - c

2c / 8 = (60-c)/2

4*(2c/8) = 4*(60-c)/2    [multiply by 4]

c = 120 - 2c

3c = 120

c = 40

d = 60-40 = 20

So Greg had 40 CD's and 20 DVD's. He sold half of his DVD's, i.e., 20/2=10 and 1/8 of his CD, i.e., 40/8 = 5

5 0
3 years ago
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