MATHEMATICS MIDDLE SCHOOL

How do you write 15/1000in scientific notation

Answers

Answer 1

Answer:

Answer: 15 * 10^-3

Step-by-step explanation:

Divide 15/1000

= 0.015

=15 * 10^-3

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Stacey worked on her garden for 4 3/4 hours. Josh worked on his garden 2/3 times as long as Stacey. Vicki worked on her garden 1 3/8 times as long as Stacey. Select all statements that are true A. Stacey worked longer on her garden than Josh worked on his garden.B.Stacey spent less time working on her garden than Vicki spent on her garden.C. Josh worked longer than Vicki worked on her garden.D. Vicki worked longer on her garden than Stacey & Josh combined.
How many gallons do 8 quarts equal
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Test points for the intervals are shown. Select the test points that make the inequality true. x = –15 x = 0 x = 30
How do you solve the answer to this-6(-3)(-2)

The teacher asked 4 students to measure 4 different objects. The table shown represents their measurements. Which student had the largest percent error?

Answers

Answer:

Student #4

Step-by-step explanation:

The formula for percentage error is given below. We will use this formula for all the four students and figure out whose error is the most.

Percentage Error = $|(MeasuredValue-ActualValue)/(ActualValue)|*100$

For student 1:

% Error = $|(49-50)/(50)|*100\n=|-0.02|*100\n=(0.02)(100)\n=2$

For student 2:

% Error = $|(25.5-25)/(25)|*100\n=|0.02|*100\n=(0.02)(100)\n=2$

For student 3:

% Error = $|(7.5-8)/(8)|*100\n=|-0.0625|*100\n=(0.0625)(100)\n=6.25$

For student 4:

% Error = $|(2.1-1.6)/(1.6)|*100\n=|0.3125|*100\n=(0.3125)(100)\n=31.25$

Clearly, 31.25% error of student #4 is the highest.

the correct answer is student four because it was off the most

Margaret is treating her best friend to a birthday dinner. Before ordering, Margaret wants to have an idea of the final bill. The order includes one appetizer for $6.50, two main courses for $15.75 each, two drinks for $2.25 each, and two desserts for $7.25 each. Round each amount up to the nearest whole dollar to find an overestimate of the total cost.

Answers

Answer:

$31

Step-by-step explanation:

$6.50 = $6

$15.75 = $16

$2.25 = $2

$7.25 = $7

$6 + $16 + $2 + $7 = $31

The diameter of a circle is 16 feet.What is the radius of the circle?

4 ft

8 ft

48 ft

32 ft

Answers

thecradius is 8 feet

Ink cartridges weigh 1/8 pound. the total weight of the cartridges in a box is 4 1/2 pounds. how many cartridges does the box contain? show your work and explain why you chose the operation you did.

Answers

Answer: There are 36 cartridges that box contain.

Step-by-step explanation:

Since we have given that

Weight of ink cartridges = $(1)/(8)$ pounds

Total weight of the cartridges in a box = $4(1)/(2)=(9)/(2)\ pounds$

so, Number of cartridges that box contain is given by

$(9)/(2)/ (1)/(8)\n\n=(9)/(2)* (8)/(1)\n\n=9* 4\n\n=36$

Hence, there are 36 cartridges that box contain.

1/8x=4.5x (x is the number of cartridges)
Multiply both sides by 8
x=36
The box contains 36 cartridges.

Felipe bought 3/4 of a pound of American cheese at the deli. She used 1/2 of the cheese to make sandwiches. How much cheese did she use?

Answers

She used 3/8 of the cheese. Since she used 1/2 of 3/4, you multiply 3/4 times 1/2. If you multiply straight across, the answer should be 3/8. If you need further explanation, just ask! Hope this helps! =D :D

The answer is 2/4 because 2 is half of 4.

Please help solve this problem 2x < 14A: x < 12
B: x > 7
C: x > 12
D:x < 7