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Whitepunk [10]
3 years ago
9

The students at view side elementary school had a read a thon the teachers kept track of how many books the students in each gra

de level read estimate the total number of books the students read round each number to the nearest hundred to help you find your answer
Kindergarten 247, first grade 385 , second grade 1347 and third grade 1549
Mathematics
1 answer:
inn [45]3 years ago
4 0

Answer:

Estimate = 3400 books

Step-by-step explanation:

Given that:

Books read by students.

Kindergarten 247

First grade 385

Second grade  1347

Third grade 1549

We have to round the each number to nearest hundred.

247 rounded to the nearest hundred is 200.

385 rounded is 400

1347 rounded is 1300

1549 rounded is 1500

Total = 200 + 400 + 1300 + 1500 = 3400

Hence,

Estimate = 3400 books

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Charra [1.4K]

Answer:

35.5

Step-by-step explanation:

1 5/2 + (8*4)= 35.5

(8*4)= 32

32+1 5/2

1 5/2=3 1/2

32+3 1/3

35.5 or 35 1/2

7 0
3 years ago
A cat spends about 7 out of 10 hours sleeping about what percent of a cat's day. Is it spending sleeping?
Greeley [361]
The cat spends 70% if it’s day sleeping.
7 0
4 years ago
Tao wants to check that the expression 3(4x – 6) simplifies to 12x – 18. What is the value when 2 is substituted for x into both
timurjin [86]

Answer:

6

Step-by-step explanation:

3( 4x - 6)

Let x =2

3( 4*2 -6)

3(8-6)

3*2

6

Check

12x-18

12*2 -18

24-18

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4 0
4 years ago
A recipe calls for 1/4 cup of brown sugar for every 2/3 cup of white sugar. How many cups of brown sugar is required for every c
sammy [17]

The right answer is Option B: 3/8

Step-by-step explanation:

Given,

1/4 cup of brown sugar is for 2/3 cup of white sugar.

Ratio of brown sugar to white sugar = \frac{1}{4}:\frac{2}{3}

Let,

x be the brown sugar required for 1 cup of white sugar.

Ratio of brown sugar to white sugar = x:1

Using proportion;

Ratio of brown sugar to white sugar :: Ratio of brown sugar to white sugar

\frac{1}{4}:\frac{2}{3}::x:1

Product of mean = Product of extreme

\frac{2}{3}*x=\frac{1}{4}*1\\\frac{2}{3}x=\frac{1}{4}

Multiplying both sides by 3/2

\frac{3}{2}*\frac{2}{3}x=\frac{1}{4}*\frac{3}{2}\\x=\frac{3}{8}

3/8 cups of brown sugar is required for 1 cup of white sugar.

The right answer is Option B: 3/8

Keywords: ratio, proportion

Learn more about ratios at:

  • brainly.com/question/4163549
  • brainly.com/question/4168505

#LearnwithBrainly

3 0
3 years ago
Can someone help me with numbers 18 and 20? thank you!
alekssr [168]

Answer:

18. x= 15

19. x = 32.5

20. 82.097

Step-by-step explanation:

because any trianglw with 65 degrees the other abgle will be equal making the side equal as well

180-115= you know

6 0
4 years ago
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