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77julia77 [94]
2 years ago
11

6. Saritha can read 62 pages of a book in one day. How many pages can she read in 27 days? Estimate the number of pages and days

to nearest tens.
7. 975 toffees are to be distributed among 23 children. Estimate the numbers of toffees that each child will get in nearest tens.
Mathematics
1 answer:
Elena-2011 [213]2 years ago
3 0

Answer:

6. 1800

7. 49

Step-by-step explanation:

estimation is to round to easy numbers first and then multiply or divide, which can then be done easily in our heads.

so, for 6. I rounded to 60 pages per day and 30 total days (the nearest tens). one factor of the multiplication I rounded a little bit down, the other one a little bit up. therefore the total result should still be near that.

for 7 I did a similar thing. I rounded 975 to 980 and 23 to 20. just now we need to divide.

980 / 20 = 98/2 = 49

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5 0
2 years ago
Which expression is equal to the expression below?
Debora [2.8K]

Answer:

48

Step-by-step explanation:

(2*6)4

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48

Hoped it helped :)

4 0
2 years ago
NEED ANSWERS CORRECT ONES NEED NOW WILL MARK BRAINLIEST...
nadya68 [22]

(a) There are 1/4 cups of flour per serving

<u>Work:</u> 1.5/6=1/4

(b) There are aprox. .18 cups of sugar per serving.

<u>Work:</u> 9/12+4/12=13/12 n then divide 13/12 by 6

(c) You need 2 1/4 cups of flour to make 9 servings

<u>Work:</u> 1.5/2=.75        1.5+.75=2.25=2 1/4 cups

(d) Someone would need to know the amount of sugar per serving to make the recipe accurate.

<em>Question 2</em>

(a) You're account is at $10 dollars

<u>Work:</u> $5x5 (days)=$25. add 25 to -15 and you have $10 dollars in you're account.

(b) 5 days.

<u>Work:</u> 10/2=5    10-10=$0


6 0
2 years ago
(-5q^2 + 6q + 7) - (-q^2 + 4q)
beks73 [17]

Steps to solve:

(-5q^2 + 6q + 7) - (-q^2 + 4q)

~Distribute the left side

-5q^2 + 6q + 7 + q^2 - 4q

~Combine like terms

-4q^2 + 2q + 7

Best of Luck!

5 0
3 years ago
Read 2 more answers
11+(8-x)²-20 evaluate the expression for x=3
Oksana_A [137]
46 because 8-3 equals 5 then 5 times 5 equals 25 to then add 11 to finally subtract 66-20 which equals 46
6 0
3 years ago
Read 2 more answers
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