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4 years ago

Write an expression that shows how to multiply 4×362 using place value and expanded form

1 answer:

6 0

Separate this into, instead of 4*362, 4*300+4*60+4*2, all of which are much easier to solve than the former problem.
4*300=1200
4*60=240
4*2=8
Add these together now!
1200+240+8=1448

Hope this helps!

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2. Peter, Jeff, and John, each perform subtraction incorrectly as follows:

grandymaker [24]

Answer:

peter: subtraction mistake at unit place . wrote 6 in place of 9

Jeff: subtraction mistake at tens place: wrote 4 while the correct digit is 3

peter: He has written 3 at unit place while correct digit is 2

John: he has carried 1 twice from 5 at hundred place and then subtracted 2 from it which gives value 1 at hundred place.

Step-by-step explanation:

we have to subtract 503 from 269

4 10 13

503

-269

____

234

Solution

since 3 is less than 9 , we take a carry from 0 but 0 cannot be carries so we take 1 carry from 5\

thus

5 becomes 4, 0 becomes 10,

now 10 can be give 1 carry to 3 at unit place, so 3 becomes 13

now 9 is subtracted from 13

13-4 = 9

this is the mistake of Peter

he has written 6 at unit place which should be

peter: subtraction mistake at unit place . wrote 6 in place of 9

____________________________________________________

since , 1 is carried from 10 at tens place, 9 is left at tens place

so we know subtract 6 from 9 at tens place

9-6 = 3

Here mistake is done by Jeff

Jeff: subtraction mistake at tens place: wrote 4 while the correct digit is 3

________________________________________________

at hundred place,

one is taken from 5 , hence 4 is left at hundred place

we have to subtract 2 from 4

4-2 = 2

hence,

Here, mistake done by both both Peter and jeff

peter: He has written 3 at unit place while correct digit is 2

John: he has carried 1 twice from 5 at hundred place and then subtracted 2 from it which gives value 1 at hundred place.

4 0

4 years ago

A boat can travel 40mph in still water. If it travels 126 miles with the current in the same length of time it travels 114 miles

Elena-2011 [213]

Answer:

rate of the current = 2 mph

Step-by-step explanation:

d = rt

Let c = rate of the current

Rate going downstream = c + 40

Time going downstream = 126/(40 + c)

Rate going up stream = 40 - c

Time going upstream = 114/(40 - c)

Since the times are equal, then

126/(40 + c) = 114/(40 - c)

126(40 - c) = 114(40 + c)

5040 - 126c = 4560 + 114c

240c = 480

c = 2 mph

8 0

3 years ago

The period of 2 sin x cos x is A. 4 pi 2 B. 2 pi C. 4 pi D. pi

MatroZZZ [7]

D is the correct answer. Hope this helps!!!!

3 0

4 years ago

PLEASE HELP What appears to be the range of the part of the exponential function graphed?

just olya [345]

Answer:

A) Variable "x" is less than it equal to 1 because your domain can’t have [h(x)] because that’s your function and would be your range but in this case it’s your domain and your domain or else known as the variable "x" coordinate would have to be the number on the x axis that your line starts, your line begins on line 1 on the x axis which would be your domain

Hope this helps!

3 0

3 years ago

What are the steps to solve this problem C=6/(6+12)*180

Talja [164]

C = 6/(6+ 12)*180 We solve the bracket first.

C = 6/(18)*180 From here we can solve any first.

= 1/3 * 180

= 60

5 0

4 years ago