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timofeeve [1]
4 years ago
10

Explain how to use a pattern to find the product of a power of 10 and a decimal? Please help

Mathematics
1 answer:
ArbitrLikvidat [17]4 years ago
5 0

: Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 1
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Marie 2,480 windows Marie washed 4 times as many windows as Elizabeth Elizabeth washed the same number of windows each day over
vlada-n [284]

Answer:

Elizabeth washes 99 windows each day.

Step-by-step explanation:

Given:

Total number of windows (N) = 2480

Marie washes windows = 4 times Elizabeth washes.

Elizabeth washes same number of windows for 5 days.

Let the number of windows washed by Elizabeth each day = 'x'.

Therefore, over the 5 days, the windows washed by Elizabeth = 5x

Now, as per question:

Marie washes windows = 4 times Elizabeth washes.

So, number of windows washed by Marie = 4(5x)=20x

Now, total number of windows = Windows washed by Marie + Windows washed by Elizabeth

So,

2480=20x+5x\\\\2480=25x\\\\x=\frac{2480}{25}\approx99

Therefore, Elizabeth washes 99 windows each day.

7 0
3 years ago
Work out 4/5 - 3/20 - 2/10
DedPeter [7]

Answer:

9/20

Step-by-step explanation:

LCM of 5, 20, and 10 = 20

4/5

= 4/5 x 4/4

= ( 4 x 4 )/( 5 x 4 )

= 16/20

2/10

= ( 2/10 ) x ( 2/2 )

= ( 2 x 2 )/( 10 x 2 )

= 4/20

4/5 - 3/20 - 2/10

= 16/20 - 3/20 - 4/20

= ( 16 - 3 - 4 )/20

= ( 16 - 7 )/20

= 9/20

5 0
2 years ago
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HELP I DONT GET THIS! <br> 10 POINTS!!! MARK BRAINLIEST!
Arisa [49]

Answer:

scale factor is 1/7

Step-by-step explanation:

I am smart

7 0
3 years ago
Read 2 more answers
If f(x)=x+8 and g(x)=-4x-3 find (f+g)(x)
nydimaria [60]

Answer:

for this case we have the following functions:

f (x) = x + 8

g (x) = -4x - 3

Subtracting the functions we have:

(f - g) (x) = f (x) - g (x)

(f - g) (x) = (x + 8) - (-4x - 3)

Rewriting:

(f - g) (x) = x + 8 + 4x + 3

(f - g) (x) = 5x + 11

Answer:

D. (f - g) (x) = 5x + 11

7 0
3 years ago
Right answer gets brainlist
RUDIKE [14]

Answer:

1244

Step-by-step explanation:

real answer is 1244.07

8 0
3 years ago
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