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8_murik_8 [283]
3 years ago
5

How do you add and subtract decimals as easily as you do whole numbers?

Mathematics
1 answer:
Gwar [14]3 years ago
8 0
You can also multiply the decimals by a multiple of 10 to turn them I to whole numbers. Just make sure you multiply them both by the same multiple of 10 and divide them back before you write your answer!
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Which of the following expressions represents the LCM of 91x2y and 104xy3?
GaryK [48]
The answer is {B} 728x2y3.
5 0
3 years ago
The mean length of 6 childrens' big finger is 6.7cm.
yaroslaw [1]

Answer:

New mean length of these 17 people=11.62

Step-by-step explanation:

<em>Step 1: Determine the total length of children's fingers</em>

L=l×n

where;

L=total length (cm)

l=mean length (cm)

n=number of children

replacing;

L=6.7×6=40.2 cm

The total children's fingers length=40.2 cm

<em>Step 2: Determine the total length of adults fingers</em>

total length of adults fingers=mean length of adults fingers×number of adults

where;

mean length of adults=14.3

number of adults=11

replacing;

total length of adults fingers=(14.3×11)=157.3 cm

<em>Step 3: Determine the new mean length</em>

new mean length=total length of adults and children fingers/number of adults and children

where;

total length of adults and children fingers=157.3+40.2=197.5 cm

number of adults and children=11+6=17

replacing;

new mean length=197.5/17=11.62

7 0
3 years ago
Please help!! It’s timed!!
wariber [46]

Answer:

1/2

Step-by-step explanation:

8 0
3 years ago
Rounding in the calculation of monthly interest rates is discouraged. Such rounding can lead to answers different from those pre
dimaraw [331]

Answer:

111.35

Step-by-step explanation:

effective rate: .085/12= .007083333333333333

payment=x

3000=x(\frac{1-(1+.007083333333333333)^{-30}}{.007083333333333333})\\x=111.35

8 0
2 years ago
Read 2 more answers
Round 340 to the nearest hundred
Marta_Voda [28]
The number is 300, the number is 300 hundred because numbers 1-4 you round down, numbers 5-9 you round up.
3 0
3 years ago
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