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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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A cash register contains only five dollar and ten dollar bills. It contains twice as many five's as ten's and the total amount o
Effectus [21]

Answer:

31

Step-by-step explanation:

Let number of ten dollar bills be x .

So, number of five dollar bills = 2 x

Total amount of money in the cash register = 620 dollars

Amount of money in total cash as a result of  five dollar bills = 2 x × 5 = 10 x  dollars

Amount of money in total cash as a result of  ten dollar bills =  x × 10 = 10 x dollars

According to question ,

Total amount of money in the cash register = Amount of money in total cash as a result of  five dollar bills +  Amount of money in total cash as a result of  ten dollar bills

⇒ 620 = 10 x + 10 x

⇒ 620 = 20 x

⇒ x = \frac{620}{20} = 31

So, number of ten dollar bills = 31

3 0
3 years ago
Fill in the table with the output values that represent the function y=4x+8 .
a_sh-v [17]
<span>y=4x+8 is a linear function with slope 4 and y-intercept 8.

If x=0, y=8; the y-intercept is (0,8).
If x=1, y=4(1)+8 = 12

If x=5, y=28

and so on</span>
7 0
3 years ago
Which expression is equivalent to 1/3y?
Fittoniya [83]

Equivalent expression

y/3   = 1/3 * y

4 0
3 years ago
Read 2 more answers
How to classify 17/10
storchak [24]

Answer:

rational

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2/9 of the members are boys in a community service club. if there are 95 more girls than boys, how many girls are there in club?
Talja [164]

Answer:

There are 171 members in the club

Number of boys = 38

Number of girls = 133

Step-by-step explanation:

Let

x = total members of the club

Boys = 2/9x

if there are 95 more girls than boys

Girls = 2/9x + 95

how many girls are there in club?

Total members in the club = boys + girls

x = 2/9x + 2/9x + 95

x = 2+2/9x + 95

x = 4/9x + 95

x - 4/9x = 95

9x-4x/9 = 95

5/9x = 95

Divide both sides by 5/9

x = 95 ÷ 5/9

= 95 × 9/5

= 855/5

= 171

boys = 2/9x

= 2/9 * 171

= 342 / 9

= 38

Girls = 2/9x + 95

= 38 + 95

= 133

Total = 38 + 133

= 171

There are 171 members in the club

Number of boys = 38

Number of girls = 133

5 0
3 years ago
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