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xenn [34]
3 years ago
13

Please help with math

Mathematics
2 answers:
irina [24]3 years ago
7 0

Answer:A

-13/21

Step-by-step explanation:

Ilia_Sergeevich [38]3 years ago
3 0

Answer: D

Step-by-step explanation:

it's an obvious answer

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18 is 45% of what number? ____<br> Please help me I can't solve this
Alexxx [7]

18/x = 45/100

cross multiply

18/x * 45/100

45x =1800

divide both sides by 45

45x/45 =1800/45

x=40

18 is 45% of 40


6 0
3 years ago
Choose your three favorite ice cream flavors. If you want a cone with two dips, how many different combinations of flavors could
sp2606 [1]

Answer:

6

Step-by-step explanation:

3 x 2

6 0
3 years ago
Here is a retangle ABCD the length of the rectangle is incresed by 10% the width increased by 5%
gladu [14]

Answer:

the ans:

Step-by-step explanation:

The percentage increase in the perimeter of the rectangle is 6.67 %.

Percentage :

A percentage is a number or ratio that can be expressed as a fraction of 100.

The length of the rectangle is increased by 10% ,

         10%

If initial length of rectangle is 10 then new length of rectangle will be 11 unit.

            5 %

If initial width of rectangle is 20 then new width of rectangle will be 21 unit.

Initial perimeter  

New perimeter

the percentage increase in the perimeter of the rectangle is,

             

4 0
3 years ago
What percent of 4c in each expression? <br> 0.2c
Ymorist [56]

The percentage of 4c in the expression 0.2c is 2000%

<h3>How to determine the percentage of 4c?</h3>

The expression is given as:

0.2c

The percentage of 4c is then calculated as:

4c/0.2c

Evaluate the quotient

20

Express as percentage

2000%

Hence, the percentage of 4c in 0.2c is 2000%

Read more about percentages at:

brainly.com/question/843074

#SPJ1

7 0
2 years ago
8:54 a.m.
dimaraw [331]
Hello,

The two lights flash at the same time every 18 min
at 8:00 h=480 min =480+0*36
at 8:36 h=516 min =480+1*36
...
54 is not divisible by 36
60+12=72 = 2*36 yes
60+24=84 not
120+24=4*36 yes
180+18=198 not

So 2 times are correct 9:12 and 10:24
Answer G


 

5 0
3 years ago
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