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2 years ago

HOW TO DO THIS QUESTION PLEASE

Mathematics

1 answer:

Gelneren [198K]2 years ago

6 0

Answer:

Step-by-step explanation:

$\frac{2}{5}*85$

Long way

multiply the two numerators
multiply the two denominators
simplify the new fractions

$\frac{85}{1}*\frac{2}{5} \\ \\ \frac{170}{5} \\ \\ =34$

short way

-can be simplified before mulitplying

factor out common factors in the numerator and denominator

$\frac{85}{1} *\frac{2}{5} \\ \\ \frac{17}{1}*\frac{2}{1} =34$

Think 85 and 5 as nickels. You need 20 nickels to make 100. Subtract 100 by 85 to get 15. You get 3 nickels and 17 nickels. 17 is the common factor. Multiply 17 by 2 to get your answer.

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How many days will it take for a sum of $4,000 to earn $80 interest if it is deposited in a bank paying ordinary simple interest

Maksim231197 [3]

Answer:

It will take 146 days to earn an interest of $80.

Step-by-step explanation:

The simple interest formula is:

$I=\frac{P\times r\times t}{100}$

It is provided that:

I = $80

P = $4,000

r = 5% p.a.

Compute the time required as follows:

$I=\frac{P\times r\times t}{100}$

$t=\frac{I\times 100}{P\times r}$

$=\frac{80\times 100}{4000\times 5}\\\\=0.4\ \years\\\\=0.4\times 365\ days\\\\=146\ days$

Thus, it will take 146 days to earn an interest of $80.

4 0

2 years ago

Esmerelda bought a bag of jelly beans. There were 24 green jelly beans, which made up 8%, percent of all the jelly beans in the

Margarita [4]

So, let's look at the problem once again.

8%, or 8/100 of the bag were green jelly beans.

Let's see what we can do to find out a number of other jelly beans, not including the green ones.

We know that 92% of jelly-beans are not green.

92% is 11.5 times more than 8%
(92/8)

24 (or 8%) times 11.5 = 276

276 - number of jelly beans that are not green.

276 plus 24 = 300.

Answer: 300 jelly beans were in one bag.

6 0

3 years ago

Find the value of x and y from ordered pair.<br>（x+y,2x-y）=（13,2）

Katarina [22]

Answer:

x=5, y=8

Step-by-step explanation:

x+y=13

2x-y=2

add these two equations

3x=15

therefore x=5

apply this value in x+y=13

5+y=13

then y=13-5 = 8

8 0

2 years ago

Read 2 more answers

In a place 100 soldiers had enough food for 60 days .how many soldiers leave the place so that food long last for 80 days

Tresset [83]

Answer:

48 soldiers leave the place.

Step-by-step explanation:

100/60=80/x
100x=4800
x=4800/100
x=48

hope it helps.

<h2>stay safe healthy and happy.</h2>

3 0

2 years ago

M is the midpoint of segment AB. If AM = 4x – 22 and MB = 2x + 14. Solve for x

Bezzdna [24]

Answer:

x=18

Step-by-step explanation:

am=by which means you can make the equations equal each other

4x-22=2x+14

2x=36

x=18

7 0

3 years ago

HOW TO DO THIS QUESTION PLEASE ​

HOW TO DO THIS QUESTION PLEASE