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2 years ago

5/7x =5 Pls pls pls someone help me on this I tried so many times and I can’t figure this out.

Mathematics

2 answers:

Talja [164]2 years ago

8 0

Step-by-step explanation:

$\frac{5}{7} x = 5 \\ x = \frac{5 \times 7}{5} \\ x = 7$

value of x is 7

hope this answer helps you dear....take care!

Scrat [10]2 years ago

8 0

Answer:

x=7

Step-by-step explanation:

hope this help .....reduce the numbers

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2 years ago

william is thinking of two numbers both numbers are square numbers greater than 1 the sum of numbers is 100 write down two numbe

zheka24 [161]

Answer:

Step-by-step explanation:

At first,

Let start writing the squares of number 0 to 10,

0²=0

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According to your question,

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2 years ago

If john makes a contribution to a charity fund at school, the average contribution size will increase by 50% reaching $75 per pe

Sonja [21]

Answer:

$Z= 75*6 -250=200$

So then the correct answer is B. $200.

Step-by-step explanation:

Notation

Let X be the average contribution size before John makes his contribution.

Let Y be the total contribution size before John makes his contribution.

Let Z be John's contribution.

We know that for this case $ 75 represent the original average amount before the contribution with 50% increase so we can set up the following equation in order to find the original average amount

$1.5 X = 75$

And solvong for X we got:

$X = \frac{75}{1.5}= 50$

Now we can find the total contribution before the donation with the following proportion:

$\frac{50}{1}= \frac{Y}{5}$

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And then with the formula of average taking in count the 6 values we can find the size of donation Z like this:

$\frac{Y+Z}{6}= 75$

$\frac{250+Z}{6}= 75$

$Z= 75*6 -250=200$

So then the correct answer is B. $200.

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2 years ago