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bekas [8.4K]
3 years ago
9

PLEASE HELP ME TO SoLVE THIS Questions​

Mathematics
1 answer:
mars1129 [50]3 years ago
7 0
This is the answer key lol, I was boutha do that math but I was like wait hold up ima js search the paper up. Hope this helps lol

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3 less than four-sevenths of x is y
Xelga [282]

y = 4/7x - 3

hope this helps

8 0
2 years ago
Read 2 more answers
Find the exact solution to the equation. 5^(6-2x) = 25
STatiana [176]

Answer:

x = 2

Step-by-step explanation:

Note that 25 = 5² , then

5^{(6-2x)} = 5²

Since the bases on both sides are 5 then equate the exponents

6 - 2x = 2 ( subtract 6 from both sides )

- 2x = - 4 ( divide both sides by - 2 )

x = 2

3 0
2 years ago
The sum of a number and its reciprocal is 5/2 Find the number and its reciprocal.
sergiy2304 [10]

Answer:

Step-by-step explanation:

Let the number be 'x'

Reciprocal = \frac{1}{x}

x+\frac{1}{x}=\frac{5}{2}\\\\\frac{x*x}{1*x}+\frac{1}{x}=\frac{5}{2}\\\\\frac{x^{2}+1}{x}=\frac{5}{2}

Cross multiply

(x² + 1) *2 = 5*x

2x² + 2 = 5x

2x² - 5x + 2 =0

Factorize the equation,

Sum = -5

Product = 4

Factors = -1 , -4

2x² - x - 4x + 2 = 0

x(2x - 1) - 2(2x - 1) = 0

(2x -1 )(x - 2) = 0

2x - 1 = 0               ; x -2 = 0

    2x =1                ; x = 2

       x = 1/2

Number = 2 , and its reciprocal = 1/2

6 0
3 years ago
Can someone help I need this asap
balu736 [363]

Answer:

Step-by-step explanation:

Total number of students =100

Number who bought pop corn = 62

Number who bought drinks = 47

Number who bought both =38

Hence number who did not purchase anything = 100-(62+47-38)

=29

Prob that students buys a drink = 47/100 = 0.47

PROB THAT THE  student buys a drink/he purchsaed pop corn

= Number for both/number of pop corn

=38/62 =0.613

P(buying pop corn) = 0.62 and P(drink) = 0.47

Product of these = 0.62*0.37=0.2356

Thus we find product is not equal to Prob of purchsing both

Hence cannot be independent

4 0
3 years ago
PLZZZ HELP I'LL GIVR U A MEDAL N FAN U
disa [49]
The first option is correct I did this before hope this helps
6 0
3 years ago
Read 2 more answers
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