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kondaur [170]
3 years ago
9

If y varies directly as x, and y = 75 when X = 25. Find x when y=21 PLEASE HELP ASAP

Mathematics
1 answer:
user100 [1]3 years ago
6 0
I think x would equal 7 because when y=75 and x=25, x is one third of y so one third of 21 is 7
You might be interested in
/_A and /_B are complementary angles.<br> Given that m /_A = 23 degrees, find m /_B​
OverLord2011 [107]

Answer:

67

Step-by-step explanation:

When two angles are complimentary, it means that, together, they make a 90 degree angle.

/_A + /_B must equal 90°

6 0
3 years ago
Help me please if you can
zheka24 [161]

Answer:

perimeter = 1 3/4

Step-by-step explanation:

1. 3/4 x 2 because there are two sides with the fraction 3/4. 3/4 x 2 is 1 1/2

2. 1/8 x 2 because there are two sides with the fraction 1/8. 1/8 x 2 is 1/4

3. 1 1/2 + 1/4 = <u>1 3/4</u>

8 0
2 years ago
Write the equivalent logarithmic equation to 10^a = x+b
MA_775_DIABLO [31]

Answer:

The answer to your question is   log₁₀ x + b = a        

Step-by-step explanation:

General formula

                 Logarithmic function                Exponential function

                           log ₐ b = c                                  b^{c} = a

a = antilogaritm                                               c = exponent

b = base                                                          b = base

c = logaritm                                                     a = power

In your problem

10 = base

a = exponent

x + b = power

Exponential function              log₁₀ x + b = a                            

4 0
3 years ago
Here is the right photo please help i need this before july 1st thank you
Reil [10]

Answer:

i hope this helps

Step-by-step explanation:

2x^{2} -16=0

+16        +16

2x^{2} =16

÷2    ÷2

x^{2} = 8

\sqrt{x^{2} }= \sqrt{8}

x= \sqrt{8}

-5x^{2} +9=0

-9          -9

-5x^{2}=-9

÷-5   ÷-5

x^{2} =1.8

\sqrt{x^{2} }= \sqrt{1.8}

x= \sqrt{1.8}

6x^{2} -15=27

+15        +15

6x^{2} =42

÷6   ÷6

x^{2} =7

\sqrt{x^{2} }= \sqrt{7}

x=\sqrt{7}

4 0
4 years ago
Find the value of x. 1/2 - 15 = 2/5x - 7​
Dmitrij [34]

Answer:

the answer is 80

Step-by-step explanation:

hope this helps

can i get braineist pls

6 0
3 years ago
Read 2 more answers
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