Are the equations a/b=c/d and ad=bc equivalent? Explain.

Answers

Answer 1
Answer:

Step-by-step explanation:

The relation given is a/b = c/d, if we cross multiply we will get ad = bc which we got from the first relation only. Let's take an example and assign a,b,c,d some numbers.

We know, 1/2 = 3/6 (equivalent fractions). Then a = 1, b = 2, c = 3, d = 6. Now put these values into the 2nd relation,

  • ad = 1 * 6 = 6
  • bc = 2 * 3 = 6

ad = bc relation is satisfied. Hence the equations a/b = c/d and ad = bc equivalent.


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What type of line would you mark the center of a two-way road

Answers

There are 2 types of line that you can mark the center of a two-way road.

1) passing permitted - it is a broken line marking found in the center of the two-way road. It means that passing other cars is permitted.

2) no passing zones and edge line - it is composed of a combination of solid yellow line, single broken-yellow line, double solid yellow line. It means overtaking or passing is never permitted.

Solve the formula for converting temperature from degrees celsius to degrees fahrenheit for c? F=9/5C+32

Answers

The expression in terms of F is C = 5(F - 32)/9 if the relationship between F and C is F = (9/5)C + 32.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The relationship between F and C is:

F = (9/5)C + 32

To convert temperature from degrees Celsius to degrees Fahrenheit for c:

Make the subject as C:

(9/5)C = F - 32

The linear expression can be defined as the relation between two variables, if we plot the graph of the linear expression we will get a straight line.

If in the linear expression, one variable is present, then the expression is known as the linear expression in one variable.

9C = 5(F - 32)

C = 5(F - 32)/9

Thus, the expression in terms of F is C = 5(F - 32)/9 if the relationship between F and C is F = (9/5)C + 32.

Learn more about the expression here:

brainly.com/question/14083225

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What is 10 3/4 plus 11 3/8

Answers

18 7/8 is the answer when you add them

Answer:

18 7/8 is the answer when you add them

Step-by-step explanation:

Which is the best approximation of the perimeter of a right isosceles triangle if it's hypotenuse is 12 units long

Answers

ok so isocileese
that means that the 2 legs are eual

a^2+b^2=c^2
a=b
c=12
2a^2=12^2
2a^2=144
divide 2
a^2=72
a=6√2

perimiter=a+b+c
a=b
P=6√2+6√2+12
P=12√2+12
P=aprox 28.97 units

How do I solve for x in the equation 5^x=3125? Also in 5^x=1/125, 9^x=243, 4^x=1/32, and 3*2^x=96?

Answers

remember
if x^m=x^n and x=x, m=n
also
x^-m=1/(x^m)
(x^m)^n=x^(mn)

try to match bases

5^x=3125
5^x=5^5
x=5

5^x=1/125
1/125=1/(5^3)=5^-3
5^x=5^-3
x=-3


9^x=234
3^(2x)=3^5
2x=5
x=2.5


4^x=1/32
1/32=1/(2^5)=2^-5
2^(2x)=2^-5
2x=-5
x=-2.5


3*2^x=96
first divide both sides by 3
2^x=32
2^x=2^5
x=5




5^x=3125
x=5

5^x=1/125
x=-3


9^x=234
x=2.5

4^x=1/32
x=-2.5

3*2^x=96
x=5

5^x=1/125

Take log of both sides

log(5^x)=log(1/125)

x*(log(5))= log(1/125)

x= log(1/125)/ log(25)

x=-3


9^x= 243

Take log of both sides


log(9^x)= log(243)

x*(log(9))= log(243)

x= log(243)/ log(9)

x= 2.5


4^x= 1/32

Take log of

log(4^x)=log(1/32)

x*(log(4))=log(1/32)

x= log(1/32)/log(4)

x= -2.5


3*2^x=96

Divide both sides by 3 so we can make it more simply

3(2^x)/3= 96/3

2^x= 32

Take log of

log(2^X)=log(32)

x(log(2))= log(32)

x= log(32)/log(2)

x=5


As you can see, I only used a simple way for all of them.


I hope that's help:0

Find the cost for renting a car for six days at $24.75 per day and 13¢ per mile, if the car is driven 1,083 miles.A. $148.50
B. $289.29
C. $140.79
D. $278.29

Answers

Answer:

Step-by-step explanation:

13per mile×1080 mile =140.79

Answer:

B

Step-by-step explanation:

if you at $24.74 * 6 = 148.5

then you take 1083 * .13 = 140.79

then add the two number to get 289.29