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3 years ago

Which expression is equivalent to 4a+4/2a × /2a/a+1

Mathematics

1 answer:

xeze [42]3 years ago

8 0

Answer:

It Is >

Step-by-step explanation: Try Using Your Calculator It Help's.

I Also Took The Quiz And I Got This Question Correct.

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A car uses 1 9/8 of gasoline to travel 50 3/4. how far can the car travel in miles on 1 gallon of gasoline

Elodia [21]

Answer: 30 miles

Step-by-step explanation:A typical car can travel 30 miles on just one gallon of gasoline

5 0

3 years ago

David wants to find the solutions of this system of equations: –4x – 7 = y x2 – 2x – 6 = y Which statement is true? Plz its urge

Gnoma [55]

Answer:

(-1, -3)

Step-by-step explanation:

The given equations are:

$-4x-7=y ...... (1)$

and

$x^2 - 2x - 6 = y ....... (2)$

Equating (1) and (2):

$-4x -7 =x^{2}-2x-6\\\Rightarrow x^{2}-2x-6+4x+7=0\\\Rightarrow x^{2}+2x+1=0\\\Rightarrow (x+1)^2=0\\\Rightarrow x = -1$

The two values of x are repeating in nature i.e. x = -1

So, value of $x$ is -1.

Putting value of $x$ in equation (1):

$-4 \times (-1)-7=y \\\Rightarrow y=-3$

The solution is represented as ( $x,y$ )

So, the solutions are :

(-1, -3)

4 0

3 years ago

What is the ratio between the LCM of 180 and 594 and the GCF of 180 and 594

aalyn [17]

$180:2=90\\90:2=45\\45:3=15\\15:3=5\\5:5=1\\\\180=\boxed{2}\cdot2\cdot\boxed{3}\cdot\boxed{3}\cdot5\\\\594:2=297\\297:3=99\\99:3=3\\33:3=11\\11:11=1\\\\594=\boxed{2}\cdot\boxed{3}\cdot\boxed{3}\cdot3\cdot11$

$LCM(180,\ 594)=\boxed{2}\cdot\boxed{3}\cdot\boxed{3}\cdot2\cdot3\cdot5\cdot11=5940\\\\GCF(180,\ 594)=\boxed{2}\cdot\boxed{3}\cdot\boxed{3}=18$

5 0

3 years ago

The ratio of John's money to Jimmy's money is 5:8. Jimmy spent 1/4

erma4kov [3.2K]

Answer:

a. $3600

b. 6:5

Step-by-step explanation:

Put the question into an equation:

8x - 1/4 x 8x = 5x + 450

(simplify before solving) 6x = 5x + 450

(solve) 6x-5x = 450

x = 450

This means that Jimmy had 8 x 450 $ to start with = 3600

you can check this by subtracting a quarter of 3600 from 3600 and also multiplying 450 by 5 and then obtaining their difference. You get 450!

Now ratio of new amounts:

Jimmy now has: $2700

John still has: $2250

so ratio is 2700:2250

simplify to 6:5

Hope this helps

Please mark brainiest

3 0

4 years ago

This is Josh’s work and solution for the equation x^2-6x-7=0:

sergiy2304 [10]

Answer:

This not True

Step-by-step explanation:

x-3=± 4 (mistakes)

x=3±4

x=3+4 and x=3-4

x=7 x=-1

5 0

4 years ago