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Tanzania [10]
3 years ago
8

A miner for gold digs at a constant rate. They were able to dig -90 feet in 6 hours. How long have they been digging if they dug

-225 feet?
Mathematics
1 answer:
Pachacha [2.7K]3 years ago
7 0

Answer:

he will dig for 15 hours

Step-by-step explanation:

if a miner digs —90 feets in 6 hours

then he will dig –225 feet in x hours

—225 feet x 6 hours /—90 feet = 15 hours

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-12+x-34=60<br> If you like this question please rate this five stars!<br> Thank you!
natulia [17]

Answer:

x=106

Step-by-step explanation:

Let's solve your equation step-by-step.

−12+x−34=60

Step 1: Simplify both sides of the equation.

−12+x−34=60

−12+x+−34=60

(x)+(−12+−34)=60(Combine Like Terms)

x+−46=60

x−46=60

Step 2: Add 46 to both sides.

x−46+46=60+46

x=106

8 0
3 years ago
Mrs Vargas is 4 years less than 4times her daughter anas age. Mrs Vargas son Leo is 3years more than two times Ana's age.If Ana
shusha [124]

Answer: 2a - 7

<u>Step-by-step explanation:</u>

Ana: a

Mrs Vargas: 4a - 4

Leo: 2a + 3


 Mrs Vargas  -   Leo

=   (4a - 4)      -  (2a + 3)

=    4a - 4       -2a - 3

=    2a - 7


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3 years ago
Use the quadratic formula to solve for x. <br> 5x²-3x=3<br> Round to the nearest 100th
Semenov [28]

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Step-by-step explanation:

4 0
3 years ago
One number exceeds another by 15. the sum of the numbers is 69. what are the numbers
alex41 [277]

Hey there!!

Let us take the first number as ' x '

According to the question

The second number exceeds the first number by 15

hence, the second number = x+15

The sum of both the numbers = 69

which means

x + x + 15 = 69

2x+15 = 69

Subtracting by 15 on both sides

2x + 15 - 15 = 69 - 15

2x = 54

dividing by  2 on both sides

x = 27

first number = 27

second number = 27 + 15

= 42

Hope my answer helps!

7 0
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ZanzabumX [31]

Answer:

Simplified: -4a²b²+18a³-2b³

3a(6a²-4ab²)+8a²b²-2b³

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combine like terms (-12a²b² and 8a²b²)

-4a²b²+18a³-2b³

Hope this helps

7 0
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