MATHEMATICS HIGH SCHOOL

Which equation represents this problem?Carol's age is three more than two times Lindsay's age. Carol is 39 years old. How old is Lindsay?

Let l = Lindsay's age in years.


 



3l + 2 = 39


2l–3=39


3l–2=39


2l + 3 = 39

Answers

Answer 1
Answer:

Answer:

2l + 3 = 39


Step-by-step explanation:

the equation is 3 + 2L = C, where L is Lindsay's age and C is Carol's age

3 + 2L = 39

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What is the equation for the line that passes through (1, 1) and has a slope equal to 4?a. y = 4x – 3 b. y = 4x + 3 c. y = 3x + 4 d. y = 3x – 4 Which line is parallel to 2x + 4y = 6? a. 4x + 6y = 8 b. 3x + 6y = –7 c. 4x + 2y = –6 d. 6x + 3y = 5
2% of 105 is taxed find the value of the tax

When Legs jumps 2 times and takes 13 steps forward, he lands in the same place as when he jumps 4 times and takes 5 steps backward.• One jump equals how many steps?

Answers

Answer:

9 steps

Step-by-step explanation:

Let x be the number of jumps

and y be the number of steps

So the first case

2x+13y

Second case

4x-5y

Both cover equal distances so

2x+13y=4x-5y

\Rightarrow 2x-4x=-5y-13y

\Rightarrow 2x=18y

\Rightarrow x=9y

So, one jumps is 9 steps.

Jessica thinks of a numberShe multiplies the number by 3.
She then subtracts 7
Her answer is 5.
What number did Jessica think of?


I will mark the brainest pls​

Answers

Jessica think the number 4.

Here,

Jessica thinks of a number.

She multiplies the number by 3.

She then subtracts 7.

Her answer is 5.

We have to find the number.

What is Number system?

A system of writing to express number is called Number system.

Now,

Let the number is x.

Hence, Accordingly given conditions;

She multiplies the number by 3, then subtracts 7 get answer is 5.

We get;

3x - 7 = 5

3x = 12

x = 4

Hence, The number is 4.

learn more about the number system visit:

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Answer:

4

Step-by-step explanation:

if you multiply 4 by 3, you will get 12, and if you subtract 7, you get 5. I hope this helps ;)

Holiday Time! Crazy Time! You have to work 7 days in a row. You work 8 hours a day every single day for 7 days straight. Your wage rate is $12 per hour. How much are your gross wages?

Answers

I think its 672 because * hrs a day is 56 and when you multiply that by 12 its 672
So if you work 7 hours a day for 8 days in a row we get 56 hours, then multiply that by $12 to find your earnings which is 672.

What's the value of log2 (1/8) ?

Answers

log_aa^p=p\n------\n\nlog_2 ( (1)/(8) ) =log_28^(-1)=log_2(2^3)^(-1)=log_22^(-3)=-3\n\nAns.\ -3

The correct answer for the value log_(2)(1)/(8)   is equal to -3.

What is Logarithm?

In mathematics, Logarithms are defined a  way of expressing exponents. A logarithm is defined as the power to which a number must be raised to get some other values.

The expression for logarithm of a number is written as ㏒ₓb = y.

Properties of Logarithm:

log_(x) (x^n) = n

The value of log_(2)(1)/(8) can be calculated by recognizing that (1)/(8) is equal to 2 raised to the power of -3.

log_(2)(1)/(8)   = log_(2)(2^(-3))

From the property of logarithm:

log_(2)(2^(-3))

= -3

The value of  log_(2)(1)/(8) is -3.

Learn more about Logarithm here:

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10 gallons of gasoline cost $30. The cost of gallons per gasoline is

Answers

Answer:

Step-by-step explanation:

$30/10  =  $3 per gallon

The cost to rent a construction crane is $750 per day plus $250 per hour of use. What is the maximum number of hours the crane can be used each day if the rental cost is not exceed $2500 per day ? Write amd solve the inequality

Answers

Let's use x to represent the number of hours since we don't know that.

750+250x<2500
Subtract 750 from both sides.
250x<1750
Divide both sides by 250.
x<7
The most hours that they can do is 7, or it can be less. 

Answer:

x = 7

Step-by-step explanation:

x= number of hours

"cost is not exceed $2500 per day"

not exceed = less than

750+250x < 2500

250x< 2500-750

250x < 1750

x < 1750/250

x<7

7 hours
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