Evaluate hj-h if h=4 and j=6

Answers

Answer 1

Answer:

The value of the given expression is 20.

What is an expression?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

Given that, h=4 and j=6 we need to find hj-h

hj-h

put h=4 and j=6

4 x 6 - 4

= 24 - 4

= 20

Hence, the required value is 20.

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Answer 2

Answer: h=4
j=6
hj-h
(4)(6)-(4)
(24)-(4)
20

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PLEASE HELP IM FAILING MATH CUZ,I TRUSTED PPL ON HERE THAT WERE WRONG

Solve (work please)

-2a + 1.6 = 5.6

Answers

-1.6 to both sides

-2a=4

Divide both sides by -2

a= -2

Hope this helps the answer is a=-2 I got it right in the quiz

Perfect Pipes charges $120 plus $40 anhour to make plumbing repairs. No Leaks
Here charges $50 plus $60 an hour. For
how many hours is Perfect Pipes less
expensive than No Leaks Here?

Answers

Hey!

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Prefect Pipes: 120 + 40 = $160 (y-intercept)

No Leaks Here: 50 + 60 = $110 (y-intercept)

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Hour #1:

Prefect Pipes: 160 + 40 = $200

No Leaks Here: 110 + 60 = $170

Hour #2:

Prefect Pipes: 200 + 40 = $240

No Leaks Here: 170 + 60 = $230

Hour #3:

Prefect Pipes: 240 + 40 = $280

No Leaks Here: 230 + 60 = $290

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$280 < $290

After 3 hours Perfect Pipes is less expensive than No Leaks Here!

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Hope This Helped! Good Luck!

Answer: After 3.5 hours, Perfect pipes is less expensive than No leaks here.

Step-by-step explanation:

Let the number of hours be 'h'.

So, Perfect pipes charges $120 plus $40 per hour.

so, our equation becomes,

$f(h)=120+40h$

No leaks charges $50 plus $60 per hour.

So, our equation becomes,

$g(h)=50+60h$

According to question, Perfect pipes is less expensive than no leaks here after how many hours.

So, it becomes,

$120+40h<50+60h\n\n120-50<60h-40h\n\n70<20h\n\n(70)/(20)<h\n\n3.5<h$

Hence, After 3.5 hours, Perfect pipes is less expensive than No leaks here.

What fraction of the Hexagon is shaded?

Answers

Hope the answer makes sense. Ask if you're confused.

64.8%. 12 times 10 is 120. 3 times 4 is 12 so the total area is 108. 108 divided by 100 is 1.08 times 60 is 64.8%

Write an algebraic expression to represent the number of pens that can be bought with 30 cents if each pen costs c cents

Answers

Let's introduce another variable, let 'n' be any Natural Number (numbers from 1 to infinity). The number of pen you can by is given by:

n=30/c

n is your answer in this expression

Final answer:

The algebraic expression to represent the number of pens that can be bought with 30 cents if each pen costs c cents is 30/c. This expression might not always yield a whole number, as pens are discrete items and cannot be bought in fractional amounts.

Explanation:

To represent the number of pens that can be bought with 30 cents if each pen costs c cents algebraically, we would use division, since we are distributing a total amount (30 cents) evenly across multiple items (each pen). The algebraic expression would be 30/c. However, do note that this will not provide a whole number unless c is a factor of 30, since you cannot purchase a fraction of a pen.