1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aalyn [17]
3 years ago
13

Eight times the difference of a number and seventeen is thirty"?

Mathematics
1 answer:
ladessa [460]3 years ago
5 0
"The number" is first, do an example, to find out how, like pick any number under 17. Let's do 14. Their difference is 3. 8*3=24. that;s not quite 30. We have to find a number to equal 30, let's pick 15 and 17. Their difference is 2. 2*8=16. Not quite. Now, check the multiplication table for 8. Do any of them equal 30? No. So now you can see that the answer is going to have a decimal place. Divide 30 by 8. That equals to 3.75. Now do 17 minus 3.75. That is 13.25. The difference between 13.25 and 17 is 3.25. Now, do 8*3.75. That is 26. Oops. I am not in high school, but keep going like that and YOU'LL FIND IT! I BELIEVE IN YOU!
You might be interested in
WILL GIVE BRAIINLIEST ANSWER Tomas is at least 7 years older than Larry. If Tomas is 16 years old, how old is Larry?
ra1l [238]
Larry - ( 9 years old )
8 0
3 years ago
Drag the item from the item bank to its corresponding match.
ANTONII [103]

Answer:

i cant help you because i cant see the things on the picture if u get a better picture i can help

Step-by-step explanation:

7 0
3 years ago
Find an equation of the line that satisfies the given conditions. through (−5, −7); perpendicular to the line passing through (−
murzikaleks [220]

Answer:

The equation would be y = 2x + 3

Step-by-step explanation:

In order to solve this, we first need to find the slope of the line between (-2, 5) and (2, 3). In order to do this, we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (3 - 5)/(2 - -2)

m = -2/4

m = -1/2

Now that we have the original line with a slope of -1/2, we can tell a perpendicular line would have a slope of 2. This is because perpendicular lines have opposite and reciprocal slopes. Now we can use that slope and the given point in point-slope form to get the answer. Be sure to solve for y.

y - y1 = m(x - x1)

y + 7 = 2(x + 5)

y + 7 = 2x + 10

y = 2x + 3

7 0
3 years ago
Gregory needs to purchase a washer and dryer. He finds both on sale for $2,000. He has decided to pay for them on an installment
Lesechka [4]

Step-by-step explanation:

.20 times 2000 is your answer = $40 is 20% of 2000.

6 0
3 years ago
Let f be the function given by f(x)= (x-1)(x^2-4)/x^2-a. For what positive values of a is f continuous for all real numbers x?
9966 [12]

Answer:

a =1 and a=4.

Step-by-step explanation:

The function is

f(x)=\frac{(x-1)(x^2-4)}{x^2-a}

If we want f(x) to be continuous the denominator needs to be different to 0, otherwise f(x) will be indeterminate.

Now, for a a positive real we have that x=\sqrt{a} will annulate the denominator, i.e

(\sqrt{a})^2-a = a-a = 0. But, if a = 1 we have:

f(x)=\frac{(x-1)(x^2-4)}{x^2-1} = \frac{(x-1)(x^2-4)}{(x-1)(x+1)}=\frac{(x^2-4)}{x+1}

so, the value x=\sqrt{a} = \sqrt{1} = 1 won't annulate the denominator.

Now, for a = 4 we have:

f(x)=\frac{(x-1)(x^2-4)}{x^2-4} = x-1

so, the value x=\sqrt{a} = \sqrt{4} = 2 won't annulate the denominator.

In conclusion, for a=1 or a=1, the function will be continuos for all real numbers, since the denominator will never be 0.

4 0
3 years ago
Other questions:
  • Which expression is not requivalent to<br> 3x - 2?
    10·1 answer
  • Jen graphs the equation y = 4x. Which point is on the line?
    14·1 answer
  • What is the slope of the long represented by the equation y=4/5x-3
    15·2 answers
  • J scored 80% on a test. He missed 4 problems. How many problems were on the test?
    9·2 answers
  • 2 prime numbers that add up to 48
    8·1 answer
  • How many seconds is 5.368 rounded to the nearest tenth of a second
    9·1 answer
  • You buy a shirt that is on sale for 30% off. You pay $22.40. Your friend wants to know the original price of the shirt. Whats th
    7·2 answers
  • Solve 5x − 2(2x − 1) = 6
    6·2 answers
  • What is the answer to y=-2(-3/2)-9
    8·2 answers
  • Find the domain of where f(x) = x + 10 and g(x)=x².
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!