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
algol [13]
2 years ago
9

Mr. Wong wants to purchase 12 new smoke detectors for his house. Store A sells each smoke detector for $17 and Store B sells eac

h smoke detector for $24. If Mr. Wong purchases all his smoke detectors at Store A, how much less will he spend than if he purchased all the smoke detectors at Store B?
Mathematics
2 answers:
Nady [450]2 years ago
5 0

Answer:

84

Step-by-step explanation:

AfilCa [17]2 years ago
4 0

Answer:

$84

Step-by-step explanation:

so for store A, you would do $17*12 smoke detectors,  Which would give you $204. For store B you would do $24*12 smoke detectors. That is $288. Now all you do is 288-204=84. You would save $84 dollars going to store A

You might be interested in
which expression shows the result of applying the distributive property to 12 (5y + 4) ? A. 60y + 48 B. 5y + 48 C. 17y + 16 D. 6
PSYCHO15rus [73]
A because you just distribute the 12 to both
7 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form (y = mx + b).
Wewaii [24]

Answer:

y = 2/7x + 7

Step-by-step explanation:

We start off by putting the original equation into slope-intercept form. Subtract 7x from both sides, then divide both sides by -2. Your new equation should be y = -7/2x - 8. It's important to know that when two lines are perpendicular, their slopes (m) are opposite reciprocals of each other.  So -7/2 becomes 2/7. The first part of your final equation is y = 2/7x + b.

Next, we need to find the y intercept (b). You need to plug the x and y values from the given coordinate point (-7,5) into your final equation. You should end up with: 5 = 2/7(-7) + b. Then, solve for b.

5 = -14/7 + b

5 = -2 + b

7 = b

Finally, plug the b value into your final equation and you will have your answer.

4 0
3 years ago
Fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial. $\[x^2 + 22x + \under
saw5 [17]

Answer:

$\[x^2 + 22x + 121\]$

Step-by-step explanation:

Given

$\[x^2 + 22x + \underline{~~~~}.\]$

Required

Fill in the gap

Represent the blank with k

$\[x^2 + 22x + k\]$

Solving for k...

To do this, we start by getting the coefficient of x

Coefficient of x = 22

<em />

Divide the coefficient by 2

Result = 22/2

Result = 11

Take the square of this result, to give k

k= 11^2

k= 121

Substitute 121 for k

$\[x^2 + 22x + 121\]$

The expression can be factorized as follows;

x^2 + 11x + 11x + 121

x(x + 11)+11(x+11)

(x+11)(x+11)

(x+11)^2

<em>Hence, the quadratic expression is </em>$\[x^2 + 22x + 121\]$<em></em>

8 0
3 years ago
Read 2 more answers
There are 20 pens in a package. Ten of the pens are black, 8 are blue, and the rest are red.
icang [17]
If there are ten black pens, eight blue pens, and twenty pens in total, then there are 2 red pens. This means that the ratio of red to black is 2:10=1:5. Hope this helps!
3 0
2 years ago
Read 2 more answers
Help me please!!!!!!!!!
Veseljchak [2.6K]

Answer:

The answer is B since all parabolas have a domain of all real numbers

4 0
2 years ago
Other questions:
  • Pls help me, is very important! Many thanks
    7·1 answer
  • Which is the equation of a line that has a slope of 5 and passes through point (2, -3)?
    13·1 answer
  • What is the average rate of change of the function fx= 2x2+ 3 over the interval [1,4]?
    6·1 answer
  • on saturday night hank had w basketball games he got to the gym 20 min before his first game each game lasted 1 1\2 hours there
    13·1 answer
  • I have two coins totaling 15 cents. One of them is it a nickel. What are they?
    10·1 answer
  • the distance from school to Zoie's house is 3km469m. Jamie's house is 4km301m farther away from Zoie's. How far is it from Jamie
    13·1 answer
  • I just need the numbers can anyone help me with this ??
    8·2 answers
  • PLEASE ANSWER FAST DUE IN 20 MINS PLEASE ANSWER FAST FAST FAST
    14·1 answer
  • An environmental activist wants to look at the relationship between number of incentive actions taken by the government and the
    13·1 answer
  • For how many positive integers n is it possible to have a triangle with side lengths five, 12, and n
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!