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
ch4aika [34]
3 years ago
6

If the square of a positive number is increased by 4 times the number, the sum is 117.

Mathematics
1 answer:
Vesna [10]3 years ago
3 0

Answer:

29.25

Step-by-step explanation:


You might be interested in
Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’
lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

x-0.1x+2.70=56.70

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the <em>original price of the jeans</em>.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans <em>after</em> the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is <em>not</em> a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

(70)-0.1(70)+2.7\stackrel{?}{=}56.70

Multiply:

70-7+2.7\stackrel{?}{=}56.7

Subtract:

63+2.7\stackrel{?}{=}56.7

Add:

65.7\neq56.7

However, we <em>can</em> verify that 60 <em>is</em> the solution by substituting. So, substitute 60 for every x:

(60)-0.1(60)+2.7\stackrel{?}{=}5.7

Multiply:

60-6+2.7\stackrel{?}{=}56.7

Subtract:

54+2.7\stackrel{?}{=}56.7

Add:

56.7\stackrel{\checkmark}{=}56.7

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0
3 years ago
Read 2 more answers
Assume that military aircraft use ejection seats designed for men weighing between 141.8 lb and 218 lb. If​ women's weights are
Mariulka [41]

Answer:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

Step-by-step explanation:

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(173.6,49.8)  

Where \mu=173.6 and \sigma=49.8

We are interested on this probability

P(141.8

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

8 0
3 years ago
Write the sentence as an equation. t equals 137 minus w
loris [4]

Answer:

t = 137-w

Step-by-step explanation:



4 0
3 years ago
Read 2 more answers
Find sin 0.<br> 16<br> 20<br> 12
Flura [38]

<em>Answer:</em>

<em>A 16/20</em>

<em>explanation: 772.malachi on insta</em>

<em>Sin: 16/20</em>

<em>Cos: 12/16</em>

<em>Tan: 16/12</em>

5 0
3 years ago
Question 8 the price of a cup of coffee was $2.55 yesterday. today, the price fell to $2.40 . find the percentage decrease. roun
Alex787 [66]
The answer would be 5.9%
3 0
3 years ago
Other questions:
  • What is the 12th term in the sequence?<br><br> an=−16+2n<br><br><br> Enter your answer in the box.
    8·2 answers
  • Randall is 15 years younger than Wendy. 8 years ago, Wendy's age was 2 times Randall's age. How old is Randall now?
    11·1 answer
  • Adele has 3 64-ounce cartons of orange juice and 3 48-ounce cans of apple juice. How much juice does she have altogether?
    10·1 answer
  • Which expression is equivalent to sqrt -108- sqrt -3
    7·2 answers
  • What’s the slope of a line that passes through the points (-3,7) and (-3, 4)?
    11·2 answers
  • 10x-7x+3<br> simply plssss
    7·2 answers
  • Find the product<br> (3x+4y)(x+y)
    8·2 answers
  • Q2) A meat pie contains chicken and turkey in the ratio 4 : 1.    ( 3 marks)
    7·1 answer
  • A company prints designs on T-shirts. They charge $40 for set-up costs plus $12 hirt. Complete the table of values for this situ
    15·2 answers
  • Ii
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!