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
gavmur [86]
3 years ago
10

Thirty times the square of a non-zero number is equal to 8 times the number. What is the number?

Mathematics
1 answer:
astra-53 [7]3 years ago
4 0
Hello here is a solution :

You might be interested in
In 1950 the number of retirees was approximately 150 per thousand people aged 20-64. In 1990 this number rose to approximately 2
serg [7]

Answer: 233 people per thousand

Step-by-step explanation:

Using extrapolation method,

if 150/k in 1950,

  200/k in 1990,

  275/k in 2020,

2003 lies in between 1990 and 2020. So, you extrapolate the values of 200/k and 275/k for the years respectively.

Therefore,  

(2003 - 1990)/(2020 - 2003) = (x - 200)/(275 - x)

Where x is the number of retirees per thousand for 2003

Making x the subject of relation in the above equation.

Cross multiply the equation above;

(2003 - 1990)(275-x) = (2020 - 2003)(x - 200)

13(275 - x) = 17(x-200)

3575 - 13x = 17x - 3400

Collect the like terms

3575+3400 = 17x + 13x

30x = 6975

x = 6975/30

x = 232.5

x = 233 people per thousand to the nearest integer

6 0
3 years ago
Gustavo and yuki were asked to find an explicit formula for the sequence 19, 0, -19, -38...
KiRa [710]

Answer:

<h2>Neither Gustavo nor Yuki</h2>

Step-by-step explanation:

It's an arithmetic sequence.

0-19=-19\\-19-0=-19\\-38-(-19)=-38+19=-19

The difference is constant.

The explicit formula of an arithmetic sequence:

a_n=a_1+(n-1)d

Substitute:

a_1=19,\ d=-19

a_n=19+(n-1)(-19)             <em>use distributive property</em>

a_n=19-19n+19\\\\a_n=(19+19)-19n\\\\a_n=38-19n

4 0
3 years ago
The flag football league eventually had 72 kids sign up for the spring season after putting six teams together from the original
enyata [817]

Answer:

each team has 12

Step-by-step explanation:

8 0
2 years ago
I need help with these 2 problems
eimsori [14]

Answer:

d and c

Step-by-step explanation:

3 0
3 years ago
Squares have four congruent sides and four angles that measure 45 degrees.
trapecia [35]
The answrr is truedde
8 0
3 years ago
Read 2 more answers
Other questions:
  • I need some help with this calculus 1 implicit diffrention problem?
    5·1 answer
  • A quadrilateral is graphed on a coordinate plane. If the vertices are A(2, 6), B(6, 0), C(2, –6) and D(–4, 0), which two points
    11·2 answers
  • I want to plant 45 sunflower plants and 81 rose plants in my garden. If I put the same number of plants in each row and each row
    15·1 answer
  • The lower half of a square pyramid is made of granite and the top half is made of limestone. Explain how you could find the surf
    12·1 answer
  • What Is The Missing Angle Measure of This Irregular Quadrilateral​
    6·1 answer
  • Multiple choice please answer please
    7·2 answers
  • What are properties of rotations? Check all that apply
    5·1 answer
  • Valentina is choosing cutlery with which to eat dinner. There are 2 knives and 10 forks to
    10·1 answer
  • You are baking a casserole. The recipe calls for of a cup of beans to make 5 servings. How many cups of beans would you need to
    10·1 answer
  • The director of a health clinic has a quarterly budget of $600,000. She
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!