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
lana66690 [7]
3 years ago
12

Ation in an Application Problem

Mathematics
1 answer:
Greeley [361]3 years ago
6 0
Less than $3 because 25/7/2
You might be interested in
A group of seven adults went to the movies. The total cost of the movie tickets was $30. This doesn't seem possible, does it? Af
Artyom0805 [142]

Answer:

no. of senior citizens=x

no.of other people=7-x

cost=30=k(7-x)+(k/2)x. k is the cost of a ticket

k(7-x+x/2)

k(7-x/2)-30=0

k=60/(14-x)

now do trial and error substitution for (x<7) until u get a whole number for k also (k<30). if you have the skills you can suggest the number yourself

ie x= 2, k=5$

4 0
3 years ago
0.1x+0.2y=-1;0.5x-0.9y=6.4
Harman [31]
.1x+.2y=-1
.5x-.9y=6.4

×-5 equation .1x+.2y=-1

-.5x-y=5
.5x-.9y=6.4

solve by elimination

-1.9y=11.4
÷-1.9 both sides
y=-6

solve for X

.1x+.2 (-6)=-1
.1x-1.2=-1
+1.2 both sides
.1x=.2
÷ 1 both sides
x=2

plug into 2nd equation to see if it's true

x=2
y=-6

0.5(2)-0.9(-6)=6.4
1+5.4=6.4
6.4=6.4 answers hold true
4 0
3 years ago
Martha is constructing the circumscribed circle for△RST. She has already used her compass and straightedge to complete the part
lianna [129]
Place the point of the compass on the intersection of AB and CD and extend the compasses to point R.
3 0
3 years ago
Read 2 more answers
A cylinder shaped storage tank has a radius of (x+5) metres and a height of x metres. Determine the dimensions (round to two dec
givi [52]

Answer:

Radius = 6.46 meters

Height = 1.46 meters

Step-by-step explanation:

The volume of a cylinder = πr²h

In the above question, we were given

r = (x + 5) meters

h = x meters

Volume = 192 cubic meters

Hence,

192 = π × (x + 5)² × x

192 = π × (x² + 10x + 25) × x

192 = π × (x³ + 10x² + 25x)

Divide both sides by π

192/π = x³ + 10x² + 25x

61.115498147 = x³ + 10x² + 25x

x³ + 10x² + 25x - 61.12

This Quadratic equation is a polynomial

x = 1.46119

From the above:

Radius = (x + 5)meters

Radius = 1.46119 + 5 = 6.46119 meters

Approximately to 2 decimal places = 6.46 meters

Height = x meters

Height = 1.46119 meters

Approximately to 2 decimal places = 1.46 meters

6 0
3 years ago
1. 4/5 - (-3/10)=
Yuri [45]

Answer:

Step-by-step explanation:

4/5-(-3/10)=4/5+3/10=8/10+3/10=11/10

5.5-8.1=-2.6

-5-5/3=-15/3-5/3=-20/3

-8 3/8-10 1/6=-67/8-61/6=-445/24

-4.62-3.51=-8.13

8 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Solve for the variable in the following proportion.
    14·2 answers
  • How many gallons of a 80% antifreeze solution must be mixed with 60 gallons of 30% antifreeze to get a mixture that is 70% antif
    5·1 answer
  • Here is a set of data: 11, 14, 10, 12, 19, 15, 18, 22, 8. what is the median?
    11·1 answer
  • 57/9 to a mixed number
    6·2 answers
  • I need help to solve this
    11·2 answers
  • Expand and simplify : 3(2x+1)+2(x+3)
    5·1 answer
  • In the figure, j∥k and m∠1 = 63°. What is the m∠3 ? Enter your answer in the box.
    11·2 answers
  • Calvin found census data for the population of Idaho from 1870 through 2000. He made the chart and scatter plot using this
    6·2 answers
  • Drag and drop the correct answer​
    13·1 answer
  • Frank has $156.87 he spends $21.58 to buy a gift for his sister he also earned $45.50 how much does he have now?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!