Answer:
Both boats will be 54 miles apart after 3 hours.
Step-by-step explanation:
Given that from a point on a river, two boats are driven in opposite directions, one at 7 miles per hour and the other at 11 miles per hour, to determine how many hours they will be 54 miles apart, the following calculation must be performed :
54 / (11 + 7) = X
54/18 = X
3 = X
Therefore, both boats will be 54 miles apart after 3 hours.
The volume of a right cylinder is 2,000π cubic feet, and the height is 20 feet. What is the length of the radius in feet?
Answer:
r = 10 ft
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityGeometry
Volume of a Cylinder Formula: V = πr²h
r is radiush is heightStep-by-step explanation:
Step 1: Define
Identify variables
Volume V = 2000π ft³
Height h = 20 ft
Radius r = unknown
Step 2: Solve for r
Substitute in variables [Volume of a Right Cylinder Formula]: 2000π ft³ = πr²(20 ft)[Division Property of Equality] Isolate r term: 100 ft² = r²Rewrite: r² = 100 ft²[Equality Property] Square root both sides: r = 10 ftAnswer:10 ft
Step-by-step explanation:
Marcia is mixing lemonade. She use 3 parts water to 1 part syrup. If she has 9 parts water, how much syrup will she need to complete the mixture?
Answer:
if Marcia uses 9 parts water, that mean she will have to use 3 parts syrup
Step-by-step explanation:
this is ratios,
so to find out how many syrup she needs, you need to see how much she used water from the original recipe
so:
9 ÷ 3 = 3
so she multiplied three to get to nine, so we have to do the same to the syrup
_ ÷ 1 = 3
or:
3 × 1 = 3
so the answer is 3
a box of 10 chocolates cost $7.30. How much does one chocolate cost?
p.s I will make you brainliest only if you explain GOOD!!
Answer:
One costs $0.73
Step-by-step explanation:
When looking at this, you should divide 7.30/10. This will show each individual bar. The quotient is 0.73 which is the price of each one chocolate.
Determine the center and radius of the following circle equation: x^2+y^2+20x+8y+35=0
Answer:
center: (-10,-4)
radius: 9
Step-by-step explanation:
Let's start off by moving the 35 to the other side and grouping the x and y terms we have
(x²+20x)+(y²+8y)= -35
Next we take the term with the x coeficcent, divide it by 2, and square it
so
for the x we would do (20/2)²=100
and make sure we add that to the 35
(x²+20x+100)+(y²+8y+16)= -35+100+16
next factor everythign to get
(x+10)²+(y+4)²=81
therefore the center is (-10,-4)
and the radius is √81 or 9
There are 32 founding members of an organization. The function y 3x + 32 can be used to determine the number of members in the organization
after 3 months.
Answer:
https://studyandanswers.com/mathematics/question22956714
Step-by-step explanation:
I am not the bot btw. This is the only way I can help you. If you don't like it well to bad
Pls help ASAP !!!!!!!!
Answer:
C I got that
shdjdhfbfhfkdnfhfhfhfbf it wants me to do 20 characters long
at the school dance the ratio of students who bought snacks to the students who do not buy snacks is 426 based on this ratio how many of these students would buy a snack if there were a total of 180 students that attended the dance
four causes of solar eclips
Answer:
A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over Earth. A solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface
A coordinate plane with a straight line with a positive slope. The line starts at (0, 0) and passes through points labeled A at (2, 1) and B at (4, 2) and through (8, 4). There is a vertical dashed line starting at point A extending two units to the right and one unit up to point B.
What is the vertical change from Point A to Point B?
What is the horizontal change from Point A to Point B?
What is the rate of change shown on the graph? Give the answer as a decimal rounded to the nearest tenth, if necessary
Answer:
On edge 2021
Step-by-step explanation:
!st:1
2nd:2
3rd:0.5
Answer:
A coordinate plane with a straight line with a positive slope. The line starts at (0, 0) and passes through points labeled A at (2, 1) and B at (4, 2) and through (8, 4). There is a vertical dashed line starting at point A extending two units to the right and one unit up to point B.
What is the vertical change from Point A to Point B?
1
What is the horizontal change from Point A to Point B?
2
What is the rate of change shown on the graph? Give the answer as a decimal rounded to the nearest tenth, if necessary
0.5
Step-by-step explanation:
Identify the distance between points (3,7,1) and (9,6,7), and identify the midpoint of the segment for which these are the endpoints. Round to the nearest tenth, if necessary.
Step-by-step explanation:
[tex]range = (3,7,1) - (9,6,7) \\ = ( - 6,1, - 6) \\ distance = \sqrt{ {x}^{2} + {y}^{2} + {z}^{2} } \\ = \sqrt{ {( - 6)}^{2} + {1}^{2} + {( - 6)}^{2} } \\ = \sqrt{73} \\ = 8.5 \: units[/tex]
The distance between points (3,7,1) and (9,6,7) is 8.54 units and the midpoint of the segment is (6, 6.5, 4).
What is Distance?The length along a line or line segment between two points on the line or line segment.
Distance=√(x₂-x₁)²+(y₂-y₁)²
We need to find the distance between points (3,7,1) and (9,6,7).
Distance=√(9-3)²+(6-7)²+(7-1)²
=√6²+(-1)²+(6)²
=√36+1+36
=√73
=8.54 units
So the distance between the two points is approximately 8.5 units.
To find the midpoint of the segment between the two points, we use the midpoint formula:
midpoint = ((x₁+x₂)/2, (y₁+y₂)/2, (z₁+z₂)/2)
Using the given points, we have:
midpoint = ((3+9)/2, (7+6)/2, (1+7)/2)
= (6, 6.5, 4)
So the midpoint of the segment is (6, 6.5, 4).
Hence, the distance between points (3,7,1) and (9,6,7) is 8.54 units and the midpoint of the segment is (6, 6.5, 4).
To learn more on Distance click:
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6. The first quartile (rounded to the nearest tenth if needed) of the following data set is: 15. 16. 17. 23. 11. 19. 20. 15, 18, 22, 15
Answer:
Step-by-step explanation:
first of all arrange this data from ascending to descending order.
11,15,15,15,16,17,18,19,20,22,23
use formula
N+1/4 (N means no of observations)
11+1/4
12/4
3 rd term
therefore Q1=15
What angles are adjacent to angle 4
Answer:
2,3
Step-by-step explanation:
They are the closest angles to 4.
What is 5% of 24.8 ?
Answer: 1.24
Hope that helped! :)
what is the diameter of 18
Answer:
36
Step-by-step explanation:
radius-18
diameter = r×2
=18×2=36
hope it will help u
always remember the formula for the diameter and radius so just incase
diameter= x
radius=x÷2
Answer:
Step-by-step explanation:
What is the diameter of a circle with a radius 18?
d=36
Solution
d=2r=2·18=36
What is the diameter of a circle with the circumference of 18?
d≈5.73
Using the formulas
C=2πr
d=2r
Solving ford
d=C/ π=18/ π≈5.72958
griswolds spent 3000 on clothes in 2017. if they increase the amount thye spend on clothes by 5% each year. how much money will they spend on clothing theough the year 2020
Answer:
$3,307.5
Step-by-step explanation:
It's 3000*1.05=3150
3150*1.05=3,307.5
Answer:
3472.875
Step-by-step explanation:
5% of 3000 is 150, therefore he spent 3150 in 2018.
5% of 3150 is 157.50 therefore he spent 3307.50 in 2019
5% of 3307.50 is 165.375 therefore he spent 3472,875 in 2020
Which set of data has the smallest difference between the mean and the median?
O A 13, 42, 17, 26, 38
OB. 28, 7, 36, 8, 17
OC 14, 29, 38, 7, 13
OD 23, 36, 25, 38, 30
Answer:
D 23, 36, 25, 38, 30
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is the sum of all it's values divided by the number of values.
Median of a data-set:
The median of a data-set is the value that separates the lower 50% from the upper 50% on the ordered set.
If the cardinality n is odd, as in this case, the median is the element at the position (n+1)/2. Since in this case, n = 5, the median is the 3rd element in the ordered set.
A 13, 42, 17, 26, 38
Ordered set: 13, 17, 26, 38, 42
Median: 26
Mean: (13+17+26+38+42)/5 = 27.2
Difference: 27.2 - 26 = 1.2
B. 28, 7, 36, 8, 17
Ordered set: 7, 8, 17, 28, 36
Median: 17
Mean: (7+8+17+28+36)/5 = 19.2
Difference: 19.2 - 17 = 2.2
C 14, 29, 38, 7, 13
Ordered set: 7, 13, 14, 29, 38
Median: 14
Mean: (7+13+14+29+38)/5 = 20.2
Difference: 20.2 - 14 = 6.2
D 23, 36, 25, 38, 30
Ordered set: 23, 25, 30, 36, 38
Median: 30
Mean: (23+25+30+36+38)/5 = 30.4
Difference: 30.4 - 30 = 0.4
Option d has the smallest difference.
Find the missing side or angle.
Round to the nearest tenth.
C=53°
B= 80°
a=2
b=[?]
Answer:
2.69 approximately 3
Step-by-step explanation:
53⁰+80⁰+A=180⁰(sum of angles on a triangle)
133⁰+A=180
A=180-133
A=47⁰
using sine rule
2/sin 47 = b/sin 80
b sin47 = 2 sin 80
b= 1.9696/0.7314
b=2.69 approximately 3
A group consisting of 10 children an adult went to a movie theater children tickets cost 5 each and adults tickets cost 8 each and the total cost for 10 people was 62.how much children were in the group
9514 1404 393
Answer:
6 children
Step-by-step explanation:
If all of the group were adults, the total cost of tickets would be 8×$10 = $80. The actual cost was $80 -62 = $18 less than that. Since each children's ticket saves $3 off the cost of an adult ticket, there were $18/$3 = 6 children's tickets.
There were 6 children in the group.
_____
If you want an equation, you can let c represent the number of children. Then the cost of tickets is ...
8(10 -c) +5c = 62 . . . . 10-c is the number of adults
-3c = -18 . . . . . . . subtract 80
c = -18/-3 = 6 . . . divide by 3
Alyana's and Stephanie's combined yearly salaries are $20,615. Alyana makes 4/7 of their combined yearly salaries. How much does Stephanie make in dollars?
Answer:
$8,835
Step-by-step explanation:
Multiply the total ($20,615) by 3/7 to get your answer.
Select the correct answer.
Brent works part-time at a clothing store. He earns an hourly wage of $15. If he needs to earn more than $45 in a day and works for x hours a day, which inequality represents this situation?
A.
15x > 45
B.
15x < 60
C.
x > 60
D.
15x < 45
E.
x < 60
Answer:
A. 15x > 45
Step-by-step explanation:
cuz more than 45 hours a day.
4) A frozen yogurt shop offers eight flavors and twelve toppings. How many ways of choosing one flavor and one topping are there?
Answer:
There are 96 ways of choosing one flavor and one topping.
Step-by-step explanation:
You multiply 8 by 12 and you get 96.
30 POINTS!!!!! I NEED IT NOW!!!!!!Find the maximun, minimum,range,medium,mean,mode and the other stuff on the picture if you can if not its ok.
Answer:
34
Step-by-step explanation:
please no link answers you will be reported
Which of the following equations describes this graph?
A. y = x2 - 8x+18
B. y = x2 - 6x+10
C. y = x2 +6x+10
D. y = 2x2 - 12x+19
Answer:
B
Step-by-step explanation:
You can use the key features (such as the vertex) to determine which is the correct equation
I’ll give you five Stars right answer only
Answer:
58
Step-by-step explanation:
i think the answer is 58 please give brainliest
Answer:
(a) 18.5ft
(b) 388.5 ft²
Step-by-step explanation:
(a)
She has 79ft of fence = the perimeter will be 79.
Perimeter of a rectangle = 2(length) +2(width)
79 = 2(21)+2(width)
2(width) = 79 - 42
width = 37/2
width = 18.5ft
(b)
Area of a rectangle = (length)(width) = (21)(18.5) = 388.5 ft²
QUICK PLZZZ!! No picture link or I’ll report u !
the second option I highly think this is correct but I'm so sorry if not!!! I even did research to see if I was right
pls answer me this all question correctly pls I beg you pls friends pls pls pls pls pls pls pls pls
Answer:
[tex]a. \: 28[/tex]
[tex]b. \: 5[/tex]
Step-by-step explanation:
[tex]a. \: 88 \div 3 \frac{1}{7} [/tex]
[tex]88 \div \frac{22}{7} [/tex]
Multiply the numerator by the reciprocal of the denominator.
[tex]88 \div \frac{7}{22} [/tex]
[tex]4 \times 7[/tex]
[tex]28[/tex]
[tex]b. \: 49 \frac{2}{9} \div 9 \frac{4}{9} [/tex]
[tex] \frac{425}{9} \div \frac{85}{9} [/tex]
Multiply the numerator by the reciprocal of the denominator.
[tex] \frac{425}{9} \times \frac{9}{85} [/tex]
[tex]5[/tex]
Hope it is helpful...I will give you Brainiest if you are right.
Answer:
F. 4d + h + 2f
Step-by-step explanation:
have a good day!
Answer:
F. 4d + h + 2f
Step-by-step explanation:
There are 4 drinks (4d)
2 Fries (2f)
And 1 Hamburger (h)
Use the order of operations to find the value of the expression: 20 - 12 + 8 x 5
80
16
5
48
What annual rate of interest would you have to earn on an investment of $5500 to ensure receiving $434.50 interest after one year?
PLEASE HELPPPP
I need this answer today pls it is important pls help me out i will give you a crown and good ratings if you get it write
[tex]mean(x) = \frac{sum \: of \: elements}{total \: number \:of \: elements} [/tex]
[tex]x = \frac{81 + 72 + 75 + 81 + 64 + 70 + 76 + 74}{8} \\ x = \frac{593}{8} = 74.125 = 74[/tex]
[tex]median = 72[/tex]
[tex]mode = 81[/tex]
[tex]range = 17[/tex]