Answer:
3.6 hours
Step-by-step explanation:
One person can complete a typing project in 6 hours,
Hence, in 1 hour, 1/6 of the project is completed by person A
Another can complete the same project in 9 hours.
Hence, in 1 hour, 1/9 of the project is completed by person B
Let the number of hours of completing the project be represented by 1
Hence,
x/6 + x/9 = 1
We find the L.C.M
9x + 6x/54= 1
15x/54 = 1
Cross Multiply
15x = 54
x = 54/15
x = 3.6 hours.
Therefore, both people can complete the project in 3.6 hours.
h = 5a
Need to know what a =
Answer:
a=h/5
Step-by-step explanation:
h=5a
divide both sides by 5
a=h/5
Answer:
Step-by-step explanation:
5a = h
a = h/5
find the greatest 4 digit number which becomes divisible by 24 and 28 when 100 is added to it
Answer:
9912 is the biggest 4 digit number divisible by 24 and 28.
Step-by-step explanation:
Answer:
9812
Step-by-step explanation:
To find it, you start with the prime factors of 24 and 28 to find the lowest common multiple, which is 168.
Any multiple of 168 will also be a multiple of 24 & 28.
I hope it helps you.....
2.23 reapting (2 and 3) decimal as a fraction
Answer:
221/99
Step-by-step explanation:
2.23 repeating equals x
223.23 repeating equal 100x
subtract x from 100x and you get 99x=221
divide by 99 on both sides of the equal sign and you get x=221/99
-4+7/3 + 13-(-7)/5 how do i answer this
Answer:
the answer is 12.7333333
Step-by-step explanation:
Answer:
Step-by-step explanation:
15-(-23){3} ÷[3{23}]
15+69 ÷69
84 ÷69=1.2173
Hoped I helped
Tell whether 948 can be divided evenly
(is divisible) by 4.
Answer:
yes
Step-by-step explanation:
948 ÷ 4 = 237
Answer:
yep
Step-by-step explanation:
948/4=237
check: 237x 4=948
−14x −45=613 what is x?
Answer:x= -47
Step-by-step explanation:
-14x-45=613
-14x = 658
x = -47
Answer:
x= -47 i'm sure i did it right but tripple check it for me
Step-by-step explanation:
add 45 to both sides
divide both sides by -14
x= -47
Can anybody help me with this bellwork?
Manny is participating in a Bike-a-thon and travels at a constant rate of 6 miles in 20 minutes.
1. How long will it take manny to travel 9 miles
2. How long will it take manny to travel 10 miles?
Answer:
1. 30 minutes to walk 9 miles.
2. 33.33 minutes to walk 10 miles.
Step-by-step explanation:
I divided 20 by 6, and got 3.33. If you multiply 3.33 by 9 you get 30, and if you multiply 3.33 by 10 you get 33.33.
One cell phone company offers a plan that costs $28.99 and includes unlimited night and weekend minutes. Another company offers a plan that costs $16.99 and charges $0.35 per minute during nights and weekends. For what numbers of night and weekend minutes does the second company's plan cost more than the first company's plan?
plan1 = 29.99
plan2 =19.99 + .35m
plan2 > plan1
19.99 + .35m > 29.99
.35m > 29.99-19.99
.35m > 10
m > 10/.35
m > 28.6 minutes
it will cost more if you exceed 28 minutes
Answer: the correct answer would be 35 minutes
what is the p value definition
Answer:
statistics, the p-value is the probability of obtaining results as extreme as the observed results of a statistical hypothesis test, assuming that the null hypothesis is correct. ... A smaller p-value means that there is stronger evidence in favor of the alternative hypothesis.
Jenny runs a cake marking business. she receives an order for 6 carrots cakes. Here are the ingredients for 1 carrots cake. How much mixed spice will she need for 6 cakes. 1/1/2 teaspoons mixed spice
• Start with the number 16
• Round to the nearest ten
• Divide by the number in 2 pairs
• Add -5
• Increase by 1
What is your number?
Answer:
6
Step-by-step explanation:
Start with the number 16
16
• Round to the nearest ten
since 6 is greater or equal to 5 round 1 to 2
20
• Divide by the number in 2 pairs
Divide by 2
10
• Add -5
10 + -5 = 5
• Increase by 1
5+1 = 6
Answer:
6
Step-by-step explanation:
1. 20
2. 10
3. 5
4. 6
Hope this helps! :D
10 points
QUESTION 2
One rule of thumb for estimating crowds is that each person occupies 2.5 square feet. Use this rule to estimate the size of the
crowd watching a concert in an area that is 150 feet long and 240 feet wide.
156 people
5760 people
35031 people
14400 people
Answer:
I believe it’s 14400 people
Connor bought a baseball card eight years ago that has depreciated by $120 since he purchased it. Find the average yearly change in the value of the card.
Answer:
It decreased in value by $15 a year.
Step-by-step explanation:
I put it in the form of an equation and solved from there.
120/8=x
Maggie's brother is 3 years younger than four times her age. The sum of their ages is 62. How old is Maggie? Maggie is years old.
Answer:
Maggie is 13 years old.
Step-by-step explanation:
1M + 1B = 62
rearrange to get:
1B = 62 - 1M
4M - 3 = 1B
substitute B with 62 - 1M so there is only one variable. this gives:
4M - 3 = 62 - 1M
Get all the variables on one side:
4M + 1M - 3 = 62
Get all non variables on the other side:
4M + 1M = 62 + 3
simplify:
5M = 65
Divide both sides by 5 to get the M by itself:
M = 13.
BONUS:
M + B = 62
B = 49
So her brother is 49 years old.
Maggie is 13 years old.
Leslie cobar's piggy bank 36 coins. Some are quarters and rest are half - dollars. If the total vaule of the coins is $14.75, how many of each of denomination does Leslie have?
Answer:
Leslie has 13 quarters and 23 half-dollars.
Step-by-step explanation:
You can write the following equations from the information given and considering that a quarter is $0.25 and half-dollar is $0.50:
x+y=36 (1)
0.25x+0.50y=14.75 (2), where:
x=amount of quarters
y=amount of half-dollars
First, you can isolate x in (1):
x=36-y (3)
Then, you can replace (3) in (2):
0.25(36-y)+0.50y=14.75
9-0.25y+0.50y=14.75
0.25y=5.75
y=5.75/0.25
y=23
Finally, you can replace the value of y in (3) to find the value of x:
x=36-23
x=13
According to this, the answer is that Leslie has 13 quarters and 23 half-dollars.
What is 1020-600+700-100+3-2-600-1?
Answer:
HAVE A GOOD DAY!
Step-by-step explanation:
Hope this is correct and helpful
Answer: 420
Step-by-step explanation:
1020-600=420+700=1120-100=1020+3=1023-2=1021-600=421-1=420
Which part of the angle is the vertex?
A. AB
B. Point A
C. AC
D. Point C
Answer:
Point A
Step-by-step explanation:
The vertex is where the two rays meet together
A is the vertex
The vertex of the angle is the shared endpoint of the two rays [tex]\underset{AB}{\rightarrow}[/tex] and [tex]\underset{AC}{\rightarrow}[/tex], that is, the vertex is at Point A. Hence, option B is the right choice.
What is a ray?A ray is made up of a half-line and its endpoint.
If a ray has an endpoint A and a B that is any other half-line point, then the ray is represented by [tex]\underset{AB}{\rightarrow}[/tex].
What is an angle?A pair of rays with a shared endpoint form an angle.
The rays are referred to as the angle's sides.
The shared endpoint is referred to as the angle's vertex.
How do we solve the given question?We are asked to identify the vertex of the given anis
The given angle is made of the rays [tex]\underset{AB}{\rightarrow}[/tex] and [tex]\underset{AC}{\rightarrow}[/tex], the shared endpoint is at Point A.
As we know, the shared endpoint is the vertex of the angle, so Point A is the vertex of the given angle. Hence, Option B is the right choice.
Learn more about rays and angles at
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consider the equation 3a+0.1n=123 if we solve this equation for n which equation would result.
Answer:
[tex]n = 1230 - 30a[/tex]
Step-by-step explanation:
Given
[tex]3a + 0.1n = 123[/tex]
Required
Solve for n
[tex]3a + 0.1n = 123[/tex]
Subtract 3a from both sides
[tex]3a - 3a + 0.1n = 123 - 3a[/tex]
[tex]0.1n = 123 - 3a[/tex]
Divide through by 0.1
[tex]n = \frac{123 - 3a}{0.1}[/tex]
Split the fraction
[tex]n = \frac{123}{0.1} - \frac{3a}{0.1}[/tex]
[tex]n = 1230 - 30a[/tex]
A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1 kilogram. Assuming the weight loss happened at a constant rate, about how many pounds did the group lose each day?
Answer: 12.32 for 5 day week or 8.8 for a seven day week
Step-by-step explanation:
2.2 x 28 = 61.6
61.6 divided by 5 is 12.32
divide by seven if its a full week and the answer is 8.8
find the values of a and b.
Answer:
a=6
b=5
Step-by-step explanation:
Answer:
a= 6, b=5
Step-by-step explanation:
Please see the attached picture for full solution.
How would the graph change if the b value in the equation is decreased but remains greater than 1?
Answer:
-The graph will increase at a slower rate.
-The y-values will continue to increase as x-increases
hope this helped
please give brainlist
PLEASE HELP
Find a second point on the line with slope m and point P, graph the line and find an equation of the line.
1. m=2, P=(1,3)
2. m= -2, P=(1,4)
Answer:
1. equation of a line
y-y1=m(x-x1)
y-3=2(x-1)
y-3=2x-2
y=2x-2+3
y=2x+1
I am having issues with the equations (7^-6)^10
For a regular 15-sided polygon, what is the degree of rotation? Enter your answer in the box.
Answer:
24
Step-by-step explanation:
i just took the test :)
The degree of rotation will be equal to 24°.
It is given that we have a regular 15 sided polygon.
We need to find out the degree of rotation for it.
What is the formula to determine degree of rotation ?
The formula of degree of rotation is given by Degree of rotation = 360° / Number of sides.
As per the question ;
We have a regular 15 sided polygon.
or
No. of sides of regular polygon = 15
We know that ;
Degree of rotation = 360° / Number of sides
⇒ Degree of rotation will be equal to ;
= 360° / 15
= 24°
Thus , the degree of rotation will be equal to 24°.
To learn more about degree of rotation click here ;
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When 1580 is divided into 13 equal parts, the remainder is 7. What is a correct way to write the quotient? 121.7 121 + 7 1217 over 1580 1217 over 13
Answer:
121.54
Step-by-step explanation:
1580÷13=121 r 7
7 over 13 is 0.538462
rounded off to 2 decimal places:0.54
so 121+0.54
121.54
A volcanic eruption releasing rock, ash, and dust particles into the air is an example of which interaction?
the biosphere interacting with the geosphere
the geosphere interacting with the atmosphere
the geosphere interacting with the hydrosphere
the hydrosphere interacting with the atmosphere
The interaction described is that of the geosphere interacting with the atmosphere.
The geosphere refers to all the rock and mineral materials that we have on our planet including:
Lava in the mantle Soil Mountains and everything made of rockThe atmosphere is the air that surrounds the Earth including gases like Nitrogen and Oxygen.
When a volcano erupts therefore, it is releasing rock (geosphere) into the air (atmosphere).
As a result, we can conclude that a volcano erupting is an interaction between the geosphere and the atmosphere.
Find out more at https://brainly.com/question/9969348.
Answer: C
Step-by-step explanation:
the geosphere interacting with the hydrosphere
simplify the expression below.
(3-13)²+14/4²-5·2
PLEASE HELP 10 POINTS
r - I0 = -(10 - r)
Answer:
Infinite Number of Solutions
Step-by-step explanation:
[tex]r-10=-(10-r)\\\\r-10=-10+r\\\\r-10+10=-10+10+r\\\\r=r\\\\r-r=r-r\\\\\boxed{0=0}[/tex]
The sides are even. There are an infinite number of solutions.
If s ( x ) = 2 - x² and t ( x ) = 3x, what is s ( t ( -7 ) )?
Answer:
s (t (-7))=?
Step-by-step explana
s (t (-7))= -7s t
Suppose point D is in the interior of ∠ABC
, m∠ABC=12x−110
, m∠ABD=3x+40
, and m∠DBC=2x−10
. W
Answer:
[tex]ABC = 130[/tex]
Step-by-step explanation:
Given
[tex]ABC=12x - 110[/tex]
[tex]ABD=3x+40[/tex]
[tex]DBC=2x - 10[/tex]
Required
Determine the measure of ABC --- Missing part of the question
First, we need to determine the value of x
Since, D is an interior of ABC, then
[tex]ABC = ABD + DBC[/tex]
[tex]12x - 110 = 3x + 40 + 2x - 10[/tex]
Collect Like Terms
[tex]12x - 3x - 2x = 110 + 40 - 10[/tex]
[tex]7x = 140[/tex]
Solve for x
[tex]x = 140/7[/tex]
[tex]x = 20[/tex]
Substitute 20 for x in [tex]ABC=12x - 110[/tex]
[tex]ABC = 12 * 20 - 110[/tex]
[tex]ABC = 240 - 110[/tex]
[tex]ABC = 130[/tex]
