What can you say about the LCM of two numbers, if one (or both) of
the numbers is prime?
Answer:
If one or both numbers are prime, the LCM(Lowest Common Multiple) is the product of the numbers. e.g the LCM of 2 and 5 is 10; 2×5
The number of seconds varies directly as the number of minutes. When 240 seconds have passed. 4 minutes have passed. If 420 seconds have passed , how many minutes have passed? ( help pls >.< )
Answer:
7 minutes.
Step-by-step explanation:
You can simply apply the well known rule if time: 60mins makes 1 hour,
or use proportion;
where x is the value you seek,
4=240
x=420
The relationship between 4 and 249 is 60 so,
420 divided by 60 equals 7 minutes.
Hope this is helpful,
if so please mark brainliest.
Mario measured the depth of the river as a function of time and graphed his findings. Use this graph to answer the following question.
What is the maximum depth of the river?
1 meter
22 minutes
10 meters
9 minutes
Answer:
10 meters
Step-by-step explanation:
highest value on y-axis
HELP PLEASE ASAP!!! PLEASE AND THANKS
Answer:
x >= 12
Step-by-step explanation:
2x + 7 <= 3x - 5
7 + 5 <= 3x - 2x
12 <= X
Does 3(2k-5)=6(k-4)+9 have no solution of many solutions
Answer:
infinite (many)
Step-by-step explanation:
3(2k-5)=6(k-4)+9
6k-15=6k-15
since they are the same on both sides of the equal side any solution for x would work.
The equation 3(2k - 5) = 6(k - 4) + 9 has many solutions.
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We have,
3(2k - 5) = 6(k - 4) + 9
6k - 15 = 6k - 24 + 9
6k - 15 = 6k - 15
Both sides of the equation are the same.
This means,
The equation has many solutions.
Thus,
The expression has many solutions.
Learn more about solutions of equations here:
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hi Help pls will mark as brainlist!!!!!!!!!
Without graphing, classify the system as independent, dependent, or inconsistent.
S x – 5 = - y
| 2y - 10 = – 21
Answer:
Step-by-step explanation
I
D
K
Sorry
how do you write y - 2 = -(x - 3) in slope-intercept form? A) y = x + 3 B) y = x - 1 C) y = -x + 5 D) y = -3x - 1
There are 6 yellow, 4 orange, 2 green, and five blue plastic building blocks all the same
size in a bag. What is the probability of selecting an orange, putting it back, then
а
selecting a block that is not orange.
We want to get the probability of selecting an orange, putting it back, then selecting a block that is not orange.
We will see that the probability is P = 0.1799
In the bag we have:
6 yellow blocks4 orange blocks2 green blocks5 blue blocks.For a total of 6 + 4 + 2 + 5 = 17 blocks.
First we want to find the probability of getting an orange block, as all the blocks have the same probability of being randomly drawn, the probability of randomly drawing an orange block is equal to the quotient between the number of orange blocks and the total number of blocks.
We get:
p = 4/17
Now we put the orange block back and we want to take a block that is not orange, the probability is computed in the same way:
q = (6 + 2 + 5)/17 = 13/17
The joint probability (this is, the probability of these two events happening together) is just the product of the individual probabilities.
We get:
P = p*q = (4/17)*(13/17) = 52/289 = 0.1799
If you want to learn more, you can read:
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rewrite the equation in standard form y - 6 = -1/2 (x-5)
Standard Form: Ax + By = C
---A cannot be negative, nor can it be a decimal or fraction
y - 6 = -1/2(x - 5)
Distribute the -1/2
y - 6 = -1/2x + 5/2
Add -1/2x to both sides
1/2x + y - 6 = 5/2
Add 6 to both sides
1/2x + y = 17/2
Multiply everything by 2 to get rid of the fractions
x + 2y = 17
Hope this helps!! :)
GIVING BRAINLIEST PLS FAST
Answer: is not a full square
Step-by-step explanation:
Just look at the degree ; if it were a multiple of two , then the number would be a full square ; but as we see , 9 is not a multiple of two , from which it is not a full square
PLEASEEEEE HEELP MEEEE DO THIS WORK THANK U!
Answer:
There are no solutions.
Step-by-step explanation:
Put it in an equation
x + 5 = x − 13
Let's solve your equation step-by-step.
x + 5 = x − 13
Step 1: Subtract x from both sides.
x + 5 − x = x − 13 − x
5 = − 13
Step 2: Subtract 5 from both sides.
5 − 5 = − 13 − 5
0 = − 18
Answer:
There are no solutions.
Justin worked 12 hours and 4 minutes on Saturday and 13 hours and 41 minutes on Sunday. How many hours did Justin work this weekend?
Answer:
Justin worked 25 hours and 45 minutes.
25 3/4 hours total
First add the hours together.
12 + 13 = 25
Then add the minutes together.
4 + 41 = 45
So 25 hours and 45 minutes
or
25 3/4 hours
45 minutes is also 3/4 of an hour
help???? i will be so greatfull
if x°,2x°and 30°are the angles of triangle ,find x°and 2x°
Answer:
x° = 50° 2x°= 100°
Step-by-step explanation:
sum of all angle of triangle = 180° therefore
x° + 2x° + 30° =180°
3x° = 180° - 30°
3x = 150°
x = 50°
2x = 100
Lance wrote down a lot of plus sevens and minus fours. Altogether he wrote 22 digits. When he came to add them all up the total was zero. How many plus sevens were there?
can someone tell me if this is correct.
Dividing Decimals by Decimals Word Problems
The Sanchez family drove 48.9 miles to the river. It took them 1.2 hours to get there. How fast did they drive in miles per hour?
Please answer quickly because this is due tomorrow
Answer:
speed = distance÷time 48.7÷1.2 = 40.58
find the missing values in the ratio table then write the equivalent ratios
PLS HURRY!!
Answer:
1. 10
2. 4, and the bottom row is 21
3. divide the bottom by 4. you get 8
4. top row is 15 and bottom row is missing 6
Find the slope of each line.
А
B
с
A)
A
B)
C)
Answer:
A=b B=C C=A
Step-by-step explanation:
Please I actually need this done
Answer:
AC = 19
Step-by-step explanation:
A__C__S
AS = AC + CS
6x -4 = (4x-1) + 7
6x - 4 = 4x + 6
6x - 4x = 6+ 4
2x = 10
x = 10/2
x = 5
AC = 4x -1 = 4(5) - 1 = 20 - 1 = 19
I hope I helped you^_^
Answer:
19
Step-by-step explanation:
AS = AC + CS
6x - 4 = 4x -1 +7
6x - 4 = 4x + 6
Add 4 to both sides,
6x = 4x + 6 + 4
6x = 4x + 10
Subtract 4x from both sides
6x- 4x = 10
2x = 10
Divide both sides by 2
x = 10/2
x = 5
AC= 4x - 1
= 4*5 - 1
= 20 - 1
= 19
After being discounted by 20%, a bicycle sells for $140. What was the bicycle's original cost?
Answer:
$700
Step-by-step explanation:
20%=140
divide both sides by 20
1%=7
times both sides by 100
100%= 700
$700
hope this helps
Cup o’ Coffee buys its coffee for $1.25 a cup. The coffee shop then sells each cup for $3.75. What is the percent markup for a cup of coffee?
Answer:
47%
Step-by-step explanation: 375 × .125 = .046875
rounding up, 5 keeps the 7 as is, 7 is greater than 5, therefore the 8, becomes a 9, 9 is greater than 5, so the 6 becomes a 7, .047.
move the decimal three digits to the left and you get, 47%.
I will give you brainliest if you solve the math question
Answer:
y = 50, x = 74
Step-by-step explanation:
the total degrees must equal 180. In the left triangle, we are given 80 as in of them. 180-80=100 degrees left in the triangle there are two equal angles left, so we divide 100/2 and get 50, so y=50. In the triangle on the right, there are two equal angles of 53 degrees. So 53x2=106. 180-106= 74 degrees left. x is the only angle left, so x=72
I WILL GIVE BRAINLIEST AND 30 POINTS
What is the slope of the line on the graph?
Enter your answer in the box.
Answer:
6
Step-by-step explanation:
(y1-y2)/(x1-x2) = (-1-5)/(0-1) = -6/-1 = 6
hope it helps!
Select from the drop-down menus to correctly complete the statements about simplifying an expression with grouping symbols. When an expression has more than one set of grouping symbols, simplify within the Choose... grouping symbols first. The Choose... symbol can also be a grouping symbol. Simplify the Choose... separately. Choose... follow the order of operations within a set of grouping symbols.
Answer:
nuber 1 is sum 2 is quotient 3 is produckproduct
Step-by-step explanation:
number 1 is sum, 2 is quotient , 3 is product.
What is set?A set is a collection of objects that have something in common or follow a rule. The objects in the set are called its elements.
here, we have,
an expression with grouping symbols.
When an expression has more than one set of grouping symbols,
So, the answer is,
number 1 is sum, 2 is quotient , 3 is product.
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Which graph shows the function f(x) = x with an input of f(x – 3)?
Answer:
Option BStep-by-step explanation:
f(x - 3) is the horizontal shift 3 units right.
The B graph is displaying this translation, the graph A is also a horizontal shift of f(x) = x, but the shift is 3 units left.
The graphs C and D are vertical transformations and therefore incorrect.
Answer:
Its Option D
Step-by-step explanation:
I gotta D for the right answer.
Select all statements that are true about the triangles.
Answer:
D
Step-by-step explanation:
Side andle side
if a mine inspector starts at level -13 and goes up 3 levels and goes up 3 more levels at what level is she at ??
Answer:
The mine inspector is at level -7
Answer: -13 + 3 + 3 = -7
Angela plays soccer and golf for a total of 125 minutes every day. She plays soccer 45 minutes more than she plays golf.
Part A: Write a pair of linear equations to show the relationship between the number of minutes Angela plays soccer (x) and the number of minutes she plays golf (y) every day. (5 points)
Part B: How much time does Angela spend playing golf every day? (3 points)
Part C: Is it possible for Angela to have spent 80 minutes playing soccer every day? Explain your reasoning. (2 points)
(10 points)
will give brainliest if u do all parts!!!
Part A
Answers:
x+y = 125
x = y+45
---------------
Explanation:
The first equation represents Angela playing both sports a combined 125 minutes. We simply add the variables x and y to represent adding the times for soccer (x) and golf (y).
Because she plays soccer 45 minutes more compared to golf, we also have the equation x = y+45.
==========================================================
Part B
Answer: 40 minutes
---------------
Explanation:
The second equation from part A says x = y+45
Because of this, we'll replace the 'x' in the first equation with y+45 and solve for y. I'm using the substitution rule.
So,
x+y = 125
y+45+y = 125 .... replace x with y+45
2y+45 = 125
2y = 125-45
2y = 80
y = 80/2
y = 40 minutes is the amount of time playing golf per day.
==========================================================
Part C
Answer: No it's not possible.
---------------
Explanation:
We found that y = 40 earlier. Let's used this to find x
x = y+45
x = 40+45
x = 85
Therefore, Angela spends 85 minutes playing soccer everyday. It's close to 80 minutes, but not quite there. So it's not possible that she spent 80 minutes playing soccer everyday.
Another way to show this is to say x+y = 80+40 = 120 which is five minutes short of the 125 minute goal.