The combine equation that represents the information in this problem is as follows;
n + d = 11
5n + 10d = 70
He has only nickel and dimes in his pocket. The total number of coins is 11 coins. The total cost is 70 cents.
let
n = number of nickels in his pocket
d = number of dimes in his pocket
1 nickel = 5 cents
1 dime = 10 cents
Therefore,
Total number of coins:n + d = 11Total cost of the coins5n + 10d = 70Therefore, the combine equation is as follows:
n + d = 11
5n + 10d = 70
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3/4c-7/12+7/24c+2/3-1/6c
simplify the expression
The simplification of the given expression (3/4)c - 7/12 + (7/24)c + 2/3 - (1/6)c is (21/12)c + 1/12.
What is an expression?A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
As per the given expression,
(3/4)c - 7/12 + (7/24)c + 2/3 - (1/6)c
Combined likely terms,
⇒ (3/4)c + (7/24)c - (1/6)c - 7/12 + 2/3
⇒ (3/4 + 7/24 - 1/6)c + 2/3 - 7/12
⇒ [(18 + 28 - 4)/24]c+ (8 - 7)/12
⇒ (42/24)c + 1/12
⇒ (21/12)c + 1/12
Hence "The simplification of the given is (21/12)c + 1/12".
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1. Find the percent markup.
Markup ($) = percent markup (%) x original cost ($)
A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?
The percent markup is: _________%
[tex] \mathbb{ \ \underline{ \: \: ANSWER : }}[/tex]
1. Find the percent markup.
Markup ($) = percent markup (%) x original cost ($)
A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?
The percent markup is: 90 %
[tex] \mathbb{ \ \underline{ \: \: SOLUTION : }}[/tex]
FORMULA: Percent of Markup = Markup/Cost x 100
= $570/$635 x 100= 0.90 x 100= 90%Question about finding intercepts from a table. Hope someone can answer!
What is the perimeter of a square with a side length of 14 m?
A. 46 m
B. 56 m
C. 70m
D. 196 m
Answer:
56m..................
Pls help i don't get this
Ron's bike travels 500 meters when his wheels rotate 50 times. What is the circumference of his wheels?
Answer:
10 meters
Step-by-step explanation:
C = D/N
Circumference = Distance / Number of Rotations
Answer:
10 meters
Step-by-step explanation:
500 meter divided by 50 is 10 metters making the circumfrerence of his wheel 10 meters
I need help with this question
Answer:
c
Step-by-step explanation:
Sam has saved 140 sand dollars and wants to give them away equally to n friends. Write an expression to show how many sand dollars each of Sam's friends will receive.
Answer:
The answer is B. Equal distribution of the dollars would be to divide by how many friends there are.
A school assembly had 600 students in attendance, and 35% of them were first-graders. How many first-graders were at the assembly?
can u also list the formula on how to do this while ur at it pls and ty
Answer:
210 Were First Graders
Step-by-step explanation:
35 percent of 600 is the same as 35 per hundred of 600. We can therefore make the following equation:
35/100 = X/600
To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 600, and then finally divide the numerator by the denominator on the right side to get the answer. Here is the work to illustrate:
35/100 = X/600
X/600 = 35/100
X*600/600 = 35*600/100
X = 21000/100
X = 210
The work above shows the long way to explain how to calculate 35 percent of 600 in order to give you a foundation and better understanding of how to calculate percentage. In the future, you could use this simplified formula:
(Y * P)/100
In our problem "What is 35 percent of 600?", Y is 600 and P is 35:
(600 * 35)/100 = 210
And once again you see that the answer is 210.
Answer:
210 kids
Step-by-step explanation:
So the formula is basically part over whole is equal to x/100%
So for here it would be x/600 = 35/100
Solve that and you will get 210
A middle school has an oval track with the dimensions shown. What is the distance around the track? use 3.14 for π. show your work.
The distance around the oval track would be 556.9 m which is the sum of the perimeter of the square and the circumference of the semi-circles.
What is the Circumference of a circle?The Circumference of a circle is defined as the product of the diameter of the circle and pi.
C = πd
where 'd' is the diameter of the circle
We have to determine the distance around the track
The required distance is equal to the sum of the perimeter of the square and the circumference of the semi-circles.
A middle school has an oval track with the dimensions shown.
Here the length of a side of the square = 78 m
And the diameter of the circle = 78 m
the distance around the track = perimeter of square + circumference of the circle
the distance around the track = 4 × 78 + π × 78 / 2 + π × 78 / 2
the distance around the track = 4 × 78 + π × 78
the distance around the track = (4 + π) × 78
the distance around the track = (4 + 3.14) × 78
the distance around the track = 7.14 × 78
the distance around the track = 556.9 m
Therefore, the distance around the oval track would be 556.9 m.
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Which statement about the graph is true?
1 ,The graph shows a proportional relationship because it is a line, and the difference between each point is the same.
2, The graph shows a proportional relationship because it is a line, and each x-value is a multiple of 2.
3 , The graph does not show a proportional relationship because each point written as a ratio gives a different value.
4, The graph does not show a proportional relationship because a line that increases by 1 in the y-value cannot have a constant of proportionality.
Answer:
4
Step-by-step explanation:
i just know
wich data set could be repersented by the blox plot shown down below?
pick a b c or d
1/7 of ___ is 1/35
help me plz :)
The value of unknown number would be equal to 1/5
How can we interpret the division?When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get. Division can be interpreted as equally dividing the number that is being divided into total x parts, where x is the number of parts the given number is divided.
We need to find the unknown number.
A negative divided by a negative is positive, then;
1/7 of x is 1/35
1/35 divided by 1/7
1/7 of x 1/5 = 1/35.
x = 1/5
Therefore, The value is x = 1/5
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A line passes through (3, 7) and (6, 9). Which equation best represents the line?
y = 3/2x + 5
y = 2/3x + 5
y = 3x + 2
y = 2/3x + 2
Answer:
y=2/3x + 5
Step-by-step explanation:
please answer!!!
( 10 points)
Answer:
120 miles/6 gallons = 20 mpg
(20 mpg)(g gallons) = 480 miles
g = 24 gallons
i never learned fractions… plz help
Answer:
3/10 ÷ (-4/5) = 3/8 and then for the bottom one is -1 7/8 and for the one in the right is 6 2/5
PLEASE HELP!
You are camping and have only a 3 cup container and a 5 cup container. You need to measure 1 cup of water into a pot. How can you do this? Is there more than one way? Explain.
Answer:
Step-by-step explanation:
If complete precision is not needed:
1. Fill the 5 cup container with water.
2. Pour out just enough into the 3 cup container to fill it.
3. The water left in the 5-cup container will measure 2 cups.
4. Estimate half of this two cups of water.
i really need help someone answer pls
Answer:
(4)The lowest common denominator of 3 and 8 is 24.
(5) The lowest common denominator of 5 and 10 is 10.
(6) The lowest common denominator of 7 and 3 is 21.
(7) The lowest common denominator of 4 and 5 is 20.
(8) The lowest common denominator of 2 and 12 is 12.
(9) The lowest common denominator of 15 and 5 is 15.
Hope this helped! :)
Find the GCF of 24 and 108.
Answer:
12 is the greatest number that 24 and 180 divides into
Here is the question...
1/3n<-9
Answer:
" all numbers less than -27 "
Step-by-step explanation:
The instructions for this problem most likely go like this: "solve the following identity." In other words, find an inequality for n.
Start by multiplying both sides of the given inequality by 3, to eliminate the fraction 1/3:
n < -27
The solution: " all numbers less than -27 "
Help ..
Sandy works at a clothing store. She makes $8 per hour plus earns 10% commission on her sales. She worked 70 hours over the last two weeks and had a total of $1,612 in sales before taxes.
Which of the following is closest to how much she will earn in hourly wages and commission for those two weeks?
A.
$721
B.
$560
C.
$161
D.
$217
Answer:
A
Step-by-step explanation:
First, I'm going to work out the hourly wages for the 2 weeks.
$8 x 70hours = $560
(8 x 7 = 56 x 10 = 560)
Next, work out the commision.
10% of $1612
1612 ÷ 10 = 161.2
Finally, add together both the hourly wages and commision.
161.2 + 560 = 721.2
Round it down to a whole number.
721 , Add on the dollar sign.
It's answer A, $721.
what’s the area of this figure? lol i have no idea helppp
Answer:
285
Step-by-step explanation:
For the top section, we can portion out 20 x 8 = 160.
Next, directly in the middle is a 5 x 5 square = 25.
Finally, we have a right triangle with dimensions 10 x 20 so the area would be 10 x 20 / 2 = 100.
160 + 25 + 100 = 285.
Answer:
take all the numbers and multiply...
Step-by-step explanation:
the table shows, step-by-step, how to simplify the algebraic expression 3 (x- 5) + 4x. Justify step 4.
A) Multiply
B) Commutative property
C) Combine like terms
D) Associative Property
Answer: C , combine like terms
Step-by-step explanation:
35 is 20% is what number ANSWER FAST!!!!!
Please show work with double number line Thanks.
Answer:
175
Step-by-step explanation:
The diameter of each wheel of the car is 80 cm. How many complete rounds does each wheel rotate in 10 minutes when the car is moving at 60 km / h?
Answer:
The answer is 140cm
Which number line best shows how to solve -4 - (-8)?
Screen Shot Below If U Need It!
Answer:
The answer is the 3rd option
Step-by-step explanation:
As -4 -(-8)
= -4 +8
= 4
Please mark. as brainliest
Answer:
B
Step-by-step explanation:
One lower arrow is going all the way to the Four.
While |-8| = 8.
So it has it pointing to the 8. This means that 8 - -4 = 12
HELP ME PLEASEEEE ASAP
Answer:
C
Step-by-step explanation:
Remember that you flip the signs whenever you divide an inequality by a negative.
So here we divide both sides by negative four and then scan the signs to get
x ≥ -8
If Mia can run 15 laps in 24 minutes, how many minutes will it take her to run 20 laps
Answer:
15=24
20=x
cross multiply
15x=24*20
15x=480
divide both sides by 15
x=480/15
x=32
it will take her 32 minutes
Answer:
32 minutes
Step-by-step explanation:
24/15 = 1.6 laps per minute
1.6 * 20 = 32 minutes
A picture shows a roof of a house. It has a right triangle-shaped with the base of 12 feet as span and height of 4 feet as height of roof. The hypotenuse of the triangle is the slope of the roof.
The pitch of the roof is
Answer:
Step-by-step explanation:
Pythagorean Theorem:[tex]a^{2} + b^{2} = c^{2}[/tex]
[tex]12^{2} + 4^{2} = c^{2}[/tex]
144 + 16 = [tex]c^{2}[/tex]
160 = [tex]c^{2}[/tex]
Square root 160
12.6491106 = c
Round to the nearest whole number
13=c
(−4)+(−6)+(−3)+(−1)+0+2+(−1)+(−3)8
Answer:
-15
Step-by-step explanation:
Multiply: (-3)8= -24
Add: -4+6+3+1+0+2+1= 9
Subtract: 9-24= -15
Answer:
-37
Step-by-step explanation:
Last week's and this week's low temperatures are shown in the table below.
Low Temperatures for 5 Days This Week and Last Week
Low Temperatures
This Week (°F)
4 10 6 9
Low Temperatures
Last Week (°F)
13 9 5 8
6
5
Which measures of center or variability are greater than 5 degrees? Select three choices.
the mean of this week's temperatures
the mean of last week's temperatures
the range of this week's temperatures
the mean absolute deviation of this week's temperatures
the mean absolute deviation of last week's temperatures
Answer:
B, E, and D.
Step-by-step explanation:
These three measures or variability are greater than 5°F.
hope this helped.