Reducing
30-30*0.3=
21
21+21*0.05=22.05
A pen costs twice as much as a pencil. If 7 pens and 12 pencils cost $6.50, find the cost of a pencil.
I know the answer (pencil $0.25, pen $0.5), but I need to figure out how the answer is solved.
1. Observe the problem
2. Make a system of linear equations
x is pens
y is pencil
As stated in the text, x=2y
x=2y
7x+12y=6.50
Using substitution,
7(2y)+12y=6.50
14y+12y=6.50
26y=6.50
y=0.25
Substituting it back into the first equation:
x=2(0.25)
x=0.5y=0.25what’s the answer to this problem?
Hey there!
2^5 /6^5
2^5
= 2 * 2 * 2 * 2 * 2
= 4 * 4 * 2
= 16 * 2
= 32
6^5
= 6 * 6 * 6 * 6 * 6
= 36 * 36 * 6
= 1,296 * 6
= 7,776
= 32 / 7,776
= 32 ÷ 32 / 7,776 ÷ 32
= 1 / 243
≈ 2^5 × 6^-5
Therefore, your answer is: 2^5 × 6^-5
(Option D.)
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Big Red Gymnastics Academy charges an initial fee of $ 200 to rent its gym for birthday parties. The academy then charges an additional $75 per hour. Write an equation that gives the total cost of the gym as a function of gym time (in hours).
A. y= 75x - 200
B. y= 200x + 75
C. y= 75x + 200
D. y= 200 - 75x
Answer: C. y= 75x + 200
Step-by-step explanation:
Since they charge $75 an hour x represents the house and they charge an initial fee of $200 so you add that to the $75 an hour
Answer:
C
Step-by-step explanation:
The equation y = mx + b helps use to solve this type of problem
We know the initial amount to rent the gym is $200, that will be our b for this case since it is the y-intercept. This is the y-intercept since that is the initial amount.
The slope for this equation will be 200 represented by m. The key term that represents this is out slope is per. "$75 per hour." Since the function is in hours we don't need to convert hours into another unit.
Now if we plug in the variables, we get the equation y = 75x + 200 which is what C is.
What is the greatest common factor, GCF , of 238 and 462?
A. 2
B. 7
C. 14
D. 21
Answer:
c.14
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
To get the Greates Common Factor (GCF) of 238 and 462 we need to factor each value first and then we choose all the copies of factors and multiply them:
238: 2 7
462: 2 3 7
GCF: 2 7
The Greates Common Factor (GCF) is: 2 x 7 = 14
I need help with this problem
Answer:
U = 126°
Step-by-step explanation:
Assuming the figure is a parallelogram, opposite angles are congruent, and adjacent angles are supplementary.
V = T
10x -6 = 8x +6 . . . . substitute for V and T
2x = 12 . . . . . . . . . add 6-8x
x = 6 . . . . . . . . . divide by 2
Then V = 10(6)-6 = 54, and U is ...
U = 180° -54°
U = 126°
PLEASE HELP W THIS WILL GIVE BRAINLIST TO BEST ANSWER AND EXTRA POINTS
!!!!!ONLY A!!!!
Answer: 1545
Step-by-step explanation: not 100 but i hope this helps you :D
Solve. This for me I need help!
Answer:
D) 53°
Step-by-step explanation:
Angles AEB and BEC are supplementary.
This means they add up to 180°.x + 127 = 180Step 1: Subtract 127 from both sides.
[tex]x+127-127=180-127[/tex]x + 127 - 127 = 180 - 127x = 53Therefore, the answer is 53°.[tex]x+127-127=180-127[/tex]
Which set of ordered pairs does not represent a function
Answer:
The last one (-2,-6),(-1,2),(-2,-7),(6,6)
Step-by-step explanation:
Because there are no pairs with the same x value
Answer:
(D) { (-2, -6), (-1,2), (-2, -7), (6,6)}
Step-by-step explanation:
Guide :-functions do not have the same x
:- SolutionAnswer : D
{ (-2, -6), (-1,2), (-2, -7), (6,6)}
Because the set has two the same x, i.e. -2
(-2,-6) and (-2, -7)
____________________
Find the values of x and
and y
Answer:
y is 90 and x is 180
Step-by-step explanation:
hope this helps srry if its wrong ;-;
16. An initial investment of $10,000 grows at 11% per year. Calculate its value after 5 years.
Show work please
Answer:
16850.58 (2DP)
Step-by-step explanation:
Compound Interest Formula = P(1 + [tex]\frac{r}{100}[/tex])^t
P = 10,000
Rate = 11%
Time = 5 years
10000(1.11)^5 = $16850.58
2p^1/3=6 find the value pf p
Answer:
27
Step-by-step explanation:
Jan has ridden 357 miles of the Tour de France bicycle race and is 17% finished with the race.
Answer: 2100
Step-by-step explanation:
Portional
Answer:
2099.88 Rounded: 2100
Step-by-step explanation:
100/17 = 5.88
337 X 5.88 = 2099.88
Rounded: 2100
Have a good day!
Put these into Slope-Intercept Form
x – y = –2
x – y = –4
Answer:
y=x+2
y=x+4
slope intercept form is y=mx+b
AlMarai, a beverage company is planning to change its juice package size. Currently, there are 9 ounces of juice in each package. The new package will contain 14 ounces. What percent more juices will be in the new package
The percentage of more juices that will be in the new package is 35.71%
What are word problems?Word problems in mathematics are things happening in our daily life and we can use mathematical concepts and arithmetic operations to put a solution to those things.
From the given information, it was stated that:
Almarai usually have 9 ounces of juice in each package, whileTheir new package will contain 14 ounces.Our objective is to find the percentage of more juice that will be in the new package.
The percentage of more juice in the new package will be:
[tex]\mathbf{=\dfrac{14 - 9}{14} \times 100 \%}[/tex]
[tex]\mathbf{=\dfrac{5}{14} \times 100 \%}[/tex]
= 35.71%
Learn more about word problems here:
https://brainly.com/question/21405634
Please answer my question, its in the image.
Answer:
6 4/9
Step-by-step explanation:
[tex]\frac{4}{9} + 5 * 2 - 4[/tex] [tex]\frac{4}{9} + 10 - 4[/tex] [tex]10\frac{4}{9} -4[/tex] [tex]6\frac{4}{9}[/tex]Answer:
6 4/9
Step-by-step explanation:
i hope this help have a nice day
Find the slope of the graph below
(1.1)
(3,0)
3
Oo
0-1/2
2/1
Is it likely that a randomly selected student in the 7th grade from this group will have a math grade equal to or greater than 75? Explain your answer.
1 Look at the figure
289 cm
15 cm
15 cm
Which of the following correctly completes
the diagram to represent the Pythagorean
Theorem?
4 cm
cm
AO
because 289 - 15% - 2
22 cm
B
22 cm
because 289 +15-22
12 cm
12 cm
с
because 289 -15+ 122
D
cm
because 289 - 82 + 15
Answer:
D. 8-cm square
Step-by-step explanation:
The smaller square shown on the figure has an area of 15×15 = 225. The sum of the two smaller square areas must equal the larger square area, so the smallest square must have an area of ...
289 -225 = 64
Its side dimensions will be √64 = 8 cm.
The diagram is correctly completed by the 8 cm square.
Please help me I need it
Answer:
112%
Step-by-step explanation:
percentage change value formula
c2 = X2 - X 1 X 100
X1 1
WHERE,
C2 = RELATIVE VALUE
X2 = FINAL VALUE ( TODAY'S VALUE) = 32,860
X1 = INITIAL VALUE (1992 VALUE) = 15,500
PERCENTAGE CHANGE = 100
C2 = 32860 - 15500 X 100
15500 1
= 17, 360 X 100
15,500 = 1.12 X 100 = 112%.
Samuel and Jacob divided £87 in the ratio 3:7. How much did Samuel get.
Answer:
Samuel get £ 26.1
Step-by-step explanation:
Data :
Money = £ 87
Ratio = 3 : 7
Ratio 3 + 7 = 10
87/10 = 8.7
Samuel has 3 ratio
8.7 × 3 =26.1
Help please !!!!!!!!!!
Answer: Yes
Step-by-step explanation:
Yes, since the square root of an integer (which is a real number), is a real number.
What is the best estimate for the sim of 3/8 and 1/12
The best estimate for the sum of the given fractions is; ¹¹/₂₄
What is the sum of both fractions?
We want to find the sum of the fractions 3/8 and 1/12.
This is expressed as;
³/₈ + ¹/₁₂
Factorizing 1/24 out, we will have;
¹/₂₄(9 + 2)
⇒ 11(¹/₂₄)
⇒ ¹¹/₂₄
Read more about addition of fractions at; https://brainly.com/question/11562149
Krista is building a pen for her bunny.
She’s planning to make it 5 feet long and 4 1/2
feet wide. She would like to build one with an
area 3 times as big as this, but she doesn’t have
the room. How long would the pen be if she could
make one that size? What would the area be?
What is the area?
Answer:
The area of the pen would be 15 feet long :)
Step-by-step explanation:
1 1/2 divided by (4 1/2- 5 1/8) =?
Answer:
12
Step-by-step explanation:
4 1/2 - 5 1/8 =5/8 divided by 7 1/2 = 120/10 which is simplified as 12
Which are perfect squares? Check all that apply.
•72
•36
•8
•16
•81
•64
•48
Answer:
64, 16, 36, 81Step-by-step explanation:
[tex]\sqrt{16} = 4[/tex][tex]\sqrt{36} = 6[/tex] [tex]\sqrt{64} = 8[/tex][tex]\sqrt{81} = 9[/tex]Answer:
Step-by-step explanation:
.36 = .6^2
.16 = .4^2
.81 = .9^2
.64 = .8^2
Part 1 of 12
The table below shows the length and weight of a species of fish. Complete parts (a) and (b).
Red Length (in.)
Weight (lb)
Fish Lengths and Weights
4
6
8
1.24 1.45 1.70
10
1.99
12
2.33
(a) Find an exponential model for the data.
1)
The exponential model for the data is y=
(Use integers or decimals for any numbers in the expression. Round to three decimal places as
Frr
The exponential function is given by y = 0.9(1.082)ˣ
Exponential function
An exponential function is in the form:
y = abˣ
where y, x are variables, a is the initial value of y and b is the multiplier.
Let y represent the fish weights at x inches.
Using point (4, 1.24):
1.24 = ab⁴ (1)
Using point (10, 1.99):
1.99 = ab¹⁰ (2)
From equation 1 and 2:
b = 1.082, a = 0.9
The exponential function is given by y = 0.9(1.082)ˣ
Find out more on Exponential function at: https://brainly.com/question/12940982
Find the cost of leveling a badminton court 132m long and 58 m broad at the rate of Rs. 80 per sq. m.
Answer:
Rs. 612,480
Step-by-step explanation:
Hi there,
Here the question asks us to find the cost of leveling a badminton court at the rate of Rs.80 per sq..
So by the word leveling we know that we have to find the area of the court in order to proceed further.
(I am assuming the court to be rectangular in shape).
Area of a rectangle = Length * Breadth
*Length = 132 meters
*Breadth = 58 meters
==> 132*58= 7656 m^2
So now that we got the area of the badminton court lets find the cost of leveling it ==>
Cost of leveling per meter^2 = Rs. 80
Area = 7656 m^2
==> 7656 * 80 = 612,480
So the cost would be Rs. 612,480
If you found this answer helpful please mark me as brainliest.
Aiden has a coin collection. He keeps 7 of the coins in his box, which is 20% of the collection. How many total coins are in his collection?
Answer:
Total coins are in his collection is 35 coins
Step-by-step explanation:
In his box = 7 coins
7 coins is 20% of the collection.
Total Coins :
7 ÷ 20%
[tex] \tt7 \div \frac{20}{100} [/tex]
[tex] \tt{7 \times \frac{100}{20} }[/tex]
[tex] \tt{7 \times 5}[/tex]
35 coins
Proof :
35 × 20%
35 × 1/5
35 ÷ 5
7
Im having a rough day so just please dont put links or files..
Answer:
The answer is 9
Step-by-step explanation:
I hope you have a better day! ;)
Answer:
9
Step-by-step explanation:
Because 3^2 is 3*3
that gives you 9
Simplify the following ratios: 2.1.1) 140:24
Answer:
35/6
Step-by-step explanation:
We have, 140:24
Dividing by 4 we get 35:6
As there is no other common factor to divide with, 35:6 is the simplest form.