Answer:9ft
Step-by-step explanation:
The cost C (in dollars) of making n watches is represented by C = 15n + 85 .
How many watches are made when the cost is $385?
how many watches?
What is the value of x?
Ken bought 2 video games and 1 DVD for a total of $105. Jerome bought 1 video game and 4 DVDs for a total of $80. Which system of equations can be
used to find the cost, in dollars, of each video game (v) and each DVD (d) at the store?
Answer:
I think that the Linear system of equations can be used to find the cost.
Step-by-step explanation:
Answer:
2v + 1d = 105
and
1v + 4d = 80
Step-by-step explanation:
ken : 2v + 1d = 105
Jerome : 1v + 4d = 80
1v + 4d = 80 Try to get a video games by its self
- 4d -4d
1v = 80 - 4d
Plug into kens equation..
2(80 -4d) + 1d = 105
160 - 8d + 1d = 105
-160 -160
-7d = -55
/-7 /-7
d = 7.86 (rounded)
Plug into Jeromes equation
1(7.86) + 4v = 80
- 7.86 - 7.86
4v = 72.14
/4 /4
v = 18.035 (round = 18)
A figure has side lengths as marked in the diagram.
What is the area of the figure?
Answer:
132.4
Step-by-step explanation:
hmm i sure do ask a lot of questions
Answer:
A bc it show that it travels 25 miles to the hour.
In other words Miles per hour= 25 to 1 hour
Step-by-step explanation:
Hope this helps :)
Kathy is making 3 batches of pancakes for a brunch party. If each batch needs 1712 cups of milk, how much milk does she need altogether?
Answer:
5,136
Step-by-step explanation:
because 1,712×3=5,136
1. Does this equation represent growth or decay?
A (t) = 800(1.21)
Answer:Decay
Step-by-step explanation: because of perenthesis
PLEASE HELP MEEEEEEEE
Answer: 4.19
v = 4/3 * 3.14 * 1^3
v = 4/3 * 3.14
v = 4.19
For each equation choose a value for x and then solve
to find the corresponding y value that makes that
equation true. Do not pickx = 0.
1) 6x= 7 and
two) 5 x + 3 and = 9
3) Y + 5 - 13x = 7
Answer:
Step-by-step explanation:
For each equation choose a value for x and then solve to find the corresponding y value that makes that equation true.
PLEASE HELP NOW NOW NOW PLEASE PLEASE HELP
Answer:
$46.00
Step-by-step explanation:
$46.00 - $20 + $5 = $21
Rachel used 18 centimeters of tape to wrap 6 presents. How much tape will Rachel need in all if she has to wrap 15 presents? Solve using unit rates.
centimeters
Answer:
Rachel would need 45cm of tape to wrap 15 presents.
Step-by-step explanation:
Firstly we need to find how much is required to wrap one presnt: 18÷6=3.3cm of tape is needed to wrap one present.
Secondly to find how many she needs to wrap 15 we sinply multiply 15 by three and get 45.
I hope this helps you in any way.
Calculate the volume of liquid that would fill the bowl of the glass. Show all your work.
Answer:
52.36
Step-by-step explanation:
Formula to find volume in a cone is
V = pi • radius^2 h/3
So we fill in the numbers
V = pi •
the radius is half of diameter,
The diameter is 5
So it's
V = pi • 2.5
since it's half of 5
V = pi • 2.5^2 h/3
the height is 8 so we fill it in
V = pi • 2.5^2 8/3
When calculated, you get..
52.36
The volume of the liquid which can fill the bowl of the glass (in shape of cone) with the liquid is 49.74 cm³.
What is of volume of solid?Volume of solid is the amount of quantity, which is obtained by the solid or object in the 3 dimensional space.
The volume of the cone can be given as,
[tex]V=\dfrac{1}{3}\pi r^2\sqrt{l^2-r^2}[/tex]
Here, (r) is the radius of the base of the cone and (l) is the slant height of the cone.
Here, the diameter of the cone is 5 cm. thus the radius of the cone is,
[tex]r=\dfrac{5}{2}\\r=2.5\rm cm[/tex]
The slant height of the cone is 8 cm. Thus, put the value to find the volume of cone as,
[tex]V=\dfrac{1}{3}\pi (2.5)^2\sqrt{(8)^2-(2.5)^2}\\V\cong 49.74\rm cm^3[/tex]
Thus the volume of the liquid which can fill the bowl of the glass (in shape of cone) with the liquid is 49.74 cm³.
Learn more about the volume of solid here;
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I need more help please .....
Answer:
The area is 2,600 cm^2
Step-by-step explanation:
The area of a rectangle is the product of its sides
And the difference between both areas is 1,400 cm^2 (P-Q)
Thus, we have it that;
40(3x-10) - (30(x + 15)) = 1,400
120x - 400 - 30x - 450 = 1400
120x -30x -400-450 = 1400
90x - 850 = 1400
90x = 1400 + 850
90x = 2,250
x = 2,250/90
x = 25
The area for painting P
is;
40 (3x - 10)
Substituting the value 25 for x
we have
40 ( 3(25) -10)
= 40(75-10)
40 * 65 = 2,600 cm^2
what shape is similar to the original shape
Answer c
Step-by-step explanation:
they have to be equivalent
HELPPPPP !!!!!!! Please answer correctly Will mark Brianliest !!!!!!!!!!
Colin and April both thought of six numbers. Colin's first number was 0, and April's first number was 10. Colin added 1 each time to get his other numbers. April subtracted 2 each time to get her other numbers. Which statements are correct? Select three that apply.
Answer:
Step-by-step explanation:
aprils second answer was 8
A rock was thrown from the top of a building. The distance, in feet, between the rock and the ground t seconds after it is thrown is represented by d=-16t squared -4t+382. How long after the rock is thrown is it 370 feet from the ground
Answer:
Step-by-step explanation:
Simplify the expression
Answer:
x12
Step-by-step explanation:
(x*x*x*x*x) *(x*x*x*x*x*x)
Sita bought a sofa set for Rs 30,000 and a dining set for Rs 20,000. He sold the sofa set at a loss of 5% but made a profit of 5% on the dining set. The net result of the transaction is?
Answer: See explanation
Step-by-step explanation:
Sita bought a sofa set for Rs 30,000 and sold the sofa set at a loss of 5%. The loss on the sofa will be:
= 5% × 30000
= 5/100 × 30000
= 0.05 × 30000
= 1500
Selling price of the sofa = 30000 - 1500 = 28500
Sita bought a dining set for Rs 20,000 and made a profit of 5% on the dining set. The selling price of the dining set will be:
= 20000 + (5% × 20000)
= 20000 + (0.05 × 20000)
= 20000 + 1000
= 21000
The cost price of the sofa and dining set will be:
= Rs 20000 + Rs 30000
= Rs 50000
The selling price of the dining set will be:
= Rs 28500 + Rs 21000
= Rs 49500
The net result of the transaction is will be:
Selling price - Cost price
= 49500 - 50000
= -500
There's a net loss of $500
8.sınıf matamatikten hic anlamıyorum yardım edin
Answer:
same
Step-by-step explanation:
Melanie is going to invest in an account paying an interest rate of 5.2% compounded
monthly. How much would Melanie need to invest, to the nearest hundred dollars,
for the value of the account to reach $19,600 in 19 years?
Answer:
7300
Step-by-step explanation:
I got it right
Melanie would need to invest an amount of $7300.
What is Compound Interest?Compound interest is defined as the amount of interest which has been calculated on the principal amount as well as the amount accumulated over the previous period is also included.
The final amount in a compound interest can be calculated using the formula,
A = P (1 + [tex]\frac{r}{n}[/tex] )^(n t)
Here A is the final amount, P is the principal value, r is the rate of interest, n is the number of times interest is compounded per year and t is the number of years.
Given,
A = $19,600
r = 5.2% = 5.2/100 = 0.052
Since it is compounded monthly, n = 12
t = 19 years
Substituting,
19,600 = P (1 + [tex]\frac{0.052}{12}[/tex])^ (12 × 19)
19,600 = P (1.0043)^(228)
19,600 = P (2.68)
P = 19,600 / 2.68
P = 7313.0767 ≈ 7300 to the nearest hundred
Hence the value of the account will reach $19,600 n 19 years if she invest an amount of $7300.
Learn more about Compound Interest here :
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i need help, if you do help please dont put picture thank you!
Answer:
181
Step-by-step explanation:
Area of a semicircle: 1/2 (pi • r^2)
1/2(3.14 • 100)
1/2 ( 314 )
157
Triangle:
(6 • 8) ÷ 2
48 ÷ 2
24
Add the area of the triangle & semicircle together: 157 + 24 = 181
Hope this helps! Have a great day!
Highest common factor of 12 and 18
12
3 4
2 2
3 x 2x 2
18
9 2
3 3
2 x 3 x3
= 6
Answer:
6
Step-by-step explanation:
12 = 4 * 3 = 2 *2 * 3
18 = 2 * 9 = 2*3 *3
Highest common factor = 2 * 3 = 6
0. What percent of 9 is 18? What are you going to solve?
b. percentage
d. decimal
a rate
c. base
pleas help
Answer:
What percent of 9 is 18 = 200% and for the second part it is B.
Step-by-step explanation:
I just know that is the answer.
30% as a decimal round to the thousands place
Answer:
Your answer is 0.300 rounded to the thousands place.
Step-by-step explanation:
Hope this helps!
Given ABC, what is the value of x?
HELP ME PLS THIS IS URGENT
Answer:
x=35
Step-by-step explanation:
We know that sum of angles in a triangle=180
120
o
+25
o
+x=180
145
o
+x=180
o
x=35
o
Giving brainliest to whoever comments the right answer first
Answer:j
Step-by-step explanation:
Alyson opened a savings account with
$100. She saves $50 per month. Which
equation shows how many months, m,
Alyson will have to save to have a total of
$250 in her account?
Answer:
100 + 50m = 250
50m = 250 - 100
50m/50 = 150/50
m = 3
Alyson will have to save for 3 months to have a total of $250.
can you solve this? what is sin 60
Answer:
Yo the answers B
√3/2
Step-by-step explanation:
DIRECTIONS: BELOW ARE NUMBERS EXPRESSED IN EXPONENTIAL NOTATION. GIVE THE VALUE OF EACH EXPONENTIAL NOTATION.
1. 4³ =
2. 6⁴ =
3. 25 =
4. 5² =
5. 3⁴ =
Answer:
1) 4 × 4× 4 = 64
2) 6⁴ = 1296
3) 25 = 25
4) 5² = 2
3) 3⁴= 81