Answer:
36 black keys
Step-by-step explanation:
9(88-x)=13x
792-9x=13x
792=22x
x=36
Hope this helps: )
Lakmini decided to measure the circumference of the Earth
using a very long tape measure. She held the tape measure
Im from the surface of the (perfectly spherical) Earth all the
way round. When she had finished her friend said that her
measurement gave too large an answer and suggested taking
off 6 m. Was her friend correct?
[Take the radius of the Earth to be 6400 km (if you need it).]
Answer:
Step-by-step explanation:
[tex]\Delta C=2\pi(r_2-r_1)\\ \\ \Delta C=2\pi(6400001-6400000)\\ \\ \Delta C=2\pi\\ \\ \Delta C\approx 6.283m\\ \\ \text{So taking off 6 meters is reasonable.}[/tex}
(At6) √2
Solve the equation
Answer:
[tex] {at}^{6} \sqrt{2} [/tex]
Step-by-step explanation:
1) Remove the parentheses.
[tex] {at}^{6} \sqrt{2} [/tex]
question : Find 23% of 700kg
Answer:
[tex]700kg \times \frac{23}{100} \\ = 161[/tex]
Answer:
161 kilograms
Step-by-step explanation:
change 'of' into a multiplication sign
23% × 700kg
change 23% into a decimal
0.23 × 700kg= 161
sea f(x)=3x3+5x, calcule f(5) + f(3)
Answer:
496
Step-by-step explanation:
steve walks 3 kilometers a day how many meters does he walk in 3 days??
Answer:
9,000 m
Step-by-step explanation:
1 km = 1,000 m
3 * 3 = 9 km
9 * 1,000 = 9,000 m
Answer:
9000m in 3 days.
hope it helps.
SOMEONE PLEASE HELP ME...
If k=
[tex] log_{2}(3) [/tex]
Rewrite
[tex] log_{2}(48) [/tex]
in terms of k.
9514 1404 393
Answer:
k+4
Step-by-step explanation:
48 = 16×3 = 2^4×3
log2(48) = log2(2^4) +log2(3)
log2(48) = 4 + k
What is the volume for this triangular prism if the base of the triangle is 8 the height is 16 and the height for the triangle is 7
Answer:
Volume of the triangular prism = 448 cm³
Step-by-step explanation:
Volume of the triangular prism = Area of the triangular base × Height of the triangular prism
Area of the triangular base = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
= [tex]\frac{1}{2}(8)(16)[/tex]
= 64 units²
Volume of the triangular prism = 64 × 7
= 448 cm³
What is the value of 80-5(x^2-y)+y when x=4 and y=6
Answer:h
Step-by-step explanation:
asap please help i really need it
Answer:
x ≈ 261 ft
Step-by-step explanation:
Using the sine ratio in the right triangle
sin50° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{200}{x}[/tex] ( multiply both sides by x )
x × sin50° = 200 ( divide both sides by sin50° )
x = [tex]\frac{200}{sin50}[/tex] ≈ 261 ft ( to the nearest foot )
x ≈ 261 ft
that is the answer
If y varies directly as x and y = 5.5 when x = 11, find x when y = 3.5
0 x = 7
O x = 6
O x = 1.75
O x = 1.25
Answer:
x=7
Step-by-step explanation:
y=mx
5.5=m×11
5.5÷11=m
m=1/2
y=mx
3.5=1/2×x
3.5÷1/2=x
x=7
Answer:
x =7
Step-by-step explanation:
The direct variation equation is y = kx, where k is the constant of proportionality.
If y = 5.5 when x = 11, we can write 5.5 = 11k, which, when solved for k, yields k = 0.5.
Then the direct variation equation in this case is y = 0.5x.
If y = 3.5, what is x? y = 0.5x becomes 3.5 = 0.5x, yielding x = 7
ABC is dilated by a factor of 1/2 to produce AA'B'C!
helpppppp
Answer:
abc
Step-by-step explanation:
abc
Answer:
B
Step-by-step explanation:
A P E X
Suppose a shoe factory produces both low-grade and high-grade shoes. The factory produces at least twice as many low-grade as high-grade shoes. The maximum possible production is 500 pairs of shoes. A dealer calls for delivery of at least 100 high-grade pairs of shoes per day. Suppose the operation makes a profit of Birr 2.00 per a pair of shoes on high-grade shoes and Birr 1.00 per pairs of shoes on low-grade shoes. How many pairs of shoes of each type should be produced for maximum profit?
Answer:
The factory should produce 166 pairs of high-grade shoes and 364 pairs of low-grade shoes for maximum profit
Step-by-step explanation:
The given parameters for the shoe production are;
The number of low grade shoes the factory produces ≥ 2 × The number of high-grade shoes produced by the factory
The maximum number of shoes the factory can produce = 500 pairs of shoes
The number of high-grade shoes the dealer calls for daily ≥ 100 pairs
The profit made per pair of high-grade shoed = Birr 2.00
The profit made per of low-grade shoes = Birr 1.00
Let 'H', represent the number of high grade shoes the factory produces and let 'L' represent he number of low-grade shoes the factory produces, we have;
L ≥ 2·H...(1)
L + H ≤ 500...(2)
H ≥ 100...(3)
Total profit, P = 2·H + L
From inequalities (1) and (2), we have;
3·H ≤ 500
H ≤ 500/3 ≈ 166
The maximum number of high-grade shoes that can be produced, H ≤ 166
Therefore, for maximum profit, the factory should produce the maximum number of high-grade shoe pairs, H = 166 pairs
The number of pairs of low grade shoes the factory should produce, L = 500 - 166 = 334 pairs
The maximum profit, P = 2 × 166 + 1 × 364 = 696
what is the vertex
x-intercept &
y-intercept
Evaluate
( 2/10 ) ^3
1. 1/5
2. 6/30
3. 8/1,000
Answer:
3. 8/1,000
( I hope this was helpful) >;D
hayley spent 2 1/2 of an hour playing on her phone. that used up 4/8 of her battery. how long would she have to play on her phone to use the entire battery?
Answer:
5 hours
Step-by-step explanation:
4/8 is simply 1/2 and 1/2 times 2 is 1
so 2 1/2 times 2 is 5 hours
The area of the rectangular-shaped lot is 44,075 square feet. The width of the lot is 215 feet. How long is the lot the Mitchells are looking to buy?
Answer:
205 feet
Step-by-step explanation:
44075/215= 205
ax- bx > 2a-2b
solve for x
Answer:
If a<b, x<2
If a>b, x>2
Step-by-step explanation:
ax-bx>2a-2b, (a-b)x>2(a-b)
If a>b, x>2(a-b)/(a-b)=2
If a<b, x<2(a-b)/(a-b)=2
Carol was able to drive her car 300 miles on 12 gallons of gasoline. At this rate, how many miles did she drive using 20 gallons of gasoline
Answer:
500
Step-by-step explanation:
It is hard to expain.
Hope its correct and helps:)
Lisa wants to buy a snowboard that is on sale for 30% off the original price of $180. If the sales tax in Lisa's state is 6%, how much will Lisa pay for the snowboard?
Answer:
$133.56
Step-by-step explanation:
Multiply 180 and .3 and then subtract that number with 180
you should then get 126
multiply 126 by .06 you should get 7.56
Finally add 126 and 7.56 you should get your final price of 133.56
please help me with this i give brainliest.
Answer:
Step-by-step explanation:
[tex]25+12.5v\ge 130\\ \\ 12.5v\ge 105\\ \\ v\ge 8.4[/tex]
Please help! will give brainliest!!
Answer:
For every 1 flip flop, it's $4?
Step-by-step explanation:
I'm not sure what the question is, so I'm just guessing.
Answer:
y = 4x
Step-by-step explanation:
y = profit from flip flops
x = flip flops
4 = constant rate, or slope, of the function
The sum of N terms of an arithmetic sequence with first term as 1 and common difference of 2 is 9801. Calculate the value of N.
Answer:
gngngngngngngngngngng
Answer:
n = 99
Step-by-step explanation:
The sum to n terms of an arithmetic sequence is
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 1 , d = 2 and [tex]S_{n}[/tex] = 9801 , then
[tex]\frac{n}{2}[/tex] [ (2 × 1) + 2(n - 1) ] = 9801 ( multiply both sides by 2 to clear the fraction )
n(2 + 2n - 2) = 19602
n(2n) = 19602
2n² = 19602 ( divide both sides by 2 )
n² = 9801 ( take the square root of both sides )
n = [tex]\sqrt{9801}[/tex] = 99
The number of terms summed is 99
if 20 workers can dig a farm in 240 hours how many workers can dig the same farm in 60 hours
Answer:
5 workers
Step-by-step explanation:
Find how many hours 1 worker can dig 240 / 20 = 12
60 hours / 12 hours = 5 workers.
It takes 5 workers to dig for 60 hours when 20 workers dig for 240 hours.
Answer:5 workers
240/20=12
Step-by-step explanation:
And item is regularly priced at $81. Maria brought it at a discount of 85% off the regular price you say a LEKS calculator to find out how much were you paid
Answer:$12.15
Step-by-step explanation:
Given
The regular price of an item [tex]\$81[/tex]
Maria gets a discount of [tex]85\%[/tex]
Amount paid after the discount is
[tex]\Rightarrow 81(1-85\%)\\\Rightarrow 81(1-0.85)=85(0.15)\\\Rightarrow \$12.15[/tex]
what is the value of 5 in 102,587
HELP ASP!!!
The x value of the solution to the system of equations is_____ and the y-value is_____.
DO NOT ANSWER IF YOU DONT KNOW THE ANSWER.thank you
Answer:
uuruehehejhruebejebehhrrifbfj
Step-by-step explanation:
irj4j4jrbrurbrjrbru=&=&&=&
Answer: i think its anime god
What is the cost difference between 6.75 and 8.75
Find the area of the figure. Use 3.14 for A.
10 m
14 m
The area of the figure is about|
m?
Answer: I think the answer might be 140 square meters
I really hope this helps!
Step-by-step explanation:
A computer game was originally priced at $59.99. It was marked down 15%. What was the final price of the computer game?
Answer: $50.99
Step-by-step explanation:
Given
The computer game is Priced at [tex]\$59.99[/tex]
It is marked down by [tex]15\%[/tex]
Final price is
[tex]\Rightarrow 59.99-15\%\ \text{of}\ 59.99\\\Rightarrow 59.99(1-0.15)=59.99\times 0.85\\\Rightarrow \$50.99[/tex]
Nayan plays different games in the play ground from 6.15 to 7.00 in the morning and
from 7.30 to 8.15 in the evening. So, how long does Nayan play the games?
Answer:
nayan plays for 45 min
Step-by-step explanation:
count up
Answer:
The answer is either 45 minutes or 90 minutes / 1 and a half hours
Step-by-step explanation:
You either add the two times together, as he plays for 45 minutes at one time and another 45 minutes at a later time. I'm not sure if the question is asking for the sum or how much time he plays for as an average because they are both 45 minutes.