Answer:
The price of the sweater was reduced by 40%.
please help me ill mark you brainliest and please show your work :)
Find the degree measure of the angle expressed by 11x-6.
Answer:
Won't it just be 60, because it's an equilateral triangle.
Step-by-step explanation:
60 + 60 = 120
180 - 120 = 60
11x - 6 = 60
11x = 66
x = 66/11
x = 6
Let's substitute.
11(6) - 6 = 66 - 6 = 60
Subtract x – 2y from the sum of -3x + 5y -3z and 2x -7y + 3z
Answer:
-3x+5y-3z + 2x-7y+3z
= -x-2y
= x-2y-(-x-2y)
= x + x +2y-2y
= 2x
Complementary and Supplementary Angles
Answer: See explanation
Step-by-step explanation:
1. Complementary (adds up to 90°)
2. Neither
3. Supplementary (ads up to 180°)
4. Adds up to 90° since its complementary
22 + 4x = 90
Subtract 22 from both sides
4x = 68
Divide both sides by 4
x = 17
5. Adds up to 90° since its complementary
65 + x + 2 = 90
x + 67 = 90
Subtract both sides 67
x = 23
6. Adds up to 90° since its complementary
43 + x - 7 = 90
x + 36 = 90
Subtract both sides by 36
x = 54
7. Adds up to 180° since its supplementary
29 + x - 5 = 180
x + 24 = 180
Subtract both sides by 24
x = 156
8. Adds up to 180° since its supplementary
110 + 7x = 180
Subtract both sides by 110
7x = 70
Divide both sides by 7
x = 10
9. Adds up to 180° since its supplementary
72 + x + 4 = 180
x + 76 = 180
Subtract both sides by 76
x = 104
10. Adds up to 90° since its complementary
49 + x + 3 = 90
x + 52 = 90
Subtract both sides by 52
x = 38
11. Adds up to 180° since its supplementary
92 + x + 78 = 180
x + 170 = 180
Subtract both sides by 170
x = 10
12. Adds up to 180° since its supplementary
19 + x - 50 = 180
x - 31 = 180
Add 31 to both sides
x = 211
13. Supplementary angles add up to 180°
∠C + ∠D = 180
∠C + 45 = 180
Subtract both sides by 45
∠C = 135°
Hope I helped!
At a summer camo 23 of the boys and 17 of the girls can swim. There are 9 boys and 11 girls at the camp who cannot swim. What is the ratio of the number of children who can swim to the number of children who cannot swim
Answer:The ratio of the number of children who can swim to the number of children who cannot swim=2:1
Step-by-step explanation:
Number of children that can swim = N umber of boys and girls that can swim =23+17 =40
Number of children that cannot swim = N umber of boys and girls that cannot swim=9+11=20
=40:20
=2:1
Solve
5x+y=-17 8x-3y=-18
Answer:
x = -3
y = -2
Step-by-step explanation:
Answer:
( x,y ) = ( 72/163,-3294/163
write the following using algebraic notation, using the letter x for any unknown numbers. i think of a number, double it, then add 9
Answer:
2x+9
Step-by-step explanation:
I hope this helps :)
HURRYYY A company is introducing a new product. The equation y = –0.001(x – 600)2 + 90 predicts the expected profit, in thousands of dollars, where x represents the number of thousands of units of the product sold by the company. How many units must be sold to yield a maximum profit? 90 600 90,000 600,000
Answer:
d
Step-by-step explanation:
^u^
The amount of units that must be sold to a number yields a maximum profit is 600. Hence 600 units will be the correct option.
How to find maxima?To find the maxima of any function it needs to differentiate with respect to the dependent variable and equate with zero to get stationary points.
After achieving the stationary points it needs to put on the double derivative of that function to check whether it's maxima or minima.
If the double derivative got negative then it will be maxima.
Given that function
f(x) = -0.001(x-600)² + 90
By differentiation
[tex]$f'(x)$[/tex] = -0.002(x - 600) + 90
Now equate with zero
-0.002(x - 600) + 90 = 0
x - 600 = 0
x = 600
Now checking the x at double derivative
[tex]$f''(x)$[/tex] at x = 600 it is coming out to -0.002 which is negative Hence, the 600 units will be the correct answer.
For more about maxima
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Jasmine planted a 5-foot tree. After one year, she measured it and found out that the tree had grown 20% of its original height. How tall was the tree after one year. Pleade help very confused
Answer: 6 foot
Step-by-step explanation:
You want to use the equation
5(n)
n will be 0.20 since the tree grew by 20% of its original height
5(0.20)=1
Now add 1 with 5
1+5
6
Answer:
6.0 ft
Step-by-step explanation:
20% of 5.0 ft is 1.0 so you add, 1.0ft+5.0ft=6.0ft
PLEASE HELP!!!! ILL GIVE BRAINLIEST!!!!!!!
need to graph it then find the area of the triangle
Answer:
area is 9
see picture for points
Step-by-step explanation:
base is 6
height is 3
6 * 3 /2 = 9
Write the word sentence as an inequality. Then solve the inequality.
The product of −2 and a number x is greater than 30.
Step-by-step explanation:
divide by 2 then reverse
5/9 if a number is 65 find the number
Answer:
117
Step-by-step explanation:
Required number
[tex] = 65 \times \frac{9}{5} \\ \\ = 13 \times 9 \\ \\ = 117[/tex]
hey guys help me with this
and pls explain your answer
Answer:
720
Step-by-step explanation:
in an all year is 8760
will mark brainiest, please explain
Imagine cutting this shape into two semi-circles and one rectangle.
------------------------------------------------------------------------------------------------------
Each semi-circle has a diameter of 36 metersThe radius would be (36/2) = 18 meters.--------------------------------------------------------------------
We know the area of a whole circle which is π[tex]r^{2}[/tex]
The formula of area of a semi-circle: 1/2(π[tex]r^{2}[/tex])because a semi-circle is basically half of the whole circle!
However, since we have two equal semi-circles...we can just put them together and solve for the whole circle's area.
for reference:
1/2(π[tex]r^{2}[/tex]) + 1/2(π[tex]r^{2}[/tex]) = 2/2(π[tex]r^{2}[/tex]) = π[tex]r^{2}[/tex]
----------------------------------------------------------
First, the area of rectangle: length times width = 84 x 36 = 3024 square meters
Anyways, since we have to sub in 3.14 for π
Area of a whole circle: (3.14 x [tex]r^{2}[/tex]) = (3.14 x [tex]18^{2}[/tex]) = 1017.36 square meters
-----------------------------------------------------------
3024 + 1017.36 = 4041.36 square meters
ANSWER: J
Anything raised to a power of zero is always:
Answer:
1
Step-by-step explanation:
u cant really multiply anything so it 1
Multiply. Express your answer as a fraction in
simplest form.
8.33 x 144
HELP PLEASE HELP PLS HELP THIS WORK NEED TO BE FINISH HELP ME WITH IT WILL BE REWARD BRAINLIEST AND WILL GIVE 100 PIONT FOR FREE!
Answer:
The simplified expression is 498,400÷7. The value is 71,200.
Step-by-step explanation:
712×25×14×2= 498,400.
498,400÷7 becomes our expression. And that answer is 71,200. I hope this helps
Answer:
Step-by-step explanation:
substitute
a + 2p = 4
x − 2y = 6
Joshua bought one pound of strawberries for $3.20. What is the price, in dollars per ounce of strawberries?
\text{1 pound}=
1 pound=
\,\,\text{16 ounces}
16 ounces
Before you try that problem, answer the question below.
How many ounces of strawberries did Joshua buy?
HELP 10
Answer:
0.20 dollar per oz and Joshua brought 16 oz of strawberry
Step-by-step explanation:
1 lbs = 16 oz
3.20÷ 16
= 20 cent
20 cent per one ounce of strawberry
1 cent = 0.01 dollar
20 cent = 20 × 0.01
20 cents = 0.2 dollar
can someone solve 5x − 7 = 13 step by step
(instructions: Add 7 to both sides: 5x = 20
Divide both sides by 5: x = 4)
Like the example below
Answer:
x=4
Step-by-step explanation:
5x-7=13
5x=13+7
5x=20
x=20/5
x=4
Answer:
x = 4
Step-by-step explanation:
5x - 7 = 13
add 7 to both sides:
5x - 7 + 7 = 13 + 7
5x = 20
divide both sides by 5
[tex]\frac{5x}{5} = \frac{20}{5}[/tex]
x = 4
factor [tex]x^{2}[/tex]- 16
Answer:
(x - 4)(x + 4)
Step-by-step explanation:
x² - 16 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
x² - 16
= x² - 4²
= (x - 4)(x + 4)
My three cars can travel the same distance on a tank of gas. My second car gets 6 kilometers per liter more than
my first, but its tank holds 3 fewer liters than my first. My third car gets 6 kilometers per liter less than my first, but its tank holds 6 more liters
than my first. How many kilometers can each car travel on a tank of gas?
Answer:
16
Step-by-step explanation::
wrote on NEML, got it right,
Distance traveled by an car is the ratio of the mileage gives by the car to the total fuel the tank holds. The millage of 6 kilometre per liter in 3 liter the cars can travel 18 kilometre.
Given information
All three cars can travel the same distance on a tank of gas.
The second car gets 6 kilometres per liter more than the first, but its tank holds 3 fewer liters than the first.
The third car gets 6 kilometres per liter less than the first, but its tank holds 6 more liters than the first.
Suppose the first car runs m. kilometre per liter. Then the second car will run (m+6) kilometre per liter and third car runs (m-3) kilometre per liter.
Suppose the first car has l liter in the tank. Then the second car has (l-3) liter and third car has (l+6) liters in her tank.
DistanceDistance traveled by an car is the ratio of the mileage gives by the car to the total fuel the tank holds.
As the distance traveled by the first car is same as the second one. Hence,
[tex]\begin{aligned}\\\dfrac{m}{l} &=\dfrac{m+6}{l-3} \\ml-3m&=ml+6l\\m&=-2l\\\end[/tex]
Let the above equation is equation 1.
As the distance traveled by the second car is same as the third one. Hence,
[tex]\begin{aligned}\\\dfrac{m-3}{l+6} &=\dfrac{m+6}{l-3} \\ml-3m+9-3l&=ml+6l+6m+36\\l+m&=-3\\\end[/tex]
Put the value of m in the above equation from equation 1,
[tex]l-2l=-3\\l=3[/tex]
[tex]m=2\times3=6[/tex]
Thus the value of the m is 6.
With the millage of 6 kilometre per liter in 3 liter the cars can travel 18 kilometre.
Learn more about the distance here;
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Which of the lines below is perpendicular to y= -2/5
A.y=-5/2x-9
B.y=-2/5x+8
C.y=5/2x+1
D.y=2/5x-3
When leaving from the port station at sea level, the Carmelit funicular travels 5,658 feet horizontally along a slope of 14.6/94.3. What is the elevation of the top station?
Answer: 876 feet
Step-by-step explanation:
Given
Carmelit travels 5658 feet horizontally
The slope of trajectory is [tex]\dfrac{14.6}{94.3}[/tex]
We know, the slope is
[tex]\Rightarrow \text{slope}=\frac{\text{Vertical distance}}{\text{horizontal distance}}\\\\\Rightarrow \dfrac{14.6}{94.3}=\dfrac{Y}{5658}\\\\\Rightarrow Y=876\ feet[/tex]
Hence, the elevation of the top station is 876 feet
7. A number m is such that when it is divided by 30, 36, and 45 the remainder is always 7, find
the smallest possible value of m. (3 marks)
Answer:
187
Step-by-step explanation:
Express the sum: a-5
Plz help
Answer: (a+a)-10
Step-by-step explanation: I think this works bcuz it's equivalent?
Sarah bought 18 boxes of 65 pens at $12 a box. She sold 378 of them at 3 for $1.00 and the rest at 4 for $1.00. She sold 378 of them at 3 for $1.00 and the rest at 4 for $1.00. Find her total profit.
Answer:
$108
Step-by-step explanation:
The computation of the total profit is shown below:
Given that
1 box = $12
18 boxes = 12×18 = $216
So
Total = 18×65 = 1170 pens
Now Cost price, Cp = $216
Also,
3 = $1
So,
= 378 ÷ 3
= $126
Now
= 1170-378
= 792 pens remaining
4 = $1
So,
792
= 792 ÷ 4
= $198
Now
Total selling price, sp = 126+198 = $324
So finally
Profit = Sp - Cp
= $324 - $216
= $108
A sofa is 12 years oldvand a table is 36 years omd.In how many years will the table be twice as old as the sofa ?
Answer:
12 years later.
Step-by-step explanation:
Let assume in X years, the table will be twice as old as the sofa.
36+X=2(12+X), X=12
Or think it the other way. The difference of ages between two things never change. So they must have a difference(of age) of 24 forever. When will this difference(24) be as same as the younger's age so that the older one is exactly twice as old as the younger? 12 years later when the sofa is 24.
Amber's rectangular patio is 30 feet
long. The ratio of length to the
width is 4 to 2. What is the width of
Amber's patio in yards?
(Hint: 3 feet = 1 yard)
Select each expression that shows a correct method for finding 36% of 400. There is more than one answer!!! 3.6100 x 4003.6100 x 400 36100x 400 36100x 400 0.36 ⋅ 400 0.36 ⋅ 400 36 ⋅ 400 36 ⋅ 400 0.36100 x 400
Answer:
B. 36/100 x 400
C. 0.36 ⋅ 400
Step-by-step explanation:
A. 3.6/100 x 400
B. 36/100 x 400
C. 0.36 ⋅ 400
D. 36 ⋅ 400
E. 0.36/100 x 400
36% of 400
= 36/100 × 400
= 0.36 * 400
= 144
what is the least common denominator of 9/10 and 1/4
Answer:
Step-by-step explanation:
Solution:
Rewriting input as fractions if necessary:
9/10, 1/4
For the denominators (10, 4) the least common multiple (LCM) is 20.
LCM(10, 4)
Therefore, the least common denominator (LCD) is 20.
Calculations to rewrite the original inputs as equivalent fractions with the LCD:
9/10 = 9/10 × 2/2 = 18/20
1/4 = 1/4 × 5/5 = 5/20