Answer:
400
Step-by-step explanation:
Percentage decrease = 20% × 500
New value = 500 - Percentage decrease
500 - (20% × 500) =
500 - 20% × 500 =
(1 - 20%) × 500 =
(100% - 20%) × 500 =
80% × 500 =
80 ÷ 100 × 500 =
80 × 500 ÷ 100 =
40,000 ÷ 100 =
400
Equation of a line passing through the point ( -2 ,-4 ) is:
Answer:
Step-by-step explanation:
its a linear line so using the equation y=mx+c it can be determined that y=-4 when x=-2.
gradient (m) is -2 and c is -4
so that means y=-2x-4
hi i need help my lazy -
Answer:
1/4 x (3 x 7) less than
(3 x 7) ÷ 5 less than
(3 x 7) - 8 less than
(3 x 7) ÷ 1 equal to
1 x (3 x 7) equal to
5 + (3 x 7) Greater than
(3x7) x (3-1) Greater than
(3x7) + (1-1) equal to
Step-by-step explanation:
i hope this is right
which ordered pair is a solution of the equation
Answer:
a
Step-by-step explanation:
2x+3y where it is 2,2 become 4 plus 6 which is 10
Answer:
A
Step-by-step explanation:
Step 1:
Make your equation into y=mx+b format
2x+3y=10 is the same as y=-2/3x+10/3 (10/3 is about 3.33)
Step 2:
Graph your equation
Step 3:
Plot your points and you will see that the only one that works is (2,2)
Hope that helps
On October 23, 2011, one U.S. dollar was worth 49.84 Indian rupees.
(a) On that date, how many rupees was 77.65 dollars worth?
Round your answer to the nearest hundredth of a rupee.
rupees
(b) On that date, how many dollars was 82.12 rupees worth?
Round your answer to the nearest hundredth of a dollar.
dollars
On that date, 77.65 dollars is worth 3,870.08 rupees.
On that date, 82.12 rupees is worth $1.65.
What is the worth of the currencies?Exchange rate is the rate at which one currency is exchanged for another currency.
In order to convert rupees to dollars, multiply the value of the rupees by the exchange rate:
value of the rupees x exchange rate
77.65 to rupees = 77.65 x 49.84 = 3,870.08 rupees
In order to convert dollars to rupees, divide the value o the dollars by the exchange rate:
value of the dollars / exchange rate
82.12 to dollars = 82.12 / 49.84 = $1.65
To learn more about exchange rate, please check: https://brainly.com/question/25780725
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Free chance to get brainliest
Simplify (−3.5)(−3)(−6.4). (5 points)
Select one:
a.
−672
b.
−67.2
c.
67.2
d.
672
[tex]b \: .) \: \: - 67.2[/tex]
hope it helps
Which describes the range of the function?
Week 16
Assignment 22-10-2021
1. Calculate the area and perimeter of a
rectangle of length 7xm and width 3xm
The length of a rectangle measures 5/8 of a foot. The width of the rectangle measures 2 1/2 feet. What is the area of the rectangle?
Answer:
1 9/16 square feet or 1.5625 square feet
Step-by-step explanation:
Area of a rectangle is Length x Width
First convert 2 1/2 into a number that is just a fraction.
2 = 4/2 so 4/2 + 1/2 = 5/2
Now you can multiply the two fractions to find the area.
area = 5 5 25
-- x -- = -----
8 2 16
To simplify this, you know 16/16 = 1 so subtract 16 from the numerator which leaves 9/16
Your answer will be 1 and 9/16
if the price of an item before tax is £720 and the tax percentage is 25%, what is the selling price?
the ratio to 30 1 17 gallons and 5 sec
1=6
17=102
Explanation:
If she drinks 30 gallons in 5 seconds then you would divide 30 by 5 and would get 6 meaning she drinks 6 gallons per second so if you multiply 6 times 17 you get 102
What is the equation of the line in the slope-intercept form?
Answer:
y = [5/2]x + [5]
Step-by-step explanation:
y= mx+b
m=rise/run
m=5/2
b=y intercept
b=5
y = 5/2x + 5
4. Isoke's salary in 2015 is $30 000 per year. Every year her salary
is increased by 5%.
In 2016 her salary will be
30 000 x 1.05 = $31 500
In 2017 her salary will be 30 000 x 1.05 X 1.05 = $33075
In 2018 her salary will be 30 000 x 1.05 x 1.05 x 1.05 = $34728.75
And so on.
a). What will her salary be in 2019?
b) What will her salary be in 2021?
Answer:
in 2019, $36 465.19
in 2021, $40 202.87
Step-by-step explanation:
2015 is $30 000 per year
if it is increased by 5% every year
then,
in 2019, her salary will be $30 000 x (1.05)^4 = $36 465.19
in 2021, her salary will be $30 000 x (1.05)^6 = $40 202.87
pls answer ASAPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
46, 57 , 67
Step-by-step explanation:
Acute scalene triangle : A triangle in which all three angles are less then 90 degrees and all three angles are different measurements .
have a good day
Como aser conjuntos
No entiendo cuál es la pregunta, ¿qué son los conjuntos? si es la respuesta es ........
En matemáticas, un conjunto es una colección de elementos. Los elementos que componen un conjunto pueden ser cualquier tipo de objeto matemático: números, símbolos, puntos en el espacio, líneas, otras formas geométricas, variables o incluso otros conjuntos. El conjunto sin elemento es el conjunto vacío; un conjunto con un solo elemento es un singleton.
What is the value of z?
Answer:19
Step-by-step explanation:
ndjsjdjdjdjdjjxndjxjusnsu j
Answer:
B
Step-by-step explanation:
bcoz sin and cos 45 have 1/root2
Answer:
B. 45°
Step-by-step explanation:
sin(45) = √2/2
cos(45) = √2/2
Sela's piano lesson starts at 4:45pm. The lesson is 30 minutes long.
When does her lesson end
Answer:
The lesson ends at 5:15 pm.
Answer:
Her piano lesson ends at 5:15pm
Hope it helps:)
complete the following statements of congruence zyx
Answer:
cba
Step-by-step explanation:
yes correct answer x yimes h yomes z
Several years ago, Winston invested in some gold. Gold is currently valued at $546 per ounce, which is 30% more than Winston originally paid for it. What was the purchase price of the gold?
Answer:
420
Step-by-step explanation:
130/100x = 546
x=54600/130
x=5460/13
x=420
please help me..
here is a part of a proof that chen wrote. what is his error?
(refer to the picture)
Answer:
<A is not congruent to angles B or C
Step-by-step explanation:
AB ~AC Given
<B ~ <C isosceles Triangle Theorem
The length of the side AB and AC will be congruent with each other. Then the triangle ΔABC will be an isosceles triangle.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
The two triangular legs and their opposing angles are congruent in an isosceles triangle.
In triangle ΔABC, then the length of the side AB and AC will be congruent to each other.
AB = AC
Then the triangle ΔABC will be an isosceles triangle.
More about the triangle link is given below.
https://brainly.com/question/25813512
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negative2 - 7 is equvilent to
Answer:-5
Step-by-step explanation:
Answer:
-9
Step-by-step explanation:
-2 - 7
Picture a number line in your head, you begin at negative 2, which is less than 0 and you further go left 7 points, so you will end at -9
100 points
The average temperature of the earth's stratosphere is -70 degrees. The average temperature on the earth's surface is 57 degree. How much warmer is the average surface of the earth than the stratosphere?
Answer:127
all you do is subtract -70 by 57 and it will give you a negative but get rid of it and you get 127 or just take the - away from -70 and add 57
Jane Rogers has a $100,000 whole life policy. What will the cash value of her policy be at the following anniversary dates?(Use a thousands comma where applicable.)Anniversary dateCash Value10 year$20 year$
Answer:
Brainliest Please
Step-by-step explanation:
10 year: $1000000
20 years: $2000000
Answer:
10 years = 8,900.00.
20 years = 23,200.00.
Step-by-step explanation:
Hey, let me tell you how to solve this; I had trouble as well.
Since the policy is worth 100,000, you divide this by 1,000.
That gives us 100.
Now, multiply 100 by the 10 yr cash value, which is 89.
That results in 8,900.00.
Taking 100 again, multiply it by the 20 yr cash value, 232.
That gives us 23,200.00.
Hope it helps.
10-24
Which graph represents the solution to this system of inequalities?
-
3х — 5у < 15
y> - x +1
Answer:
Like this...
Step-by-step explanation:
The best represented graph should look something like this :)
(program used is Desmos)
Find the vertex of a quadratic function written in standard form.
f(x) = 3x2 + 18x + 32
PLS HELP!!
Answer:
our vertex for f(x) = 3x² + 18x + 32 = (-3, 5 )
Step-by-step explanation:
let me write the standard form of a quadratic equation
[tex]a {x}^{2} + bx + c[/tex]
Now let me rewrite the original equation
[tex]3 {x}^{2} + 18x + 32[/tex]
Now we use this simple formula to find the vertex (h, k)
[tex]x = h = - \frac{b}{2a} \\ = - \frac{18}{2(3)} = - \frac{18}{6} = - 3 \\ h = - 3[/tex]
substitute -3 for x back into our original equation to solve for y our k value of our vertex
[tex]y = 3 ({ - 3})^{2} + 18( - 3) + 32 \\ = 3(9) - 54 + 32 \\ = 27 + 32 - 54 \\ = 59 - 54 \\ k = 5[/tex]
our vertex for f(x) = 3x² + 18x + 32 = (-3, 5 )
Help me with this question (will mark brainliest)
Answer:
What's the question?
I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D
Answer:
The answer is B) 2/3x=5 and E) 6x-3+8=11.
Step-by-step explanation:
Basically, all we have to do is see which of the answer options contains an equal sign. So lets go from there:
Does A have an equal sign? We can see the plus sign, a coefficient, and a variable, but we don't have an equal sign, so A is not an equation.
What about B? Well, we can see an equal sign that is showing that two values of an expression equal each other, so yes, B is an equation.
What about C? Well, we can see the minus sign, a variable, and a coefficient, but there is no equal sign. Therefore C is not an equation.
What about D? Well, D has parenthesis, variables, coefficients, and a plus sign, but no equal sign. So no, D is not an equation.
Finally, is E and equation? Well, we can see that there are two values that are equal to each other as is shown by an equals sign. So yes, E is an equation.
*Had to replace so I could submit the answer
[tex](1+sin^{2} )cosx+(1+cos^{2} x)sinx=1=sin2x[/tex]
The answer is = 1 + sin x
Explanation
we need
a^2 - b^2 = (a+b) (a-b)
we use
cos^2 x + sin^2 x = 1
cos^2 x = 1 - sin^2 x = ( 1 + sin x) ( 1 - sin x )
therefore
cos ^2 x over 1 - sin x = 1+ sin x
Can y’all please help me I don’t get it
Answer:
C- 10+x=14
Step-by-step explanation:
WILL GIVE BRAINLIEST
questions 35-45 odd
please show work
Answer:
35. Domain is -∞,∞ Range is y=0.
Step-by-step explanation:
No solution.