Answer:
as your intelligence in your mind
Answer:
when calculating the discounted price of an item
(You spend $42.00 on groceries, but you have a coupon for 10% off. What is the final price of your bill?)
when calculating tax
(You buy a pair of sunglasses for $49.00. The sales tax is 7%.How much do you need to pay including tax?)
when calculating the mark-up of a price
(James bought a pair of jeans for $23 . He sold it online on marks it up by 20% . How much did he profit?)
What is AC Brainliest for answer
Answer:
The legnth of AC is about 6.364
Explanation:
Solve.
X + 2 over X
X -1 Over 2
2
1,4
-1
No solution
Answer:
10x times 1000 y minus 4x
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
A culture is tested for bacteria and has 1.3 million bacteria. The culture is then tested every 15 minutes and each time it is tested there are 3.5 times more bacteria. How many bacteria in millions will there be in the culture after 30 minutes? Round to the nearest hundredth.
Answer:
hi so i have the answer for the 1st one but not the second one.
the first one
16, 11, 6, 1, -4 is arithmetic
5/9, 5/3, 5, 15, 45 is geometric
and 1/2, 1,2,3,4 is neither
Step-by-step explanation:
can you graph this equation?
0.5s+4a=15
is it possible?
Answer: look at the picture of you want me to solve s or a here
Step-by-step explanation: hope this help:)
what is the area of this figure?
Answer:
hi
Step-by-step explanation:
In a choir there are 27 men and 60 women.
4
The probability that a man chosen at random wears glasses is
9
7
The probability that a woman chosen at random wears glasses is
12
a) Work out the number of people in the choir who wear glasses.
Your final line should say, Total = ...
b) A person is chosen at random from the choir.
Work out the probability that the person does not wear glasses.
Answer:
Step-by-step explanation:
a) Men = 4/9 × 27 = 12
Women = 7/12 × 60 = 35
Total = 35 + 12 = 47
b) 60 + 27 = 87
87 - 47 = 40
P(no glasses) = 40/87
The number of people in the choir who do not wear glasses is 40 and the number of people who wear glasses is equal to 47
What is probability?Probability is a measure of the likelihood of an event occurring. The probability formula is defined as the possibility of an event happening being equal to the ratio of the number of favorable outcomes and the total number of outcomes. Probability of event to happen P(E) = Number of favourable outcomes/Total Number of outcomes.
Given here P(a man is wearing a glasses) = 4/9 and P(A woman wearing glasses)= 7/12
Now using the formula for probability and total man is 27 hence
P(man) = 4/9
= 4× 3/9×3
= 12/27
thus the number of men that wear glasses is equal to 12 and man who do not is 27-12=15
Similarly for woman P(woman) = 7×5/12×5
= 35/60
therefore woman who wear glasses = 35 and woman who do not = 25
Hence total number of people who wear glasses is 47 and people who do not wear glasses is equal to 40
Learn more about probability here:
https://brainly.com/question/30034780
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Helpppppppppppppppppppppp
Answer:
20
Step-by-step explanation:
(2x)° + (2x)° + (6x - 20)° = 180°
10x = 200
x = 20
Find the value of x.
7
60°
The value of x is approximately (7√3) / 3.
Given that a right triangle with base = x and the perpendicular side = 7 and the reference angle is 60°, we need to find the value of x.
To find the value of x in a right triangle with a base of x and a perpendicular side of 7, and with a reference angle of 60 degrees, we can use the tangent function.
The tangent of an angle is defined as the ratio of the length of the side opposite the angle (in this case, 7) to the length of the side adjacent to the angle (in this case, x). So we have:
tan(60°) = 7 / x
Now, we can solve for x by multiplying both sides of the equation by x:
xtan(60°) = 7
To find the value of x, we need to know the value of tan(60°). The tangent of 60 degrees is √3. So we have:
x√3 = 7
To isolate x, we divide both sides of the equation by √3:
x = 7 / √3
To simplify the expression, we multiply both the numerator and the denominator by √3:
x = (7 / √3)(√3 / √3)
= (7√3) / 3
Therefore, the value of x is approximately (7√3) / 3.
Learn more about tangent functions click;
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if u take my points i will hack you but PLZ i need help I'm taking a math test and frgt to study if I get all four correct I will give you brainliest
Answer:
ill just do the first page
Step-by-step explanation:
3(x-8)=5x+6
3x-24=5x+6
3x-5x-24=6
3x-5x=6+24
-2x=6+24
-2x=30
x=-15
4x+20+2(x-7)=0
4x+20+2x-14=0
6x+20-14=0
6x+6=0
6x=-6
x=-1
Multiply and divide in scientific notation
Answer:
To multiply two numbers in scientific notation, multiply their coefficients and add their exponents. To divide two numbers in scientific notation, divide their coefficients and subtract their exponents. In either case, the answer must be converted to scientific notation.
Step-by-step explanation:
Walter and his mother drove to Miami Florida. It took them 9 hours and 45 minutes to drive 658.125 miles. Their average speed was how many mph?
Answer: 67.5 mph
Step-by-step explanation:
The formula for speed is:
= Distance / Time
Distance = 658.125 miles
Time will need to be converted to a decimal. You may convert only the minutes into hours as the hours are already hours.
= 45/60 minutes
= 0.75 hrs
= 9 + 0.75
= 9.75 hours
Speed = 658.125 / 9.75
= 67.5 mph
PLZ HELP ASAP PLZZ!!!!!
Step-by-step explanation:
one order 45 chocolate bars
5 orders = 45*5= 225 chocolate bars
Buna sunt sexii sigZaghahahahah
Answer:
HIIIII GVJJHGNKJMJNNJ SEXIIIJBH
Step-by-step explanation:
Answer: Hi there are sex11 sigZaghahahahah
Step-by-step explanation: What????????
To get a student learner's permit to drive in New Jersey, an individual must be at least 16 years old. Let, a, represent the age at which a person gets a student learner's permit to drive in New Jersey. Using the variable defined above, write an inequality that represents the statement above.
Answer:
[tex]a\geq 16[/tex]
Step-by-step explanation:
Let [tex]a[/tex] represents the age at which a person gets a student learner's permit to drive in New Jersey.
Also, an individual must be at least [tex]16[/tex] years old to get a student learner's permit to drive in New Jersey.
So, inequality is [tex]a\geq 16[/tex]
(Inequality explains a relationship of greater than or greater than or equal to or less than, or less than or equal to between two mathematical expressions)
Alright last question this time 30 points gooo
Answer:10
Step-by-step explanation:
2+3+2+3
is
10
Please and thank you
C is the answer to the question
Elyssa works as an assistant coach. She earns $10.95 per hour. How much will she get
paid if she works 7.5 hours next week?
Answer:
82.125
≈82.12 ( am not sure if it need to be estimated )
Step-by-step explanation:
1 hr -> 10.95
30m-> 5.475
10.95x7=76.65
76.65+5.475=82.125
≈82.12 ( am not sure if it need to be estimated )
[tex] {( \sqrt{3} )}^{x + y} = 9 \\ {( \sqrt{2} )}^{x - y} = 32[/tex]
find the value of 2x + y.
[tex] • \: {( \sqrt{3} )}^{x + y} = 9\: \: \: \: (i)[/tex]
[tex]• \: {( \sqrt{2} )}^{x - y} = 32 \: \: \: \: (ii)[/tex]
[tex] \\ [/tex]
[tex] \bf \purple{ \underline{To \: Find :- }}[/tex][tex] • {\sf{The \: value \: of}} \: \: 2x+ y.[/tex]
[tex] \\ [/tex]
[tex] \huge\bf \purple{ \underline{Solution :- }}[/tex]
[tex] \sf{From \: equation \: (i), }[/tex]
[tex] {( \sqrt{3} )}^{x + y} = 9 [/tex]
[tex]⇒ {( \sqrt{3} )}^{x + y} = ({ \sqrt{3} })^{4} [/tex]
[tex] ⇒ x + y = 4 \: \: \: \: (iii)[/tex]
[tex] \\ [/tex]
[tex] \sf{From \: the \: equation \: (ii)}[/tex]
[tex]{( \sqrt{2} )}^{x - y} = 32[/tex]
[tex] ⇒( { \sqrt{2} })^{x - y} =( { \sqrt{2} })^{10} [/tex]
[tex]⇒x - y = 10 \: \: \: \: (iv)[/tex]
[tex] \\ [/tex]
[tex]\sf{We \: have \: to \: add \: equation \: (iii) \: and \: equation \: (iv)}[/tex]
[tex] x + y + x - y = 4 + 10[/tex]
[tex] ⇒2x = 14[/tex]
[tex] ⇒x = 7[/tex]
[tex] \\ [/tex]
[tex] \sf{Subtracting \: equation \: (iii) \: from \: equation \: (ii), }[/tex]
[tex]x - y - x - y = 10 - 4[/tex]
[tex]⇒ - 2y = 6[/tex]
[tex]⇒y = - 3[/tex]
[tex] \\ [/tex]
[tex] \bf\therefore x = 7 \: \: and \: \: y = - 3[/tex]
[tex] \\ [/tex]
[tex] { \sf{Th e \: value \: of }}= 2x +y [/tex]
[tex]\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =2 \times 7 + ( - 3)[/tex]
[tex]\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =14 - 3[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =11[/tex]
[tex] \bf \red{Hence, \: the \: value \: of \: 2x + y \: is \: 11. }[/tex]
3. A gardener mows 5 out of every 6 days. How many days would he mow
in a 90-day period of time? Plz I really need help ASAP
Answer:
Step-by-step explanation:
90(5/6)
450/6
75
9514 1404 393
Answer:
75
Step-by-step explanation:
90 = 6 × 15
There are 15 6-day periods in 90 days. The gardener will have mowed ...
15 × 5 = 75
times in those 15 periods.
He will mow 75 times in a 90-day period.
__
If you like, you can set up a proportion for the unknown number of mowings (m).
mows/days = m/90 = 5/6
Multiply by 90 to solve for m.
m = 90(5/6) = (90/6)(5) = 15(5) = 75 . . . . . . this should look like the above
Perform the operation and reduce the answer fully. Make sure to express your answer
as a simplified fraction.
In a sale, all normal prices are reduced by 12%
The sale price of a digital camera is £132.88
Work out the normal price of the digital camera
Answer:
151
Step-by-step explanation:
132.88 is 88% of the original price
132.88= p x .88=151
The side length of a square 12x + 32. Write an equivalent expression that shows the perimeter as four times the side length of the square.
Answer:
4(12x + 32) = 48x + 128
Step-by-step explanation:
son 1 Understanding Probability (Math- 1st Period - Ramirez)
Close
There are 3 red marbles, 3 blue marbles, and 4 yellow marbles in a jar. Cassandra pulls one out
at random. What is the probability that Cassandra will pull a BLUE marble out?
Write your answer as P(blue) =
(2 points)
Enter your answer
Answer:
p(blue) =
[tex] \frac{3}{10} [/tex]
Step-by-step explanation:
p (b)=
[tex] \frac{no \: of \: favourable \: outcomes}{no \: of \: total \: outcomes} [/tex]
so therefore ur answer will be 3/10
thank u hope it helped
If you want to build a container to protect an egg when it is dropped, the surface which touches the egg should be ___ in order to ___ the time of collision.
hard, increase
soft, increase
hard, decrease
soft, decrease
Answer: hard to increase and soft to decrease
Step-by-step explanation:
Are the above figures similar?
A.) Yes, they are similar because the corresponding sides are equal and the corresponding angles are proportional.
B.) No, they are not similar because the angles are equal and the sides are corresponding
C.) Yes, they are similar because the corresponding angles are equal and the corresponding side are proportional.
D.) No, they are not similar because they are not the same size.
I know it's a yes but i don't know which one though soo i need help please thank you
Answer:
hi:) i’m pretty sure it’s c!
Step-by-step explanation:
the angles are the same and although the sides are not equal the shapes will be the same
Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!
Answer:
13
Step-by-step explanation:
Calculate the distance d using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = (- 4, - 6) and (x₂, y₂ ) = (- 9, 6)
d = [tex]\sqrt{(-9+4)^2+(6+6)^2}[/tex]
= [tex]\sqrt{(-5)^2+12^2}[/tex]
= [tex]\sqrt{25+144}[/tex]
= [tex]\sqrt{169}[/tex]
= 13
What expression is equivalent to
P/3 + (3s + 7)
Answer:
(P+9s+21)/3
Step-by-step explanation:
hello :
P/3 + (3s + 7) = P/3 + 3(3s + 7)/3 = (P+9s+21)/3
The figure has an area of 182 cm
Which equation can be used to find the
value of r?
A 18r + (14)(r) = 182
B 18r + -(14)(r) = 182
C 18r - -(14)(r) = 182
D 18r - (32)(r) = 182
Answer:
[tex]18r+\frac{1}{2}(14)(r)=182[/tex]
Step-by-step explanation:
Area of the composite figure ABCDE = Area of triangle ABE + Area of the rectangle BCDE
Area of triangle ABE = [tex]\frac{1}{2}(32-18)(r)[/tex]
= [tex]\frac{1}{2}(14)(r)[/tex]
Area of rectangle BCDE = 18 × r
= 18r
Total Area = [tex]\frac{1}{2}(14)r+18r[/tex]
Therefore, equation to get the value of 'r' will be,
[tex]18r+\frac{1}{2}(14)(r)=182[/tex]
Andrew buys a laptop for $450. The store increases its purchase price by 40%? What is the new price of the laptop?
Answer:
630
Step-by-step explanation:
450 x 0.4 = 180
180 + 450 = 630
You can also do 450 x 1.4 = 630 because this will find the increased price with 140% of 450
The price of a sweater was reduced from $20 to $12. By what percentage did the price of the sweater decrease?
Answer:
40%
Step-by-step explanation:
20-12 = 8 difference
8/ 20 x100 = the percentage change = 40%