8b–9b–5b+7b
Simplify the expression:
Answer:
b, or 1b
Step-by-step explanation:
First of all, you have to combine like terms. In this situation though, they are all b. So start at the beginning. 8-9 is -1. -1 - 5 is -6. -6+7 is 1. So you say, b, because it is the same thing as 1 b.
anyone please help me for brainly
Answer:
A.) [tex]f(x)=25x+40[/tex]
Step-by-step explanation:
Answer:
[tex]f(x)=25x+40[/tex]
Step-by-step explanation:
Hope this helps
Two architects bid for a small government project, both
charging a flat fee added to an hourly rate. Amazing
Designs bids $250 plus $45 per hour, while Super Structures
bids $100 plus $60 per hour. At what point in time will the
two companies charge exactly the same amount?
Answer:
10 hours
Step-by-step explanation:
let x be the total number of hours
Amazing design total charge = 45x+250
super structures total charge = 60x+100
both companies charge the same amount when both equation equals
45x+250=60x+100
60x-45x=250-100
15x=150
x=10
therefore at 10 hours both companies will charge the same amount
The sides forming the right angles and hypotenuse of a right angled triangle are x cm, (2x + 2) cm and (3x – 2) cm respectively. Calculate the perimeter of the triangle.
Answer:
6x
Step-by-step explanation:
Perimeter is the sum of all the sides:
(x) + (2x + 2) + (3x - 2)
Add like-terms:
6x + 2 - 2 = 6x
Perimeter = 6x
Evaluate $\frac{20}{101}-\frac{20}{99}$. Express your answer in simplest form.
write a linear equation that passes through the point (-3,3) and (9,-13)
Answer:
y=-4/3x-1
Step-by-step explanation:
[tex] \frac{ {y}^{2} - {y}^{1} }{ {x}^{2 -{x}^{1} } } [/tex]
[tex] \frac{ - 13 - 3}{9 - - 3} = \frac{ - 16}{12\ }[/tex]
y=mx+b like this:
y=-4/3x+b
To find b:
y=-4/3x+b.
You can use either (x,y) point you want..the answer will be the same
(-3,3). y=mx+b or 3=-4/3 × -3+b, or solving for b: b=3-(-4/3)(-3). b=-1.
(9,-13). y=mx+b or -13=-4/3 × 9+b, or solving for b: b=-13-(-4/3)(9). b=-1.
[tex]\bold{ \sqrt{12} \times \sqrt{12} }=[/tex]
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The equivalent value is ~
[tex] \boxed{12}[/tex]
[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]
Let's solve ~
[tex] \sqrt{12} \times \sqrt{12} [/tex][tex] \sqrt{2 \times 2 \times 3} \times \sqrt{2 \times 2 \times 3} [/tex][tex] \sqrt{2 \times 2 \times 3 \times 2 \times 2 \times 3} [/tex][tex]2 \times 2 \times 3[/tex][tex]12[/tex]
? Steve has 7 biscuits in a tin. There are 3 digestive and 4 chocolate biscuits. Steve takes two biscuits at random from the tin. Work out the probability that he chooses two different types of biscuits.
Using the hypergeometric distribution, it is found that there is a 0.5714 = 57.14% probability that he chooses two different types of biscuits.
What is the hypergeometric distribution formula?The formula is:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes.N is the size of the population.n is the size of the sample.k is the total number of desired outcomes.In this problem, the values of the parameters are given as follows:
N = 7, k = 3, n = 2.
The probability that he chooses two different types of biscuits is P(X = 1), hence:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 1) = h(1,7,2,3) = \frac{C_{3,1}C_{4,1}}{C_{7,2}} = 0.5714[/tex]
More can be learned about the hypergeometric distribution at https://brainly.com/question/24826394
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Model a desert community where 19% of the area is
desert and the rest is houses.
squares represent the area of the community
that is desert.
The area of the community that is houses is
represented by squares.
Answer: the first one is 19 and the second is 81.
What is the answer to 3) 1 + 4x = −5 + 7x
Answer:
x = 2
Step-by-step explanation:
Large boxes weigh 75 pounds, and small boxes weigh 40 pounds. a. Write an inequality that represents the numbers of large, x , and small, y, boxes a 200-pound delivery person can take on the elevator.
The inequality that represents the numbers of large, x and small, y boxes of a 200 pound delivery person is; 75x + 40y ≤ 200
Weight of large boxes = 75 pounds
Weight of small boxes = 40 pounds
Number of large boxes = x
Number of small boxes = y
Thus;
Total weight of large boxes = 75x
Total weight of small boxes = 40y
If the delivery man has 200 pound weight to deliver, then inequality is;
75x + 40y ≤ 200
Read more about Inequalities at; https://brainly.com/question/24966055
which product is greater (-4) x (-6) or (-7) x (-8) explain how
Answer:
(-7) × (-8)
Step-by-step explanation:
(-4) × (-6) = 24
(-6) × (-7) = 42
Ruben bought 666 comic books for \$21$21dollar sign, 21. Each comic book was the same price.
What was the cost for 111 comic book?
\$
Answer:
$3.50
Step-by-step explanation:
111 is a sixth of 666 so its 21/6 which is 3 dollars 50 cents.
The sum of two numbers is x . If one of the numbers is 12, what is the other?
Answer:
x - 12
Step-by-step explanation:
Given
12 + ? = x ( subtract 12 from both sides )
? = x - 12
The other number is x - 12
what is the circumference of a circle with diameter 14-inches long
Answer:
the circumstance is 43.98
What is product in math.
Answer:
so when you Mutpliy #*# = #product
Step-by-step explanation:
EX: 3*4=12
solve pls brainliest
Answer:0.16 bar ontop of 6
Step-by-step explanation:
Answer:
0.166
Step-by-step explanation:
I did this about 2 years ago
Need help answering this question, and 4 others that are on my page. Giving Points and Brainiest.
h(x) = -4
Step-by-step explanation:
Simple. Plugging this into the equation will give us:
h(x) = -14 -(-40)/4 = -14+10
h(x)= -4
A rental car agency charges $220.00 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $380.00?
40 miles per week
Step-by-step explanation:
380-220 = 160÷4 = 40
You can travel 320 miles in one week for $320 miles.
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.
Given:
A rental car agency charges $220.00 per week plus $0.25 per mile to rent a car.
If the amount is $380.
Then, 380 - 220 = 160
And 160 divided by 0.5,
= 160/0.5
= 320 miles.
Therefore, the required distance is 320 miles.
To learn more about the division;
https://brainly.com/question/13263114
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A city has a population of 38,802,500 people. Esitmate this population to the nearest ten million
Answer:
40,000,000
Step-by-step explanation:
hope this works
( No Copy answer Use)
:)
Jayden needed gloves
and bought 2 packages
of gloves. There were 5
pairs in each package.
He added this to the 3
pairs of gloves he
already owned. How
many gloves did Jayden
now own?
Answer:
Jayden has 13 pairs of gloves.
Step-by-step explanation:
2 packages multiplied by 5 pairs = 10
10 pairs plus 3 pairs he already had
= 13 pairs of gloves total
16.093 x 10 to the third power
HELP ME PLEASE GOD
Answer:
16093
Step-by-step explanation:
I hope this helps!
Answer:
Your answer is 6,960,212.797357.
End of Answer
Step-by-step explanation:
(19.093 * 10)^3 OR
19.093 * 10 = 190.93
190.93^3 = 6,960,212.797357
End of Step-by-step explanation
Edit: I'm probably wrong this is the actual answer: 16093
The sum of two numbers is 91 the difference of the two numbers is 67 what are the two numbers let x be the larger number and y be the smaller number
Answer:
x = 79
y = 12
Step-by-step explanation:
x + y = 91
x - y = 67
=> x = (91 + 67) : 2 = 79
=> y = (91 - 67) : 2 = 12
P/s: I don't know how to explain what I just did actually, since we learn how to solve this kind of problem in primary at my place already so it's like a blurry memory about how I learn it. If the math problem is to find 2 numbers, knowing their sum and the difference already, this is how to solve it:
=> Larger number: (Sum + difference) : 2
=> Smaller number: (Sum - difference) : 2
If you can memorize it, good for you! If not then it's alright, this is just a nice tips from me to you. You'll have more advantages in solving these kind of math problem if you can memorized these 2 formulas.
Joseph is pouring concrete for his new patio. The area of the patio is 25.2 square feet
and the length is 7.2 feet. What is the width, w, of his patio?
Answer:
3.5ft
Step-by-step explanation:
A = L(W)
25.2 = 7.2(W)
3.5 = W
PLEASE HELP ME OUT!
25 cm = ______ mm
15 g = ______ mg
Answer:
25cm = 250mm
15g = 1500mg
Step-by-step explanation:
cm to mm = multiply by 10
therefore 25 x 10 = 250
g to mg = multiply by 1000
therefore 15 x 1000 = 15000
pls help!!
Dominick buys a package of soup mix that is 1.38 ounces. How many ounces are 6 packages of soup mix?
Answer:
8.28
Step-by-step explanation:
this is the answer because
.08*6= .48
.3*6= 1.8
1*6=6
.48+1.8 = 2.28
6+2.28=8.28
I need help quickly
The formula for the area of a triangle is A=1/2bh, where b is the base of the triangle and h is the height of the triangle. The area of the triangular sail of a sailboat is 126ft^2. The base is 12 ft. Find the height of the sail.
(Show steps please)
Answer:
H=21ft
Step-by-step explanation:
Height=2•Area/Base
Area=126ft^2
Base=12ft.
H=2•126/12=21ft
H=21ft
Hope this helps :)
Rahul earns 21,000 in 7 months.
a) How much does he earn in 12 months!
b) In how many months will he earn *33,000?
Answer:
a _ 12×21000/7 = 36000
b _ 33 × 7 / 21000= 11 months
Amy thinks that 2/5 in its simplest form is 1/2.5
Do you agree? Convince me
Answer:
no
Step-by-step explanation:
2/5 is the simplest form in this question 1/2.5 would not mathematically go into 2/5