Answer: If it is a rectangle then the perimeter is 58 cm
Step-by-step explanation:
10x2= 20
19x2= 38
38+20= 58
There are two numbers such that one of the numbers is 5 2/7 more than twice the other number. If you multiply the smaller number by 5, the product is twice the larger number. What are the two number? Please no links and answer fast!
Answer:
Smaller number: 10 4/7
Bigger number: 26 3/7
Step-by-step explanation:
How I did this problem was very simple, so first I made my different numbers, the smaller number being x, and the larger number being
2x+5 2/7. Then, I did the equation 5x=4x+ 74/7. How I got this equation was I multiplied 5 2/7 into 2 and got 74/7. After the equation, I got my answers, then double checked them.
You are welcome!
Monty is working on a formula to determine the amount of profit (P) he will make when he sells his pottery. He has already spent $50 on materials and plans to sell each pot for $5. If x represents the number of pots he sells, which formula represents Monty's profit from his sales?
Answer:
P=5x-50
Step-by-step explanation:
Profit is represented by P.
$5 is what Monty plans to sell each pot for and x represents how many pots he sells.
therefore 5x-50=P
can someone explain how to get the answer for the following question ?
Find the coordinates of the point of intersection of the parabola y = 3x^2 - x - 7 and the line y = 5x - 10
the answer is (1,-5) if you need it just explain how to get it !!
There are 45 coins consisting of nickels and dimes. If the total value of the coins is $3.75, how many nickels are there?
A 10
B 12
C 15
D 22
Answer:
15 nickels
Step-by-step explanation:
Choose variables: n = number of nickels, d = number of dimes.
There are two pieces of information given:
There are 45 coins, so n + d = 45.
The total value is $3.75 (let's use cents in order to avoid decimals), so
5n + 10d = 375
Solve the first equation for d by subtracting n from both sides.
d = 45 - d
Substitute this expression for d in the value equation:
5n + 10(45 - n) = 375 See? The only variable is now n!
Distribute the 10 (multiply).
5n + 450 - 10n = 375
450 - 5n = 375
-5n = -75
n = 15
There are 15 nickels.
Mr. McDonald just bought a farm tractor for $50,000. For tax purposes, its value is expected to
depreciate at a rate of 16% annually. What will the tractor's value be in 4 years? Round to the
nearest hundredth (cent).
Answer:
$24,893.40
Step-by-step explanation:
Year 1
50,000 x 0.16 = 8,000
50,000-8,000 = 42,000
Year 2
42,000 x 0.16 = 6,720
42,000-6,720 = 35,280
Year 3
35,280 x 0.16 = 5644.80
35,280-5644.80= 29,635.2
Year 4
29,635.2x0.16 = 4,741.6
29,635-4,741.6 = $24,893.40
Kellie bought 8 towels and spent $39.60. Each towel costs the same amount.
Part A
Use the drop-down menus to create an equation that can be used to determine t, the
price, in dollars, of 1 towel.
t
+
00
39.60
Part B
What is the price, in dollars, of 1 towel?
Enter your answer in the box.
$
Answer:
fvg bvgcjvtfjocfrx
Step-by-step explanation:
kjn
jkm
'knlnkm
kl
j
kl;n
;kn
Please help!!!!
Will give out brillianst!!!
Answer:
A, C, D
A function can’t have repeating x-values. Each assigns exactly one range (y-value) to each domain (x-value)
FOR PART A
Step-by-step explanation:
Evaluate the expression. Write your answer in scientific notation.
1. 4.1x10^3) + (3.7x10^2)
2. (1.2x10^(3))*(4x10^(5))
How many pounds of walnuts that cost $0.80 per pound must be mixed
with 8 pounds of cashews that costs $1.25 per pound to make a mixture of
nuts that costs $1.00 per pound?
Answer:
kt 5.20 yes
Step-by-step explanation:
5.20
Step-by-step explanation:
In Ellen's math class, there were 2 boys to every 3 girls. Which of the following could be the ratio of girls to boys in the class? As a fraction
Answer:
A . 17/21
B . 14/21
C . 7/14
D. 11/17
Step-by-step explanation:
Answer:
Answer is B: 14 to 21
Step-by-step explanation:
The ratio "2 to 3" was multiplied by 7 to get this ratio. All the other following are incorrect.
A bag contains 2 green disks,2 yellow disks, and 5 black disks. What is the probability of drawing two green disks without replacement?
Answer: 1/36
Step-by-step explanation: 2/9 x 1/8 =2/72 = 1/36
Please help with this question if you can
Answer:
5.1
Step-by-step explanation:
so the leaning ladder makes a right angled triangle so we can use pythagoras to calculate the the length (the hypotenuse):
5²+1²=x²
25+1=x²
√26=x
x=5.099...
and now we round to one d.p so it becomes 5.1 (1 d.p) as the hundreths digit is 9 and 9 is rounded up.
which fraction equals - 9/16? mark all that apply.
which number is equivalent to (-14+6)-8÷4×4
Answer:
0
Step-by-step explanation:
-8-8+4×4
-8-8+16
-16+16
=0
what is the area and perimeter of 29 yd and 72 yd
Answer:
Area: 2,088 Perimeter: 202
Step-by-step explanation:
Since it's a rectangle, both small sides are going to be the same, and both long sides are going to be the same. So for perimeter add up 29+72+29+72 to equal 202. For area you just multiply 29 times 72:)
15 points, I will give the brain award thing if u answer correctly. A triangle has sides with lengths of 2x - 9 ,5x - 3 and 2x -2. What is the perimeter of the triangle?
Using the least common denominator rename 3/5 and 1/20
Answer:
12/20 and 1/20.
Step-by-step explanation:
The least common denomiator between 3/5 and 1/20 is 20.
For the first equation, we multiply the numerator and denominator by 4 to get 12/20.
The second equation's denominator is already 1/20, so we can leave it as is.
The final answer is 12/20 and 1/20.
I rly rly rly rly rly rly rly rly rly rly rly need help for sum reason
Answer:
6*5=30 units
Step-by-step explanation:
Brainliest?
0.39+0.11= adding decimals
Please help me and actually give me the answer please
Answer:
Coin flip: 29 times
Blue spinner: 15 times
Standard cube: 18 times
Step-by-step explanation:
50% chance of head/tails, 58 x 0.5 = 29 times it will probably land on heads
60 spins/4 colors = 15 times likely each color
1,3,5 are odd, out of 6 numbers on a cube, so 50% chance, 36 x 0.5 = 18 times
Help me please I do not understand
9514 1404 393
Answer:
95
Step-by-step explanation:
The sequence of first differences is ...
32 -25 = 7
37 -32 = 5
47 -37 = 10
58 -47 = 11
71 -58 = 13
79 -71 = 8
These seem to have no pattern, so the sequence is not arithmetic, geometric, quadratic, or any other common type.
If we look at the digits of the numbers in the series, we see they have sums of ...
2 +5 = 7
3 +2 = 5
3 +7 = 10
4 +7 = 11
5 +8 = 13
7 +1 = 8
7 +9 = 16
That is, the difference between a number and the next in sequence appears to be the sum of the digits of the number. This rule tells us the next number is ...
79 +(7+9) = 95 . . . next number in sequence
_____
Additional comment
Sometimes, finding the rule is as much a right-brain activity as it is one of logic or deduction. Often, it is not obvious or easy. Questions like this one are intended to help you learn to think "out of the box."
find the error & explain why it is wrong: laural had to find the sin 0. what did she do wrong.
Answer:
Step A is incorrect because Lauren identified the wrong formula for sine(θ). Instead, sin(θ) would be equal to opposite / hypotenuse. Then you can substitute getting: 12/15, and once you simplify you get 4/5.
help me please.!!!..
Answer:
m = 3
Step-by-step explanation:
Answer:
m=3
Step-by-step explanation:
find the area of the figure below:
Answer:
104 ft^2
Step-by-step explanation:
Answer:
104 ft²
Step-by-step explanation:
you can solve this multiple ways, one way is: find the area of the big rectangle and subtract from it the area of the small rectangle
big rectangle
A big = 8 * (5+6+5)= 8 * 16 = 128 ft²
small rectangle
Asmall = 4*6 = 24 ft²
area of the shape
Abig -Asmall = 128-24 = 104 ft²
Find the surface area of the prism
Answer:
330
Step-by-step explanation:
The prism is a triangular prism
9 * (12 + 5 + 13) + (2 * 30)= 330
30 being the base area
Answer:
330
Step-by-step explanation:
We can break each surface area into it pieces.
For the squares:
9x13=117
9x5=45
9x12=108
For the triangles:
12x5÷2=30
12x5÷2=30
Add all of those together to get the total square area, which is
330
A model rocket is launched off the top of a platform. The height of the rocket is given by the function h(t) = -4.9t2+ 86t + 2.1, where h(t) is the height in meters and t is the time in seconds. When will the rocket's height be 200m?
Answer:
t = 14.82 and 2.72secs
Step-by-step explanation:
Given the function of the rocket height expressed as;
h(t) = -4.9t^2+ 86t + 2.1
if the rocket height is at 200m, then;
200 = -4.9t^2+ 86t + 2.1
multiplying through by 10
2000 = -49t^2 + 860t + 21
49t^2 - 860t - 21 + 2000 = 0
49t^2 - 860t + 1979 = 0
Factorize
t = 860±√(860)²-4(49)(1979)/2(49)
t = 860±√739,600-387,884/98
t = 860±√351,716/98
t = 860±593.06/98
t = 860+593.05/98 and 860-593.05/98
t = 1,453.05/98 and 266.94/98
t = 14.82 and 2.72secs
These are the times
After Charlie ate 2/3 of the remaining cake, he divided the rest equally among his 3 friends. What fraction of the pan of cake did each friend get? Write an expression and show all of your work.
Answer: 1/9 of the cake
Step-by-step explanation:
Charlie ate 2/3 of the cake which means that what is left to give the friends is:
= 1 - 2/3
= 1/3 of the cake
This was divided equally amongst three friends so the expression would be:
= 1/3 ÷ 3
This can also be written as:
= 1/3 * 1/3
= 1/9
Each friend got 1/9 of the cake.
Answer:
1/9 of the cake
Step-by-step explanation:
1 - 2/3 = 1/3 left
(1/3) / 3 = 1/9 = what each friend got
In one fell swoop we have ( 1 - 2/3) / 3 = 1/9
how would multiply polynomials if it was very difficult?
Step-by-step explanation:
The way that you would multiply polynomials is pretty easy. Say we had a binomial and a trinomial and we wanted to multiply them. As an example, we will use (2x + 4) (x^2 + x + 4).
You have to multiply each number with each other number. For example, we would multiply 2x by x^2, 2x by x, and 2x by 4 to get the first part of the bigger equation. These come out to being 2x^3 + 2x^2 + 8x when multiplied and added.
Then, you have to do the same thing for the 4 in the binomial. Multiply 4 by x^2, 4 by x, and 4 by 4 to get the second part of the bigger equation. These come out as 4x^2 + 4x + 16 when added and multiplied.
After both of those are done, simply add the two parts together and simplify.
2x^3 + 2x^2 + 8x + 4x^2 + 4x + 16
2x^3 + 6x^2 + 12x + 16
That is your example answer, and that is how you multiply polynomials.
Zeke drove 143miles in 3 hours. What is his average rate of speed (m
please help i need to get a good grade but i’m stuck
Answer:
47.6667 mph
Step-by-step explanation:
143 divided by 3=147.6667
- if you want to round it then use 47.7 mph
Answer:
47.7 mph
Step-by-step explanation:
His average rate (speed) is
143 miles
s = -------------------- = 47.7 mph
3 hours
A, B & C form the vertices of a triangle.
∠ CAB = 90°, ∠ ABC = 73° and AB = 9.4
Answer:
cos37= 9.4/BC,cos37=0.8
BC= 9.4/0.8
bc = 11.75
Answer:
BC ≈ 32.2
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos73° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AB}{BC}[/tex] = [tex]\frac{9.4}{BC}[/tex] ( multiply both sides by BC )
BC × cos73° = 9.4 ( divide both sides by cos73° )
BC = [tex]\frac{9.4}{cos73}[/tex] ≈ 32.2 ( to 3 sf )