Answer:
30!
Step-by-step explanation:
If two elves make 5 toys per 10 minutes, then four elves would make 10 toys per 10 minutes!
3x10=30
Explain the steps you took to solve parts b and c. Explain why you did the operations you did,and why the answers are positive or negative. Use at least 4 pieces of unit vocabulary correctly and appropriately in your response.
Answer:
What!? If you could elaborate more i could help you!
Use the substitution method to solve the system of equations. Enter your
answer as an ordered pair.
y = 3x-4
X = 9
Answer: 9,24
Step-by-step explanation:
y = 3 (9) - 4
y = 27 - 4
y = 23
x = 9
9, 23
Can I still pass the School Year if I failed the 1st and 2nd 9 weeks? Someone please answer
( HIGHSCHOOL)
Answer:
Step-by-step explanation:
yes you can depending on your grades in that class though you might have to redo the semester in your free time if your grade is not high enough
The radius of a spherical ball is increasing at a rate of 2 cm/min. At exactly what rate (in cm2/min) is the surface area of the ball increasing when the radius is 9 cm?
Answer:
9th min?
Step-by-step explanation:
lol sorry im set 4 maths
144π cm²/min is the surface area of the ball increasing when the radius is 9 cm.
What is Surface area?The surface area of a solid object is a measure of the total area that the surface of the object occupies.
Given,
Radius of a spherical ball is increasing at a rate of 2 cm/min.
We need to find exactly what rate (in cm2/min) is the surface area of the ball increasing when the radius is 9 cm
S = surface area at time t, and r = radius at time t
r=9cm
dr/dt = 2 cm/min
S = 4πr²
Differentiate with respect to t
ds/dt=2.4πrdr/dt
=8πr(2)
=16πr
=16π(9cm)
=144π cm²/min
Hence 144π cm²/min is the surface area of the ball increasing when the radius is 9 cm.
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Please help me it due today at 7:10pm please help me
Answer:
that is easy false hope u get it to By 7:10
In the diagram above, Z1 = 40°.
Find the measure of Z2.
Z2 = [?]°
Answer:
40 = <2
Step-by-step explanation:
<1 and <2 are corresponding angles and corresponding angles are equal when the lines are parallel
<1 = <2
40 = <2
Which expressions can be used to represent the sum of 3 consecutive odd integers?
Answer choices:
A. n, n+2, n+4
B. n, n+1, n+2
C. n, n+1, n+3
D. n+1, n+2, n+3
The sum of 3 consecutive odd natural nos. can be represented by n + ( n+2 ) + (n + 4 ).
What are consecutive nos. ?Consecutive nos. are every no. after each other.
According to the given question we have to represent the sum of 3 consecutive odd natural nos.
We know that consecutive odd natural nos. come after every two digits.
∴ Assuming the first odd natural no. to be n.
So, Next odd natural no. will be (n + 2) and the third consecutive odd natural no. will be (n + 2) + 2 which is = (n + 4).
∴ The sum of 3 consecutive natural numbers can be represented by
n + (n + 2) + (n+4).
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What is the answer to -0.8x+40-8x-35
Answer:
75
Step-by-step explanation:
Answer:
25/44
Step-by-step explanation:
-0.8x+40-8x-35
-8.8x+5
-8.8x=-5
Minus sign cancel on both side
X=5/8.8
X=50/88
X=25/44
So value of x is 25/44
Simplify 2x2 - y for x = 3 and y = -2.
Answer:
16
Step-by-step explanation:
2x2-y
2(3)2-2
2(9)-2
18-2
16
If 18 g of a radioactive substance are present initially and 9 yr later only 9 g remain, how much of the substance will be present after 12 yr?
After 12 yr there will be g of a radioactive substance.
(Round the final answer to three decimal places as needed. Round all intermediate values to seven decimal places as needed.)
Answer:
Him hhhuuu vividly
Step-by-step explanation:
Suppose that in 8 minutes, 64 gallons of water came out of a pipe. What was the rate in gallons per minute?
Answer:
it should be 8
Step-by-step explanation:
64 divided by 8 is 8
Sarah buys a car originally priced at $25,000 at a discount rate of 1/5 off the original price. How much does Sarah pay for the car after the discount?
Answer:
20,000 dolllars
Step-by-step explanation:
i think
When a number is decreased by 10% of itself, the result is 27. What is the number?
Answer:
3090%. 27
--------- -------------
100%. x
cross multiply and then divide by the number withh and x
Step-by-step explanation:
Answer:
3 is ten percent of the number
Step-by-step explanation:
because if 27 is 90% then 30 is 100%
Which statement best describes points P and Q?
Answer:
i need more info
Step-by-step explanation:
Please help 30 points If do it is also timed so hurry
Answer:
It's the first one.
Step-by-step explanation:
0.6 represents 60%.
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Answer:
28, 60, 27 and 17, 24,17
Step-by-step explanation:
The rule for triangle side lengths is that 2 sides gotta add up to be larger than the other. So ones like 40, 22, 14 wouldnt work since 22 and 14 only add up to 36. If u think about it, the lines wouldnt actually connect in real life.
What is the slope of a line that contains the points (-12, -1) and (-3, -4)?
Answer:
-1/3
Step-by-step explanation:
y2-y1 over x2-x1
or you can do rise over run so count up or down and count how many units the the right it goes to find slope.
So
-4 - (-1)
______
-3 - (-12)
If you plug the numbers in
so you get
-4 + 1
______
-3 + 12
and you solve
-3
_____
9
-1
___
3
i tink u no how to solve now
yay
gg
hope this helps!
What is the playing surface called where the college basketball semi-finals are played?
Answer:
The answer is "floor".
Step-by-step explanation:
The playground on which the semi-finals of basketball was performed is called the Floor. It also has a double-dimensional or three-dimensional ground throughout the form of a square or a rectangle. It may be a Cube, or Cuboid, which would be a Pyramid whenever a surface becomes three-dimensional elevated beyond Earth's level.
I needs hheeellllppppp
Answer:
It's C.7
Step-by-step explanation:
Use the foil method
help meeeee this is due today ALOT OF POINTS IF YOU GET IT RIGHT its for a unit test aka alot of my grade and i have a c in this class
The price of gas rose from $2.40 per gallon in January to $3.00 per gallon in April. What was the percent increase based on the original price?
Sara reduced the time it takes her to run a mile from 12 minutes to 8 minutes. Which is closest to Sara’s percent decrease in the time it takes her to run a mile?
At Marco's Pizza House it costs $4.00 to make a small pizza. If they intend to mark-up the pizza by 80% what will the cost be for customers?
Answer:
1. is 25%
Step-by-step explanation:
3.00 - 0.6 = 2.4
Neil is buying steak for a cookout on Saturday. Steak is on sale for $9.62 per pound. If he
buys 7.5 pounds of steak, how much money does he spend?
Answer:
he would spend $69.26
Step-by-step explanation:
you would multiply the amount of steak he wants to by, times the amount the steak costs. so 9.62x7.5=69.26
Need and answer ASAP please helppp
1. Name the line that represents the diameter
2. Name the line that represent the radius
Answer:
Diameter is Line D and Radius is Line R
Step-by-step explanation:
I don't really know how to explain it because I've known this for years now lol.
HELP NEED ANSWERS TO EDGEMS
LESSON 4.1 GRAPHING USING SLOPE INTERCEPT FORM
HELP HELP ME GET A GOOD GRADE AND ANSWER THESE QUESTIONS FOR ME PLEASE
1. (0, 1) , (2, -9) , (3, -14) , (-6, 31)
2. The amount she pays back each week.
help asap plspls !! :)
Answer:
16/9 pounds or 1.667... pounds
Step-by-step explanation:
8/9 + 1/9 = 1
2/3=6/9
1 + 6/9 = 16/9 or 1.667
Mary brings 350 erasers to school. After she gives each of her 25 classmates and herself an equal number of erasers, she will give any leftover erasers to her teacher.
a)How many erasers will each student receive?
b) How many erasers will Mary’s teacher receive?
Answer:
snsjkfnjkfnkjsefjksenfkjsenfsj
Step-by-step explanation:
Answer:
A. 14 B.0 350 ÷25= 14
Step-by-step explanation:
Hoped I helped btw im Eve Have an amazing day and consider marking this as brainliest if you do thank you in advanced!
Lines A and B are parallel lines. Find the measures of
angles 1, 2 and 3.
A
21 57°
22
33°
23
B+
a mzl=
b. m2 =
cm3 =
13)
Step-by-step explanation:
angle 3 = 57deg (alt. angles, //lines)
angle 2 = 180 - 57 - 33 = 90deg (angles in a triangle)
angle 1 = 180 - 90 - 57 = 33 deg (angles on a str line are supplementary)
Topic: angle properties
If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!
The measures of angles 1, 2 and 3 are, 33, 90, 57 degree.
What is an angle?In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.
here, we have,
from the given diagram,
angle 3 = 57deg (alt. angles, //lines)
angle 2 = 180 - 57 - 33 = 90deg (angles in a triangle)
angle 1 = 180 - 90 - 57 = 33 deg (angles on a str line are supplementary)
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** SOLVED **
Allison has some pennies and some nickels. She has no more than 23 coins worth a minimum of $0.75 combined. If Allison has 6 pennies, determine all possible values for the number of nickels that she could have. Your answer should be a comma separated list of values. If there are no possible solutions, submit an empty answer.
Answer: {14, 15, 16, 17}
Answer:
15 i think im not completely sure
Step-by-step explanation:
a turntable has a diameter of 40 cm what is its circumference
Answer:
125.6 cm
Step-by-step explanation:
Diameter (d) = 40 cm
Circumference = πd
= 3.14 * 40
= 125.6 cm
PLEASE HELP HEHE!!
In a state, 30% of all people own a scooter, and 41% of all people have a skateboard and bicycle. Find the probability of choosing a person that has a scooter and then choosing another person sequentially who has a skateboard and scooter? Round answer to nearest tenth and include percent sign.
Answer:
demos los fdeoms
Step-by-step explanation:
14
If your bike wheel has a diameter of 2.5 feet, how many times does the wheel make a full rotation?
Answer:
159 times
Step-by-step explanation:
Answer:
every 2.5 feet
Step-by-step explanation:
the diameter is 2.5feet so to make 1 full rotation you need to move 2.5 feet