you can answer 5 math problems in 4 mins how many math problems can you complete in 12 minutes? i need help!!
Answer:
your answer,
you can answer 15 math problems in 12 minutes
Find the measure to angle A
Answer:
45
Step-by-step explanation:
Xander writes math textbooks that sell x dollars each. he received a bonus of $25,000 for signing a contract, and he receives 8% commission on each book sale. express the total amount of income xander earns from selling y books algebraically
The total amount of income Xander earns from selling y books algebraically is C = 25000 + xy + 0.08y.
What is an equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenarios.
In this situation, Xander writes math textbooks that sell x dollars each, he received a bonus of $25,000 for signing a contract, and he receives 8% commission on each book sale.
c = total amount
y = number of books.
The total amount of income will be:
= 25000 + (x × y) + (8% × y)
= 25000 + xy + (0.08 × y)
C = 25000 + xy + 0.08y
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. John tossed a coin 5 times. What is the probability that it landed on tails all 5 times
Answer:
1/5. d
Step-by-step explanation:
sorry if I'm wrong
In the following figure, m || QR. Then, the measure of ∠QPR is
Given:
m || QR
To find:
The measure of ∠QPR.
Solution:
Since m || QR and a transversal line intersect them, therefore the alternate interior angles are equal.
Let points S and T lie on the line m. S is on the right and T is on the left side of point P.
[tex]m\angle RPS=m\angle PRQ[/tex]
[tex]m\angle RPS=45^\circ[/tex]
Now, angles TPQ, QPR and RPS lie on the one side of a straight line. It means, their sum is 180 degrees.
[tex]m\angle TPQ+m\angle QPR+m\angle RPS=180^\circ[/tex]
[tex]50^\circ+m\angle QPR+45^\circ=180^\circ[/tex]
[tex]m\angle QPR+95^\circ=180^\circ[/tex]
[tex]m\angle QPR=180^\circ-95^\circ[/tex]
[tex]m\angle QPR=85^\circ[/tex]
Therefore, the measure of angle QPR is 85 degrees.
HELP IM SO CLOSE TO BEING FINISHED
Answer:
Step-by-step explanation:
we know that the interior angles are supplementary,
(2x-10)+(4x+16)=180
2x-10+4x+16=180
6x=180+6
6x=186
x=31
HELP ASAP: How far apart are the spider and the fly?(it needs to be written in a equation, then round to the nearest 10 if necessary)
It is a right triangle. The distance is the hypotenuse of the triangle.
Use the Pythagorean theorem:
Distance = sqrt(3^2 + 2^2)
Distance = sqrt( 9 + 4)
Distance = sqrt(13) (exact distance)
As a decimal sqrt(13) = 3.60555
The HCF of 60 and 108 is 12. write their LCM
Answer:
What is the LCM of 60 and 108? The LCM of 60 and 108 is 540.
Step-by-step explanation:
What is the LCM of 60 and 108? The LCM of 60 and 108 is 540.
The HCF of 60 and 108 is 540.
What is HCF?It is the greatest factor present in between given two or more numbers.To find the HCF of numbers: - express each number as product of prime numbers. - find the product of the least powers of common prime number.What is LCM?It is the least number which is exactly divisible by two or more numbers. To find the least common multiple, - express each number as a product of prime numbers. - find the product highest power of the prime numbersFor given question,
We have been given the HCF of 60 and 108 is 12.
We know, the product of LCM and HCF of numbers is equivalent to the product of the given numbers.
⇒ LCM × 12 = 60 × 108
⇒ LCM = 540
Therefore, the HCF of 60 and 108 is 540.
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Johnny has 30 marbles. Mark has m marbles. If Johnny has 10 times as many marbles as Mark, write an equation that shows how many marbles Mark has.
Answer: 3
Step-by-step explanation:
From the question, we are informed that Johnny has 30 marbles while Mark has m marbles.
Since Johnny has 10 times as many marbles as Mark, it means that Johnny has: = 10 × m = 10m
Therefore, 10m = 30
m = 30/10
m = 3
Mark has 3 marbles
Find the slope and y-intercept value in 7x – 2y = -16.
What is the solution to this system of linear equations?
x-3y=-2
x+3y=16
1.(7,3)
2.(3,7)
3.(-2,-3)
4.(-3,-2)
Do I have this right this my last question I need help
Answer:
Yes, it is
Step-by-step explanation:
For the first part is 10 per people = y = 10x
And the second part is 2 per people = y = 2x
So the two equations are
y = 10x
and
y = 2x
Hope this helped!
Have a supercalifragilisticexpialidocious day!
if 1 pound of candy is 3.50 how much candy can you get with one dollar?
Answer:
Step-by-step explanation:
16 divided by $3.50 = 4.5
Answer:
0.286 pounds
Step-by-step explanation:
one pound=$3.50
x pounds=$1.00
then
1/3.5=0.286 pounds
check:
0.285 pounds per dollar x $3.50=1 pound
A candy store sells walnuts for $9 per pound, and pecans for $3 per pound. If the store wants to create a bag of mixed nuts that sells for $6 per pound, how many pounds of pecans must be mixed with four-pound of walnuts?
Please help fast, this is urgent xx.
Answer:
2 lbs
Step-by-step explanation:
it's kind of just a guess, the question is not that clear.
Help please I will give brainlest
If G is the incenter of triangle ABC, find each measure
Answer:
m∠ABG = 20 degrees
m∠BCA = 22 degrees
m∠BAC = 118 degrees
m∠BAG = 59 degrees
DG = 4
BE = 12.4
BG = 11.7
GC = 20.4
Step-by-step explanation:
The given parameters are;
m∠CBG = 20°, m∠BCG = 11°
The incenter of a triangle is the point where the three bisectors of ΔABC meets
m∠ABG = m∠CBG = 20° by definition of angle bisector
m∠ABG = 20°
m∠ACG = m∠BCG = 11° by definition of angle bisector
m∠BCA = m∠ACG + m∠BCG = 11° + 11° = 22°
m∠ABC = m∠ABG + m∠CBG = 20° + 20° = 40°
m∠BAC = 180° - (m∠BCA+m∠ABC) = 180° - (40° + 22°) = 118°
m∠BAG = m∠CAG by definition of angle bisector
m∠BAC = 118° = m∠BAG + m∠CAG = m∠BAG + m∠BAG = 2 × m∠BAG
2 × mBAG = 118°
m∠BAG = 118°/2 = 59°
m∠BAG = 59°
Given that "G" is the incenter of the triangle ABC, we have;
GF = GE = DG = The radius of the incircle of the triangle = 4
Therefore, by Pythagoras' theorem, we have;
BG = √(11² + 4²) = √137 ≈ 11.7
BE = √((BG)² + 4²) = √(137 + 4²) = √153 ≈ 12.4
GC = √(20² + 4²) = √416= 4·√26 ≈ 20.4
Applying the definition of the incenter of a triangle, the measures in triangle ABC where G is the incenter are:
[tex]\mathbf{m \angle ABG = 20^{\circ}}[/tex][tex]\mathbf{m \angle BCA = 22^{\circ}}[/tex][tex]\mathbf{m \angle BAC = 118^{\circ}}[/tex][tex]\mathbf{m \angle BAG = 59^{\circ}}[/tex]DG = 4BE = 10.99BG = 11.7GC = 20.4Recall the following facts about the incenter of a triangle:
The incenter of a triangle is the point where the three angle bisectors that divides each angle vertex into two intersect each other.
The incenter also, is a point equidistant to all three sides of the triangle at right angle.
Applying the properties above, the measures in the image can be calculated as shown below.
Given:
[tex]m \angle EBG = 20^{\circ}\\\\m \angle ECG = 11^{\circ}\\\\CF = 20\\\\EG = 4\\\\BD = 11[/tex]
Find [tex]m \angle ABG[/tex]:
[tex]m \angle ABG = m \angle EBG[/tex] (angle bisector definition)
Substitute[tex]\mathbf{m \angle ABG = 20^{\circ}}[/tex]
Find [tex]m \angle BCA[/tex]:
[tex]m \angle BCA = 2(m \angle ECG)[/tex] (angle bisector definition)
Substitute[tex]m \angle BCA = 2(11)\\\\\mathbf{m \angle BCA = 22^{\circ}}[/tex]
Find [tex]m \angle BAC[/tex]:
[tex]m \angle BAC = 180 - (m \angle CBA + m \angle BCA)[/tex] (sum of triangle definition)
Substitute[tex]m \angle BAC = 180 - (40 + 22)\\\\\mathbf{m \angle BAC = 118^{\circ}}[/tex]
Find [tex]m \angle BAG[/tex]:
[tex]m \angle BAG = \frac{1}{2} (m \angle BAC)[/tex] (angle bisector definition)
Substitute[tex]m \angle BAG = \frac{1}{2} (118)\\\\\mathbf{m \angle BAG = 59^{\circ}}[/tex]
Find DG:
[tex]DG = EG[/tex] (Perpendicular bisectors of the sides of a the triangle are equal in length from the incenter of a triangle)
Substitute[tex]\mathbf{DG = 4}[/tex]
Find BG:
[tex]BG = \sqrt{BD^2 + DG^2}[/tex] (Pythagorean Theorem)
Substitute[tex]BG = \sqrt{11^2 + 4^2} \\\\BG = \sqrt{137} \\\\\mathbf{BG = 11.7}[/tex]
Find BE:
[tex]BE = \sqrt{BG^2 - EG^2}[/tex] (Pythagorean Theorem)
Substitute[tex]BE = \sqrt{11.7^2 - 4^2} \\\\BE = \sqrt{120.89} \\\\\mathbf{BE = 10.99}[/tex]
Find GC:
[tex]GC = \sqrt{CF^2 + FG^2}[/tex] (Pythagorean Theorem)
Substitute[tex]GC = \sqrt{20^2 + 4^2} \\\\GC = \sqrt{416} \\\\\mathbf{GC = 20.4}[/tex]
In summary, applying the definition of the incenter of a triangle, the measures in triangle ABC where G is the incenter are:
[tex]\mathbf{m \angle ABG = 20^{\circ}}[/tex][tex]\mathbf{m \angle BCA = 22^{\circ}}[/tex][tex]\mathbf{m \angle BAC = 118^{\circ}}[/tex][tex]\mathbf{m \angle BAG = 59^{\circ}}[/tex]DG = 4BE = 10.99BG = 11.7GC = 20.4Learn more here:
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Write the equation of the line with slope -2 through the point (7, -1)
Answer:
y= -2x +13
Step-by-step explanation:
Please help, quick math, and a short explanation on how you got the answer! Thank you!!
Answer:
this is an iscoceles triangle.
I know this because 2 of the sides are equal in length
Therefore,
AB=AC
3x-5=-2x+15
x-5=15
x=20
if x=20 then BC=2(20)
BC=40
Step-by-step explanation:
A spinner with 8 sections is shown below. If you were to spin the spinner 200 times, how many times can you expect to land on yellow or purple?
Answer:
125 times out of 200 spins or 125/200
Step-by-step explanation:
Set up your equation:
5/8 = x/200
Cross Multiply:
1000 = 8x
x = 125
Perform the indicated operations.
6a? - 5a - 6
9a
9q3+279 + 14
=
Answer:
9q^3+293
Step-by-step explanation:
Help me pleaseeeeeeeeeeeeeeeeeeeeee
Answer:
11
Step-by-step explanation:
90-35=55
55=5x
x=11
good luck
A motorboat travels Downstream on a river for 5 hours. The speed of the current is 2 km/h. The river flows into a still Lake and the motorboat continues for two more hours. The distance covered by the boat on the river was 40 km more than the distance that was covered on the lake. What is the speed of the motorboat in still water?
Answer:
I think it is 10 km/hr
Step-by-step explanation:
5 hrs = 40 more with 2 km/hr current
2 hrs= less 40 no current
40-2x5=30
30 without current for three hours
30/3=10 km/hr no current
CHECK
10x2=20
10x5=50+2x5=60
The speed of the motorboat in still water is 10 km/hr
A motorboat travels downstream on a river for 5 hours.
The speed of the current = 2 km/h
The river flows into a still lake and the motorboat continues for two more hours.
The distance covered by the boat on the river was 40 km more than the distance that was covered on the lake.
We have to determine the speed of the motorboat in still water
Let the speed of motorboat in still water = m km/h
Given that
The speed of river current = 2 km/hr
The river runs into a still lake
The motorboat continues to travel for 2 more hours
The distance traveled by the motorboat in two more hours in the lake = 2m km
The distance covered by the boat in the river = (40 +2m) km
Net speed of the boat in the river = (m +2 ) km/hr
Let t be the time spent by motorboat into the river.
[tex]\rm Time = \dfrac{Distance}{Speed}[/tex]
[tex]\rm t = \dfrac{40+2m }{m +2}..........(1)[/tex]
Given that the motorboat travels downstream of the river for 5 hrs
so on putting t = 5 in equation (1).
[tex]\rm 5 = \dfrac{40 +2m }{m+2}\\\\5m +10 = 40 +2m\\5m -2m = 40-10\\3m = 30\\m = 10 km/h[/tex]
So the speed of the motorboat in still water is 10 km/hr
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Evaluate-4(5)(-2) I really need this for homework
Answer:
40
Step-by-step explanation:
-4 × 5 = -20-20 × -2 = 40I hope this helps!
Answer:
40
Explanation:
Multiply -4 by 5
Then, Multiply -20 by -2
Which equals 40
Hope this helps:)
brainly if you can help me
Answer:
(1, 6)
Step-by-step explanation:
Use elimination or substitution (elimination is easier)
Find the value of x
A. X=16
B. X=7
C. X=56
D. X=4
Answer:
I think answer is
D. X=4
:-))
answer correctly and i’ll mark brainliest, pls help
Answer:
22.5% increase.
Step-by-step explanation:
Because her collection grows by 9, that means it increases by 9/40 total. As a decimal, this would be 0.225. Then, as a percent you multiply that by 100 to get 22.5%. Pilar's collection increased by 22.5%
Answer:
hahaha is
easy hmm..........
if a dish is made with 6 1/3 cups of pasta and one serving of the pasta is 0.2 cups . how many servings of pasta were in the dish?
Answer:
15.83 servings
last one pls help for brainlest
Answer:
24/30-5/30=19/30
this is the answer
Answer:
It's 24/30 and 5/30 and it's 19/30
Step-by-step explanation:
Heather designed some artwork that she plans to sell. She spent $22 on supplies
and will price the artwork at 80% markup. What will be her selling price?
Answer: She should sell her artwork for $39.60 or almost $40.
Step-by-step explanation:
First you need to find out what 80% of 22 is, which is 17.6, then you add that price to the price of her supplies.
22+17.6=$39.60
An elected official surveyed residents of a town to assess their satisfaction with city services. The survey includes
both those who own and those who rent their homes.
Level of Satisfaction
EEEE
High
Medium
Low
Total
Owners
26
34
18
78
Renters
15
12
5
22
Total
41
46
23
110
What proportion of those surveyed have low satisfaction with city services?
O 0.2091
O 0.2308
0.2644
O 0.3727
Save and Exit
Next
Submit
Answer:
A
Step-by-step explanation:
Not much of a reason but thats what i g ot
Answer:
a
Step-by-step explanation: