Answer:
x+3y-10=0 I hope it helps you
In 1971, the average price of gasoline was $0.36 per gallon. In 2020, the average price of gasoline was $2.32 per gallon. a. What is the percent increase, rounded to the nearest whole number, in the cost of a gallon of gasoline from 1971 to 2020? b. What is the percent decrease, rounded to the nearest whole number, in the cost of a gallon of gasoline from 2020 to 1971? 2. Last year, DeKalb Middle School had 140 7 thgraders. The number of 8 thgraders was 125% of the number of 7 thgraders. How many 8 thgraders were there last year? 3. Find the balance of a savings account at the end of 4 years if the interest earned each year is 5.5%. The principal is $700.
Answer:
1. a. 544%
b. 84%
2. 175
3. $867.18
Step-by-step explanation:
1. a.2.32-0.36=1.96
1.96/0.36=5.44
5.44*100=544
b. 1.96/2.32=0.84
0.84*100=84
2. let x = # of 7th graders
let y = # of 8th graders
y is 125% of x
y=1.25x
x=140
y=1.25*140
y=175
3. A=P(1+r)^t
A=700(1+0.055)^4
A=867.18
a) 82
b) 42
c) 98
d) 70
Answer:
option d.
let the two angle of mnp be x and y
in the trapezoid NO and MP are parallel.
so the 28° = y and 42°=x(by alternate interior angle)
so the angle mnp= x+y
angle mnp=28°+42°=70°
Sarah drove 116 miles in 4 hours .If she drove at a constant rate,how far did she travel each hour?
Answer:
29 miles
Step-by-step explanation:
116 divided by 4
Answer: 29 mph
Hope this helps :)
(125,75)-(40,72) işleminin sonucunu bulunuz
85,03 çevap budur inşallah doğrudur iyi dersler
Could you help me with this math, I don't know how to do it?
Answer:
1) a 2) b
Step-by-step explanation:
Answer:
1.)A 2.)B
Step-by-step explanation:
The formula is y=mx+b, so whatever number is in the b spot that is your intercept and where you start and the slope is rise/run so that is how many times you move. Hope this helps:)
Four biased coins, A, B, C and D are thrown.
The probability that each coin will land on Heads is shown in the table.
Coin Probability a) (i) Which coin is least likely to land on Heads?
А
0.66
(1)
0.066
(ii) Which coin is most likely to land on Heads?
С
(1)
60%
b) What is the probability that D will land on Tails?
(1)
B
D
Coin B is going to be thrown 4000 times.
c) Work out an estimate for the number of times
coin B will land on Heads.
(2)
Total marks: 5
Answer:
Please check explanations for answer
Step-by-step explanation:
Firstly, we need all the probability in the same decimal form
P(A) = 0.66
P(B) = 0.067
P(C) = 2/3 = 0.67
P(D) = 60/100 = 0.6
a) The least likely is the smallest value of decimal
This is 0.067 which is for coin B
most likely is the highest probability; this is C which is 2/3
b. Probability that D will land on tail is 1 - probability that it lands on head
= 1 - 0.6 = 0.4
c. Mathematically that is the product of the probability and the number of times it was thrown
That will be;
0.066 * 4000
= 264 times
xis directly proportional to y.
When x=21, then y=3.
a) Express x in terms ofy.
b) Find the value ofx when y is equal to 10.
It says solve for the variable I do t understand
Answer:
x=11
Step-by-step explanation:
What is the temperature, in degrees Fahrenheit, shown on the thermometer above to the nearest integer?
Respond in the space provided.
Answer: 21
Step-by-step explanation:
Formula
(21.2°F − 32) × 5/9 = -6°C
Question 3 (5 points)
Use the graph to solve the system of linear equations.
Оа
(-4,-4)
Ob
(-1.5,-1)
ос
(2,0)
Od
(-2,-2)
Adjust the number into correct standard form.
60 x 103
Evaluate the following.
(a) |6| - 9 =
(b) |6 - 9| =
Answer:
(a) -3, (b) 3Step-by-step explanation:
(a) |6| - 9 = 6 - 9 = -3 (b) |6 - 9| = |-3| = 3What is the equation for a line that passes through the points (-4,-3) and (8,12)?
Step-by-step explanation:
vv
what is the
mode
median
mean
and range
to the numbers 24,34,32,16,45,38,28
Answer:
The mean is 31
The mode is In this case there is no mode
The median is 32
The range is 29
Helpp!! Is about angles!!! Please help!
Answer:
Triangle WRD's angles are all 60 degrees, angle W and angle R and angle D.
Triangle WRD is an equiangular, equilateral triangle. It is also an acute triangle, as all angles are less than 90 degrees.
Step-by-step explanation:
You are told that WRD has all equal sides, each 3 inches long.
In a triangle, if sides are equal, then the opposite angles are also equal. So if ALL the sides are equal, then ALL the angles are equal.
The sum of the interior angles in a triangle is always 180 degrees. Since the trhee angles are all equal and they must add up to 180 degrees, 180/3 =60, so the angles must all be 60 degrees.
Triangle are classified by sides as
*** scalene = no equal sides
*** isosceles = two equal sides
*** equilateral = all equal sides
Triangles are classified by angles as
*** right triangle = one 90 degree angle
*** obtuse triangle = one angle larger than 90 degrees
*** acute triangle = all angles less than 90 degrees
*** equiangular = all angles equal
There can be overlap in the categories, like an acute triangle also being equiangular.
May you plz help me I am struggling with slopes
Answer:
(1,-5) basically x and y -5 is your y and 1 is your rise and run.
Step-by-step explanation:
Only answer if ur sure... but ASAP please. Huge thank you to anyone that can help as i have an assignment due very soon. Brainliest if u get the correct answer!!
What is the equation of a line with a gradient of 2 that passes through (0,5)?
9514 1404 393
Answer:
y = 2x +5
Step-by-step explanation:
"Gradient" is another word for "slope." The given point (with x-coordinate equal to zero) is the y-intercept. So, it is easy to write the equation in slope-intercept form:
y = mx + b . . . . . . line with slope m and y-intercept b
y = 2x + 5
File is attached to question
Simplify :
- 1/2 (4/5 _ 8y)
Answer:
[tex] - \frac{1}{2} ( \frac{4}{5} - 8y) \\ = - \frac{4}{10} + \frac{8y}{2} \\ = - \frac{2}{5} + 4y \\ = \frac{ - 2 + 5 \times 4y}{5} = \frac{ - 2 + 20y}{5} \\ - 2 + 20y = 0 \\ 20y = 2 \\ y = \frac{1}{10} [/tex]
A central angle measures 270 degrees . If the radius of the circle is 12 cm , what is the length of the arc intercepted by the central angle ?
Answer:
12 R cm
Step-by-step explanation:
A dog and a cat together costs $110. If dog costs $100 more than the cat. What is the cost of the cat?
Answer:
cat costs $10
Step-by-step explanation:
Answer:
$5
Step-by-step explanation:
$110=2x+$100 $10=2x x=5
Explain 3 areas in everyday life where you use math.
Answer:
1. Banking and Money
2. Baking
3. Art
Step-by-step explanation:
Kai is developing a multimedia presentation on multicellular organisms. Which of the following will she include in her report?
A. fungi
B. yeasts
C. bacteria
D. prokaryotes
Answer:
Fungi
Step-by-step explanation:
The equation h=60-4m gives the height h (in inches) of the water in a tank m minutes after it starts to drain
Answer:
40m
Step-by-step explanation:
Complete question
The equations h = 60 - 4m gives the height h (in inches) of the water in a tank m minutes after it starts to drain. How high is the water after 5 minutes.
To get the height of the water after 5minutes, we will find h at when m = 5
h = 60 -4 (5)
h = 60 - 20
h = 40m
Hence the water is 40m high after 5minutes
How many positives and negatives are in 10 + (-5)
Answer:
2
Step-by-step explanation:
What is the product of (–8.2)(1.9)?
–15.58
–6.3
6.3
15.58
Answer:
-15.58
Step-by-step explanation:
Answer:
-15.58
Step-by-step explanation:
Multiply the traditional way
-8.2
x1.9
-------
738
820
----------
15.58
But because you're multiplying a positive and a negative, the answer will be negative leaving you with (-15.58)
8xy+4xy^2
what is the result ?
Answer:
4xy(2+y)
Step-by-step explanation:
Factor 4 x y out of 8 x y .
[tex]4xy(2)+4xy^2[/tex]
Factor 4xy out of [tex]4xy^2[/tex]
4xy(2) + 4xy(y)
Factor 4 x y out of 4 x y ( 2 ) + 4 x y ( y ) .
4xy(2+y)
hope this helps :)
HELP (ENGLISH)
Amira is preheating her oven before using it to bake. The initial temperature of the oven is 75° and the temperature will increase at a rate of 20° per minute after being turned on. What is the temperature of the oven 9 minutes after being turned on? What is the temperature of the oven tt minutes after being turned on?
Help!! will give brainiest! please no joke answers this is due by midnight
solve by graphing
2x+4y=8
2x-y=2
point to where they intersect ( , )