Answer: 78
Step-by-step explanation:
Answer: Sofia has raised 78 dollars so far
Step-by-step explanation: 78 x 4 = 312
312 - 78 = 234 1
234 - 78 = 156 2
156 - 78 = 78 3
The average age of three people running for election is 42. A fourth person joins the race and the average drops to 40. What is the fourth person's age?
Call the four people [tex]abc[/tex] and [tex]d[/tex].
We know:
[tex]\frac{a+b+c}{3}[/tex][tex]=42[/tex]
and
[tex]\frac{a+b+c+d}{4}[/tex][tex]=40[/tex]
Thus:
[tex]a + b + c = 126[/tex]
[tex]\frac{126+4}{4} = 40[/tex]
[tex]126 + d =160[/tex]
[tex]d = 34[/tex]
SYSTEMS OF EQUATIONS- How many solutions?
Sy = 5x + 12
y = 5x + 18
O one solution
O no solution
O many solutions
Answer:
No solutions
Step-by-step explanation:
They have the same slope(5), meaning that they are parallel. since they are parallel they will never touch, thus there are no solutions
What is the value of x?
45°
m
1(2x - 5)°
n
Answer:
x = 70
Step-by-step explanation:
The 2 given angles are same- side interior angles and are supplementary, that is sum to 180° , then
45 + 2x - 5 = 180, that is
2x + 40 = 180 ( subtract 40 from both sides )
2x = 140 ( divide both sides by 2 )
x = 70
What is the sum of the two expressions?
(2/5x + 3) + (1/5x − 1)
Answer:2+ 3/5x
Step-by-step explanation:
Need a little help here.
Answer:
sorry i will answer if you make me branlyist
Step-by-step explanation:
PLS HELP WILL GIVE BRAINIEST
A student drops a rubber ball onto a surface.
Answer:
I’m not sure I am correct but I think it is either c or d.
Step-by-step explanation:
Answer:
Its C my guy
Step-by-step explanation:
Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
Can someone tell me what’s at the slope is for this one ?
Answer:
to find the slope of any graph
use this equation
Step-by-step explanation:
[tex]m = \frac{y2 - y1}{x2 - x1} \\ \frac{8 - 0}{2 - 0} \\ m = 4[/tex]
At 6 AM, the temperature outside was -12 degrees Celsius. The temperature increased by 5 degrees every hour. Which equation describes the temperature in degrees, d(h), to hours, h, after 6 AM?
please help ill give brainliest
yall i need just 1 more please i need to turn this in asap!help a girl out pls
Answer:
a. 13.3
b. 16.3
Step-by-step explanation:
Hope this is right.
Please help me 15 points for doing both 3 and 4
ok what you need in 3 and 4
Answer:
free points
Step-by-step explanation:
hahaha
What percent is represented by the shaded portion on this 10×10 grid
Answer:
75/100% is the correct answer
Step-by-step explanation:
the second one.... you count the shaded in out of 100
A TV programme begins at 7:45 p.m. and ends 50 minutes later
At what time does it finish?
A TV programme begins at 7:45 p.m. and ends 50 minutes later.At 8:35 pm time it will finish.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
It is given that a TV programme begins at 7:45 p.m. and ends 50 minutes later.
Addition is one of the fundamental mathematical operations we utilize on a daily basis. We employ addition of numbers in a variety of contexts. Working with time or money, such as adding up bills and receipts, is one of the most frequent daily uses for adding numbers.
We have to apply the addition operation by splittiong the time as,
=7:45 p.m + 50 minute
=7:45 p.m + 15 minute + 35 minute
=8:00 pm + 35 minute
=8:35 pm
Thus, a TV programme begins at 7:45 p.m. and ends 50 minutes later.At 8:35 pm time it will finish.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
#SPJ2
28x -41y - 50 +8y - 36x - 87
please help asap
both question
Answer:
5m=50, m=10
Step-by-step explanation:
Answer: A
Step-by-step explanation:
The scale is equal. There are 5 m's. Thats the same thing as 5 x m. Which the same thing as 5m. So yes, 5m = 50.
order these from least to greatest
9, 3, π
Answer:
3 pi 9
Step-by-step explanation:
Annie spent 2.5 hours doing homework. She spent 1/3 of the time on her history project. She spent 3/5 of the remaining time solving math problems. After that, Annie spent all remaining time writing an essay. How much time did Annie spend writing the essay?
Step-by-step explanation:
2.5 hours = 150 min
1/3 of 150 is 50 min, which means she spent 50 min on her history project = 100 min leftover
3/5 of 100 min is 60 min (1 hour) = 40 min leftover
She spent 40 min writing her essay
hope this helps <3
Answer: 40 min or 2/3 an hour
Step-by-step explanation: :)
Solve for x
35 = 5(x + 9)
X =
Answer:
-2
Step-by-step explanation:
35 = 5x + 45
So - 45 from both side
-10 = 5x
Divide both side by 5
-2 = x
X = -2
Pls help I’m bad at math no matter how much I try
Answer:
9/1 = 0.9
2 = 2.0
3 1/10 = 3.1
10 = 100
Step-by-step explanation:
Maria has purchased a basic stained glass kit for $100. She plans to make stained glass suncatchers and
sell them. She estimates that the materials for making each suncatcher will cost $13. Model this situation
with a rational function that gives the average cost of a stained glass suncatcher when the cost of the kit
is included in the calculation. Use the graph of the function to determine the minimum number of
suncatchers that brings the average cost below $22.50.
The minimum number of suncatchers that brings the average cost below
$22.50 is
Answer:
Step-by-step explanation:
fixed cost = 100
variable cost = 13
soooo....
cost = (13x + 100)/x
the questions wants to know when cost < 22.50
22.5 > (13x+100)/x
look at graph attached ;)
it looks to me like it's at 11
22.5 > (13(11) + 100) / 11
22.5 > 22.09
try 10
22.5 > (13(10) +100)/10
22.5 > 23 not true so yes.. 11 is when the cost goes below 22.50
Answer:
Y’all the correct answer is 10
i need to identify the slope and the y-intercept of the line with a given equation, the given equation is y = 1/2x +5 . i need to graph it aswell.
Answer:
y-intercept: 5
slope: 1/2
Step-by-step explanation:
The equation y=1/2x+5 is an example of y-intercept form(y=mx+b). This is where b represents the y-intercept and m represents the slope. I will not graph this for you but can explain it.
First plot the y-intercept on the graph. (0.5). Then use the slope to find the next point off of the y-intercept. So for example, the next point would be (2,6).
HELP MEEEEEEE PLEASE > Which set of ordered pairs is a function?
((-5,1). (-3, 2). (-1, 3), (0, 4). (3. 5)
{(-6, -4), (-4, -2), (0, o). (-4, 2). (-6,4))
((-2). (-4,2), (0. 3), (4. 1), (-2 5))
{(-1,5), (-, 4), (-1, 3), (-1, 2). (-1, )})
Done ->
Answer:
The first choice
Step-by-step explanation:
The x values do not repeat (resubmitting since a bot deleted my first answer)
plz help will give brainliest!!
Answer:
66 R30
Step-by-step explanation:
:) :) :/ probably wrong
Answer:
66.4918032787
Step-by-step explanation:
I'm afraid that my answer isn't an answer choice you have, but if I were you, I'd go with 66, as it's the closest.
As for how I got my answer, you can just use a calculator.
In a survey of 3,500 people who owned a certain type of car,1,925 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answer: percent of the people surveyed that were satisfied with the car= 55%
Step-by-step explanation:
Step 1
Total Number of people in the survey who owned certain type of car = 3,500
Number of people that would buy that type of car again = people surveyed that were satisfied with the car= 1,925
Step 2
Percentage of people satisfied with the car= people surveyed that were satisfied with the car/Total Number of people in the survey who owned certain type of car x 100
=1925 / 3500 x 100
=0.55 x 100
=55%
There are 25 students in the class. 36% of the students ate hotdogs for lunch. How many students ate hotdogs?
Answer:
9
Step-by-step explanation:
25 times .36 is 9!
I hope this helps!
Answer:
36% x 25= 9
9 students ate hotdogs
Step-by-step explanation:
just find out how many students are 36% of the class, all i did was take the precent of the class and multiplied it by the number of students in the class in this case 25
PEASE PLEASE HELP & EXPLAIN
Answer:the answer is NO.
Step-by-step explanation:
Because the number 9, repeats itself in the domain.
If john had 2 apples and gave sandy 1 how many do they together
super easy
Answer:
2
Step-by-step explanation:
no. of apples with John= 2
no. of apple Sandy got= 1
so, no. of apple remaining with John= 2-1= 1
therefore,
altogether = 1+ 1 = 2.
hence, they have 2 apples altogether
Answer:
2
John have 2 apples and he gave 1 apple to sandy , John have 1 apple left and sandy also have 1 apple so 1+1 =2
An account with an initial deposit of 3,500 earns 7.25% annual interest, compounded continuously. How much will the account be worth after 30 years? Round to the nearest cent.
Answer: $28,575.05
Step-by-step explanation:
Formula: FV = (1+r/n)^nt
FV = future value of the deposit
P = principal or amount of money deposited
r = annual interest rate (in decimal form)
n = number of times compounded per year
t = time in years.
3,500(1+7.25%)^30=28,575.05468
5(2x - 5) + 10x = 75
Answer:
x = 5
Step-by-step explanation:
5(2x-5) +10x = 75
10x -25 +10x = 75
20x - 25 = 75
20x = 100
x = 5