The Ella works 16 hours after school and 8 hours before school.
What is an mathematical expression?
Expression in mathematics is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Here, it is given that :
Ella works two part-time jobs, one before school and one after school. Before school, she earns $11.25/hour, and after school "a" she earns $11..75/hour and She works twice as many hours after school that is :
a = 2b ......(1)
also, 11.25a + 11.75b = 278....(2)
now, solving for a and b :
11.25a + 11.75b = 278
11.25(2b) + 11.75b = 278
b = 278/34.25
b ≈ 8 hours
Now, the value of a will be 2b = 16 hours
Therefore, the Ella works 16 hours after school and 8 hours before school.
Read more about system of equations at :
https://brainly.com/question/12895249
#SPJ5
6 + 3(x + 4)
PLEASE HELP!!!! I will give brainliest
3x+18
Step-by-step explanation:
Answer:
3x+18
Step-by-step explanation:
Is the answer
answer
The water level of a river was measured each day during a two-week period. The graph
models the linear relationship between the water level of the river in feet and the number of
days the water level was measured.
Water Level of River
28
24
20
16
Water Level (ft)
12
2
12
6 8 10
Number of Days
Which statement best describes the y-intercept of the graph?
F The water level increased by 0.25 ft per day.
G The maximum water level was 19.5 ft.
The initial water level was 16 ft.
3 The water level was measured for 14 days
Answer: G, the initial water level was 16 ft
Step-by-step explanation:
I honestly don’t know lol I just looked up the answer on another app
plz help i will report if your not trying to answer
Answer:
first one is A i think Next one is D i think
Step-by-step explanation:
M= i + r ; solve for r
Answer:
m - i = r
Step-by-step explanation:
In this question, you are solving for "r".
Solve:
M= i + r
We have to get "r" by itself, so subtract "i" from both sides.
m - i = r
Since we found what "r" is, we can't solve any further.
m - i = r would be your answer.
Please answer this!! I will give you brainlist and 5 stars!
Answer:
The answer is C
Step-by-step explanation:
3 BC = EF
3 AC = DF
(2x-3)^2 multiply it
Answer:
4 x^ 2 − 12 x + 9
Step-by-step explanation:
multiplied the binomials
Answer: 4x^2+12x+9
Step-by-step explanation:
what is 457.894 to 2 deimal places
Answer:
228.947
Step-by-step explanation:
Answer:
457.894
Step-by-step explanation:
"What is 457.894 rounded to 2 decimal places?" is the same as asking, "What is 457.894 rounded to two decimal points?" or "How to round 457.894 to two decimal places."
The main point is that you want to round 457.894 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 457.894. To eliminate the last digit in 457.894, we use the following Two Decimal Places Rules to get the answer:
Two Decimal Places Rule #1: If the last digit in 457.894 is less than 5, then remove the last digit.
Two Decimal Places Rule #2: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is less than 9, then remove the last digit and add 1 to the second to the last digit.
Two Decimal Places Rule #3: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is 9, and the third to the last digit is less than 9, then remove the last digit, make the second to last digit 0, and add 1 to the number to the third to the last digit.
Two Decimal Places Rule #4: If the last digit in 457.894 is 5 or more and the second to the last digit is 9, and the third to the last digit is 9, then add 1 to the number on the left side of the decimal point and make the right side of the decimal point 00.
When rounding 457.894 to two decimal places we use Two Decimal Places Rule #1. Therefore, the answer to "What is 457.894 rounded to 2 decimal places?" is:
457.89Does anyone know how to solve this?
Answer:
first car : 115 liters
second car: 135 liters
Answer:
car 1 = 173.08 liters
car 2 = 76.92 liters
Step-by-step explanation:
the first step is to find what ratio of car 1 is to car 2
that is 18:8
total ratio is 26
the combination of car 1 and 2 = 26
the total km = 3350
total fuel = 250 liters
car 1 = 18 x 250 liters
26
= 173.08 liters
car 2 = 8 x 250 liters
26
= 76.92 liters
173.08 + 76.92 = 250
Describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x).
f(x) = 9 cos x ; g(x) = cos x (3 points)
Answer:
The transformations required to obtain the graph of the function f(x) from the graph of the function g(x) is vertical stretch
Step-by-step explanation:
We need to describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x).
We have g(x) = cos x
After transformation we get
f(x)= 9 cos x
According to transformation rule:
if f(x) is transformed into a.f(x) then the transformation is vertical stretch or compression.
if a > 1 then transformation is vertical stretchif 0 < a < 1 then transformation is vertical compressionIn our case
g(x)= cos x
f(x) = 9 cos x
a=9 and a>1 so, the transformation is vertical stretch.
So, The transformations required to obtain the graph of the function f(x) from the graph of the function g(x) is vertical stretch
whats the answer giving brainliest:)(:..
Answer:
c)
Step-by-step explanation:
The answer is C
The coach for a basketball team wants to try I buy new shoes for her 12 players.
The same shoes are available on double dribble’s web site for $57.75. A 9% processing fee will be applied to the cost of the shoes, plus a shipping fee of $5.99 for each pair.
What is the difference in the total costs of the 12 pairs of shoes between the two sites?
The difference in the total costs of the 12 pairs of shoes between the two sites is $46.77,
How to find the cost difference and total cost?Total cost is the sum up cost for all the individual process. we can find it by adding the cost for each steps.
In the given ques,
Super Sports is offering a 20% discount.
and shoes were originally priced at $72.50 and that a 6.5% sales tax will be applied.
On Double Dribbles, the same shoes were on for $54.75, and a 9% is added and has an extra $5.99 for shipping.
i.e. we have to find the difference in the total costs..
Now we have to multiply 12 by 72.50. The answer to that is 870. Next, we need to multiply 8 by 870 and divide it by 10. The answer to that is 696. Then, we need to add the price and the tax. The price will be 100%, and the tax will be 6.5%. 100 + 6.5 = 106.5. After that, we need to 106.5 by 100. The answer it that is 1.065. Now do times 1.065 by 696. And the answer to that is $741.24.
Do the same for other store. The answer to it is 788.01.
Thus, making Super Sports a better deal.
As, we need to find the difference. So, 788.01 - 741.24 = $46.77.
To know more about cost and percentage, visit:
brainly.com/question/26080842
#SPJ9
The complete question is :
The coach for a basketball team wants to buy new shoes for her 12 players.
Super Sports is offering a 20% discount on each pair of shoes, which were originally priced $72.50. A 6.5% sales tax will be applied to the discounted price.
The same shoes are also available on Double Dribble's website for $54.75. A 9% processing fee will be applied to the cost of the shoes, plus a shipping fee of $5.99 for each pair.
What is the difference in the total costs of the 12 pairs of shoes between the two stores?
The longer leg of a right triangle has a length of 15. One angle in the triangle is 60 degrees. What is the length of the shortest leg?
The shortest side of a right triangle with a hypotenuse of 15 and one angle of 60° is 7.5
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
Given that the longer leg of a right triangle has a length of 15, hence hypotenuse = 15. One angle in the triangle is 60°. Let x represent the shortest side.
The shortest side is adjacent to the 60° angle, hence:
cos(60) = x / 15
x = 7.5
The shortest side of a right triangle with a hypotenuse of 15 and one angle of 60° is 7.5
Find out more on equation at: https://brainly.com/question/13763238
#SPJ1
Answer:
Step-by-step explanation: Took the practice test
Papa John's sold 50 pizzas on Monday. Of the pizzas sold, 35 of them were delivered. What percent were delivered?
Answer:
75%
Step-by-step explanation:
if i'm wrong i'm really sorry-
uh well i did the math and got 70
Jen uses 8.6 gallons of gasoline to drive 164.7 miles. Which is the best estimate for the number of miles per gallon of gasoline her vehicle gets?
A.
10 miles per gallon
B.
16 miles per gallon
C.
20 miles per gallon
D.
30 miles per gallon
Answer:
C 20 miles per gallon.
Have a blessed day
Answer:
c c c c
Step-by-step explanation:
whats the domain for the pairs below?
Answer:
-6
Step-by-step explanation:
when y is -1 the corresponding x value is -6
13. Find the value of x.
Answer:
6x+12+3x-3=180(supplementary angle)
9x+9=180
9(X+1)=180
X+1=20
X=19
If 45% of a number is 99 and 35% of the same number is 77, find 80% of that number.
Answer:
176 = 80% Extra: If you need 100% its, 220
Step-by-step explanation:
99+ 77 is 176
45% + 35% = 80%
Simplify the following Expression by combining like terms:
y+ 3x + 4y + 2x + 3y + 3x
Answer:
8x+8y
Step-by-step explanation:
y + 3x + 4y + 2x + 3y +3x
With this we group x with x and y with y and in ascending order so x comes before y
3x+2x+3x
And the y with y
y+4y+3y
Which is;
3x+2x+3x+y+4y+3y
8x+8y
5. How much will her total bill be, not including
tax?
Answer: 8.50
Step-by-step explanation: 10%'s 15% is 1.50 10$-1.50 is 8.50
Last week you worked 16 hours, and earned $172.
What is your hourly pay rate?
S
per hour
Give your answer in dollars and cents (like 5.50)
381 1/10 -214 43/100
Answer:
Exact Form:
16667 /100
Decimal Form:
166.67
Mixed Number Form:
166 67/100
Step-by-step explanation:
Answer:
166.67
step by step
search it up
- The formula for the area of a trapezoid is.... solve for b2
Answer:
The formula for the area A of a trapezoid is A = 1/2 h(b1 + b2), where h is the height and b1 and b2 are the lengths of the two bases.
Step-by-step explanation:
select all the intervals where h is decreasing
Answer:
It is A) -4
Step-by-step explanation:
use SSS, SAS, ASA, AAS or HL star if the two triangles are congruent, if they are state how you know?
Answer:HL, ASA, SSS, ASA
Step-by-step explanation:
1. HL because the hypotenuse are equal by the reflexive property and the at least one pair of legs are congruent. Also the interior angles are congruent.
2. ASA because the interior angles are both congruent and the included side is congruent by the reflexive property.
3. SSS because the corresponding sides are congruent and the line is congruent by reflexive property so all the sides are congruent.
4. ASA because the interior angles are congruent and the other pair of angles are also congruent because they are verticle angles. The including sides are also congruent so therefore angle-side-angle.
4y, 3y terms, coefficients, and constants.
Answer:
Coefficients= 4, 3
No constants
Only variables x and y
Step-by-step explanation:
Constants could also be found after solving for the variables
what is 150 percent of 22
Answer:
it would be 33 i think
What is the slope of the equation 2x - 3y = 6?*
2
-3
2/3
-2/3
please help, i do not understand this
Answer:
I believe,
a = -1
b = 3
c = 1/4
Step-by-step explanation:
As most I know that x term is first , y term is second and the term without any variable is 3rd.
(-1x +3y +1/4).
I hope it's correct.
please help its timed
Answer:
A.) f(x) = 45 - 4(x - 1)
Step-by-step explanation:
Use the distributivity of multiplication of rational numbers over addition to simplify. 2/7 * (7/16 +21/4)
Answer:
13/8
Step-by-step explanation:
2/7 × (7/16 + 21/4)
2/7 × 7 + 84/16
2/7× 91/16
13/8