Answer:
The burgers cost $2.50 and the cookies cost $1.25.
Step-by-step explanation:
Let b represent burgers and c represent cookies.
2b + 2c = 7.50
4b + 3c = 13.75
Step 1: Use one of the two equations and isolate one of the variables.
2b + 2c = 7.50
- 2c -2c
[tex]\frac{2}{2}[/tex]b = [tex]\frac{7.50}{2}[/tex] - [tex]\frac{2}{2}[/tex]c
b = 3.75 - c
Step 2: Plug what you get for b into the second equation.
4(3.75 - c) + 3c = 13.75
15 - 4c + 3c = 13.75
15 - 1c = 13.75
Step 3: Isolate the variable and solve for c.
15 - 1c = 13.75
-15 -15
[tex]-\frac{1}{1}[/tex]c = [tex]\frac{-1.25}{-1}[/tex]
c = 1.25 ← price for cookies
Step 4: Plug in what you have for c into one of the previous equations and solve for b.
2b + 2(1.25) = 7.50
2b + 2.50 = 7.50
- 2.50 -2.50
[tex]\frac{2}{2}[/tex]b = [tex]\frac{5}{2}[/tex]
b = 2.50 ← price for burgers
Now you know the cost of each item:
The burgers cost $2.50 and the cookies cost $1.25.
BEST ANSWER GETS BRAINLIEST!!!!!!!!1
Two pools are being filled with water. To start, the first pool contains 1900 liters of water and the second pool contains 1351 liters of water. Water is being added to the first pool at a rate of 20.5 liters per minute. Water is being added to the second pool at a rate of 35.75 liters per minute.
After how many minutes will the two pools have the same amount of water?
How much water will be in each pool when they have the same amount?
After how many minutes will the two pools have the same amount of water? 36 min.
How much water will be in each pool when they have the same amount? 2638 liters.
Explanation:
y=1900+20.5x
y=1351+35.75x
Let the time be t
[tex]\\ \sf\longmapsto 1900(1+\dfrac{20.5}{100})^t=1351(1+\dfrac{35.75}{100})^t[/tex]
[tex]\\ \sf\longmapsto 1900(\dfrac{120.5}{100})^t=1351(\dfrac{135.75}{100})^t[/tex]
[tex]\\ \sf\longmapsto 1900(1.2)^t=1351(1.35)^t[/tex]
[tex]\\ \sf\longmapsto \dfrac{1900}{1351}=\left(\dfrac{1.35}{1.2}\right)^t[/tex]
[tex]\\ \sf\longmapsto 1.4=(1.125)^t[/tex]
[tex]\\ \sf\longmapsto (1.125)^2.9=(1.125)^t[/tex]
[tex]\\ \sf\longmapsto t=2.9h[/tex]
: The cost of 30 sandwiche rolls at $1.50 per dozen is a. $3.00 b. $3.45 c. $3.75 d. $4.50 e. $4.80
Step-by-step explanation:
their are total 12 sandwiche rolls in a dozen so,
price of 12 sandwiche rolls are $1.50
so, cost of 1 sandwich roll = 1.50/12 = $0.125
now,
cost of 30 sandwich rolls = 30 × 0.125 = $3.75
therefore, option C is correct.
HOPE THIS ANSWER HELPS YOU DEAR! TAKE CARE
PLS HELP ASAP
x^2 - 4x-1=0
Solve using formula
Answer:
Your answer would be x=2±√5
Step-by-step explanation:
What is the perimeter of the shape below?
3 cm
4 cm
8 cm
4 cm
Answer:
:D
Step-by-step explanation:
it is 19 cm
Can someone help me please
Answer:
15 - 17 = 0.013333 (1.3333%)
latte drop = 8.3%
gasoline = 9%
Lin's family has completed 30% of a trip, they have travelled 45 miles. How far is the trip?
Answer:
2 hours
Step-by-step explanation:
Answer:
150 miles
Step-by-step explanation:
45/3=15
15*7=105 15*3=45
105+45=150
15*10=150
:)
tammy has soccer practice every 12 days, basketball 18 days, band practice 20 days, and music class every 24 days. If she has all these practices on the same day today, then how many days will it be until she has all four practices.
Answer:
360 days
Step-by-step explanation:
It would be a whole year until the classes line up on the same day again, because it would only be the exact same date of the next year that they line up.
Hope this helps!
PAGE 77/215 #1A-C
What percentage of a dollar is the value of each coin combination?
a. 4 dimes
b. 1 nickel and 3 pennies
c. 5 quarters and 1 dime
?
Answer:4 dimes = 40 cents
1 nickel 3 pennies =8 cents
5 quarters and 1 dime = $1 and 35 cents
step explanation:
At the movies, tickets cost $16.50 for adults and $5.50 for kids under 12. How many total tickets would someone get if they purchased 11 adult tickets and 16 kids tickets? How many total tickets would someone get if they purchased aa adult tickets and kk kids tickets?
Answer: 27 tickets a+k
Step-by-step explanation:
11+16
can someone help with this problem
Check the picture below.
The length of a rectangular garden is 7 feet longer than its width. The garden's perimeter is 178 feet. Find the length of the garden.
Answer: 48
Step-by-step explanation:
l = w + 7
2w + 2l = 178
2w + 2(w + 7) = 178
2w + 2w + 14 = 178
4w = 164
w = 41
l = w + 7
l = 41 + 7
l = 48
Find the slope of the line passing through the points (7.6) and (7.-2).
F(x)=x^2. What is g(x)?
A. G(x)=-x^2
B. G(x)=-2x^2
C. G(x)=-x^2-2
D. G(x)=x^2-2
[tex] - x ^{2} - 2 = gx[/tex]
3. Sarah has a goal to save $81.84 for a new gan
If she has 12 weeks to save the money, how much does she need
to save each week?
Answer:
93.84
Step-by-step explanation:
I think I'm not sure
pleasee help meeeeeee
Step-by-step explanation:
we mulyiply 3*1 =x-7
3=x-7
-x= -7-3
-x= -11 so when we divide -11 by -x it becomes 11
L shcool W clash royale
Answer:
THEY ARE CONGRUENT BY ASA TEST OF CONGRUENCESolve the inequality -3p + 7 < -2p+8
p > − 1
............................................................................................
In year one the population of rabbits is 100. In year three the population is 300. Assuming the population is to go unchecked and is linear what will be the population in year 10? Construct a formula for this.
Answer:
the rabbits ran away
Step-by-step explanation:
now its 300 rabbits
Which expression is NOT equal to 729?
3 × 3 × 3 × 3 × 3 × 3
63
9 × 9 × 9
36
Answer:
6^3
Step-by-step explanation:
3 × 3 × 3 × 3 × 3 × 3=729
6^3=216
3 × 3 × 3 × 3 × 3 × 3=729
3^6=729
Hope this helps :)
3 × 3 × 3 × 3 × 3 × 3
63
9 × 9 × 9
36
pls help i’ll mark brainliest!!
Interpret the slope of the function in the terms of the problem.
25 ml of water are lost every hour
5 ml of water are lost every hour
10 ml wat are lost every hour
2mL of water are lost
How do you find out if angle A is a right angle?
Answer:
Calculate the distance of AB, AC and BC. Then use the pythagorean theorem to see if AB^2 + AC^2 = BC^2
If it does, angle A is a right angle.
Encuentra las coordenadas del punto P(x,y) que divide al segmento P1P2 con coordenadas
de sus extremos P1(x1,y1) y P2(x2,y2) dada la razón r.
P1(-1,6) P2(3,-3) r = ¾
Usando segmentos de línea, se encuentra que el punto es [tex]P\left(2, -\frac{3}{4}\right)[/tex]
El punto P1 es dado por (-1,6).El punto P2 es dado por (3, -3).El punto P divide el segmento en la razón [tex]r = \frac{3}{4}[/tex], o sea:
[tex]P - P_1 = \frac{3}{4}(P_2 - P_1)[/tex]
La coordenada x de P1 es -1.La coordenada x de P2 es 3.La coordenada x de P es x.[tex]P - P_1 = \frac{3}{4}(P_2 - P_1)[/tex]
[tex]x + 1 = 3[/tex]
[tex]x = 2[/tex]
La coordenada y de P1 es 6.La coordenada y de P2 es -3.La coordenada y de P es y.[tex]P - P_1 = \frac{3}{4}(P_2 - P_1)[/tex]
[tex]y - 6 = -\frac{27}{4}[/tex]
[tex]y = -\frac{27}{4} + \frac{24}{4}[/tex]
[tex]y = -\frac{3}{4}[/tex]
El punto es [tex]P\left(2, -\frac{3}{4}\right)[/tex]
Un problema similar es dado por https://brainly.com/question/4854238
I need help on the "the slopes are" part on these 2 plz help
Answer:
Negative reciprocals
The quotient of a number p and 3 is 24
Answer:
p= 8
Step-by-step explanation:
because 8 x 3 is 24
hope this helps!❄︎
Estimate the total of 56.213, 7.983, and 0.344 by rounding each value to the nearest hundredth
Answer:
64.53
Step-by-step explanation:
56.213 rounds to 56.21
7.983 rounds to 7.98
0.344 rounds to 0.34
Next you do 56.21 + 7.98 + 0.34 = 64.53
All the numbers after rounding each value to the nearest hundredth are 56.21, 7.98, and 0.34.
When you round a number to a certain digit, you have to check the value of the digit before the place you want to round off to.
1. If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up.
2. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.
Here, the question said the nearest hundredth, so I had to look at the value in the thousandth place.
Here the numbers are,
56.213
Since the value in the thousandth place is 3 which is less than 5.
Hence round the number down.
56.21
7.983
Since the value in the thousandth place is 3 which is less than 5.
Hence round the number down.
7.98
0.344
Since the value in the thousandth place is 4 which is less than 5.
Hence round the number down.
0.34
To learn more about rounding numbers visit:
brainly.com/question/27207159
#SPJ3
Simplify the expression: (5.2 + 6.8)x - (25 ÷ 5)x
Answer:
7x
Step-by-step explanation:
(5.2 + 6.8)x - (25 ÷ 5)x
12x-(25divied by 5)x
12x-5x
7x
How many pounds are in 1 1/2 pounds and 8 ounces?
Answer:
2 pounds
Step-by-step explanation:
Because 8 ounces = 0.5 pounds
1.5+0.5=2
What are the steps for solving and graphing 2x - 3y = 9?
please help!
Answer:
Step-by-step explanation:
There is a 0.9968 probability that a randomly selected 50 year old female lives through the year (based on data from the US department of Health and Human Services). A Fidelity life insurance company charges $226 for insuring that the female will live through the year. If she does not survive the year, the policy pays out $50,000 as a death benefit.
There is a 0.9968 probability that a randomly selected 50-year-old female lives through the year (based on data from the U.S. Department of Health and Human Services).
-------------------
A Fidelity life insurance company charges $226 for insuring that the female will live through the year. If she does not survive the year, the policy pays out $50,000 as a death benefit.
From the perspective of the 50-year-old female, what are the values corresponding to the two events of surviving the year and not surviving?
----
Ans: -226 ; 50,000-226 = 49774
-------------------------
If a 50-year-old female purchases the policy, what is her expected value?
WORK TRIED:
In the event she lives, the value is -$226. In the event she dies, the value is $49,774.
----
E(x) = 0.9968*(-226) + 0.0032(49774) = -$66
==================================================
Cheers,
ROR
How does insurance reduce social burden?
A. Insurance ensures that people don't have to pay high deductibles.
B. Insurance ensures that losses are not passed on to society.
C. Insurance ensures that lenders publicize rates and treat all
customers equally.
D. Insurance ensures that people are treated fairly in hiring and
employment decisions.
Answer:
c po is the correct aswer
Step-by-step explanation:
correct me if im wrong hope it's help
thanks
Answer:
B. Insurance ensures that losses are not passed on to society
Hope this helps :)