Answer:
no solutions
Step-by-step explanation:
Given the 2 equations
y = - 7x + 8 → (1)
y = - 7x - 8 → (2)
Substitute y = - 7x - 8 into (1)
- 7x - 8 = - 7x + 8 ( add 8 to both sides )
- 7x = - 7x + 16 (add 7x to both sides )
0 = 16 ← not possible
This indicates the system has no solutions
Hey there!
The answer to your question is [tex]no[/tex] [tex]solutions[/tex]
To solve this, we will set the equations equal to eachother. We know that since the two expressions, [tex]-7x+8[/tex] and [tex]-7x-8[/tex] both equal [tex]y[/tex], then the expressions are equal. (Somebody comment what property that is, I forgot what it's called) So:
[tex]-7x+8=-7x-8\\[/tex]
Add [tex]8[/tex] to both sides:
[tex]-7x+16=-7x[/tex]
Add [tex]7x[/tex] to both sides:
[tex]16 = 0[/tex]
Therefore, there are [tex]no[/tex] [tex]solutions[/tex].
Have a terrificly amazing day!
Find x for brainliest
Last week, Jamie counted the number of rice grains in his plate, and found he had 250
grains.
He had rice this week, and counted only 175 grains.
Find the percentage decrease.
Please please answer will give brainliest
Answer:
D. (Jesse with a score of 75)
Step-by-step explanation:
Abby has 15/20 on her quiz, and we can convert that to 0.75. We can turn 0.75 into 75 points in her quiz.
Jesse has 18/30 on her quiz, and we can convert that to 0.60. We can turn 0.60 into 60 points in her quiz.
0.75 > 0.60, so Jesse has more.
Answer:
Jesse has the better score
hi please help i’ll give brainliest if you give a correct answer and show your work!
Answer:
A: 4.4 B: 0.875
Step-by-step explanation:
22/5=4.4. We know this because 22/5 simplified is 4 2/5, which converted to a decimal is 4.4.
7/8=0.875. We know this because 7/8 converted to a decimal is 0.875.
Jesse has 158 quarters and nickels. The value of the collection is $19.10. How many of each coin does she have?
Answer:
102 nickels and 56 quarters
Step-by-step explanation:
Since the total amount of coins is 158, then...
q+n=158
Since the total amount of money is $19.10, and a quarter is 25 cents and a nickel is 5 cents, then...
0.25q+0.05n=19.10
Now that we have 2 equations and 2 variables, we can solve for this equation by solving the first equation for q and plugging it into the second equation.
q+n=158,
q=158-n
Plug into the other equation,
0.25(158-n)+0.05n=19.10
and solve for n
39.5-0.25n+0.05n=19.10
39.5-0.2n=19.10
-0.2n=-20.4
n=102
there are 102 nickels.
Now solve for quarters.
q+n=158
q+102=158
q=158-102
q=56
2/3 x 9/14 as a fraction in simplest form.
Answer:
3\7
Step-by-step explanation:
2\3×9\14=3\7
Work out the question (-5)2
Answer:
-10 or 25 (read my explanation)
Step-by-step explanation:
(-5)2
-5*2=-10
(Unless the 2 is supposed to be an exponent)
If it is supposed to be an exponent the answer is 25
(-5)^2
25
[tex]\huge\boxed{Hi\;there!}[/tex]
(-5)2 means negative five times 2.
The answer is -10.
Remember, if we multiply a negative times a positive, we get a negative number.
[tex]\huge\boxed{\rm{Hope\:it\:helps!}}[/tex]
[tex]\huge\bf{Good\:luck!}[/tex]
[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]
help me ..... im stuck here
Find the percent error in this situation:
Estimated value: 231
Actual value: 215
0.074%
7.4%
0.069%
6.9%
Answer:
7.4 % is percent error
Step-by-step explanation:
https://brainly.com/question/21689164
The percent of error is 7.4%. The correct option is B.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
Estimated value: 231
Actual value: 215
To find the percentage:
First, the value,
= 231 - 215
= 16
Now,
let n be the percentage.
So,
16 = n x 215/100
n = 1600/215
n = 7.4%
Therefore, 7.4% is the error.
To learn more about the percentage;
https://brainly.com/question/24159063
#SPJ6
Find the first four terms of the sequence given by the following.
an=43-6(n-1), n=1, 2, 3.
Step-by-step explanation:
Your answer is
43,37,31,25
Hope that this is helpful. Tap the crown button, Like & Follow me
6th grade math help me pleasee
Answer:
The height above ground level of a rider on a roller coaster over the duration of the ride
Step-by-step explanation:
Answer:
The one that says roller coaster in it.
Step-by-step explanation:
The rest are constant rates so they shouldn't be going up and down on a graph. Since the roller coaster height goes up and down and not straight, it would look like what is shown on the graph.
please help me with this i need it
Step-by-step explanation:
25.74- 8.58=x/4.29
3
Convert the following number into standard form. D
(1 Point
0 3x10
0.3 x 10-
O 3 x 10
l
En una zona industrial se encuentran dos contenedores: en uno hay 198 litros de jugo de arándanos y en el otro hay 144 litros . Para su transporte se requiere guardar el jugo en el menor número de envases iguales. ¿Cuál debe ser la capacidad máxima de estos envases para que no sobre jugo?
Answer:
2 envases iguales de 171 litros
Step-by-step explanation:
Para calcular esto, primero necesitamos sumar los dos contenedores y cuantos litros de jugo tienen cada uno.
198 + 144 = 342 litros.
Ahora tenemos que calcular el numero minimo de envases. Si ya sabemos que es un numero par entonces lo podemos dividir en dos envases iguales sin que sobre...
342 / 2 = 171 litros
Finalmente, podemos ver que podemos dividir el jugo en 2 envases iguales de 171 litros
express (2x-4)(x+6) as a trinomial
Help I need this what’s angle 1 and 5
yes or no ? i need help
Answer:
Yes it is linear
Step-by-step explanation:
Please help! I’ll give brainliest but I need help immediately this is due in a couple hours!!
Answer:
1. 3[tex]\frac{3}{8}[/tex] ft.
2. 72.8 cm
3. 28.35 Inches
4. I think its the 11, and the area is 49.14 inches
Area of rectangle = base × height
Area of parallelogram = base × height
1.
[tex]\displaystyle 2.25 \times 1.5=3.375 \ or \ 3\frac{3}{8} \ ft^2[/tex]
2.
[tex]7 \times 5.2 = 36.4 \ cm^2[/tex]
3.
[tex]8.1 \times 3.5=28.35 \ in^2[/tex]
4.
[tex]11 \times 4.2=46.2 \ in^2[/tex]
The measurement that is unnecessary is 11.7 inches because only base and height is required to find the area.
will someone plz help
by the way funny photo
110.859
Hi its me again
Answer:
1026
Step-by-step explanation:
as everyone knows that up to 4 the number increases so here it is 4 so it decreases we can't increase it .
hope it helps.
Rodney can wash 24 windows in an hour how many windows can he wash in 1/8 of an hour
Answer:
3
Step-by-step explanation:
24x (1/8) = 3
hope this helps
A family wants to rent a car to go on vacation. Company A charges $45.50 and 11c per mile. Company B charges $60.50 and 13c per mile. How much does Company B charge for x miles than company A?
Answer: Company B charges $(15.5+0.12x) more for x miles than company A.
Step-by-step explanation:
Let x = Number of miles.
Total charge = Flat charge + (charge per mile) x (Number of miles)
Given:
For Company A ,
Flat charge= $45
Charge per mile = 11 cents = 0.11 [ 1 dollar = 100 cents i.e. 1 cent = 0.01 dollar]
Total charge = 45+0.01x
For Company B,
Flat charge= $60.50
Charge per mile = 13 cents = 0.13
Total charge = 60.50+0.13x
Difference in charge = Charge for company B - Charge for company A
= 60.50+0.13x-(45+0.01x)
= 15.5+0.12x
Hence, Company B charges $(15.5+0.12x) more for x miles than company A.
A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere
Answer:
1017.8
Step-by-step explanation:
this is the formula 4πr2
hope this helps: )
Answer:
Step-by-step explanation:
Volume of cone = π9²⋅12/3 = 324π cm³
volume of sphere = 4πr³/3 = 324π
r = ∛243
surface area of sphere = 4πr² ≈ 155.8π
Please help. It would hep a lot
Answer:
a) The rate of how much rain falls each hour.
b) The y-int in this is (0,0) but which means how much inches of rain there wee before it started raining. (doesn't make sense but that's how it works lol)
c) 4.8 inches.
3/5 x 8 = 4.8 inch
Step-by-step explanation:
A study showed that the ratio of the number of people who get their news from print sources to the number of people who get their news from social media sources is 3:7. Based on the ratio, how many people in a town of 900 people get their news from social media sources?
Two classmates solved this problem and their work is shown below. Which classmate solved the problem correctly? Explain the error in the classmate who solved it incorrectly.
Answer:
270 = number who get news from print sources
630 = number who get news from social media
Step-by-step explanation:
Let 3x = number who get news from print sources
and 7x = number who get news from social media
Then 3x + 7x = 900
10x = 900
x = 90
3x = 3(90) = 270 = number who get news from print sources
7x = 7(90) = 630 = number who get news from social media
Check: 270/630 = 3/7 and 270 + 630 = 900
The table below shows X and Y values for the equation Y = X + 13
What is Y when X = 17?
Answer:
[tex]Y=30[/tex]
Step-by-step explanation:
[tex]Y=X+13[/tex]
If X = 17, you have to add that with 13 to get Y.
[tex]17(X)+13=30\\Y=30[/tex]
That is your final answer.
help me plzzzz, trigonometry!! I'll give brainliest!!!
... i dont know what I'm doing, dont mind my x and y handwritten stuff
Answer:
Step-by-step explanation:
tan47=x/18
x=18tan47
cosCDB=7/x
cosCDB=7/(18tan47)
CDB=arccos(7/(18tan47))
CDB=68.74
3. Daniel's Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5.2%. Find
its approximate value after 8 years.
.062
Exponential Function
Solve
What is the domain of this graph?
Answer:
(-3,-2,-1,1,2,3,4]
Step-by-step explanation:
All x values. Put the bracket and ( as well.
104=4(4a + 2 ) solve for x
When Martin graduates college, he is gifted $1,200 and puts the money into a savings account that earns 2.2% annual interest. How much money will Martin have in 2 years? How much money will Martin have in 5 years?
Answer:
2 years = 1252.80 5 years =1332
Step-by-step explanation:
1,200 x 2.2% = 26.4
26.40 x 2 = 52.80
1200 + 52.80 = 1252.80
26.40 x 5 =132
1200 + 132 =1332