Determine if the following system of equations has no solutions, infinitely many
solutions or exactly one solution.
-5x + y = -2
20x – 4y = 8
At the market, 8 batteries cost $10. How much do 6 batteries cost?
Answer:
$7.50
Step-by-step explanation:
First you divide 10 by 8 to get the amount of $ per batterie.
10/8=$1.25
Then multiply $1.25 by 6.
1.25*6=7.50
$7.50 for 6 batteries.
K to the power of negative 2 multiplied by 2
Answer:
2k-²
Step-by-step explanation:
i hope this is the answer ur looking for !
Please help!!!!!!!!!!!!!!!!!!!!!!
Answer:
45∘
Step-by-step explanation:
So, the reference angle is 360∘−315∘=45∘
Hope this helps! :D
How do you write 54.039
Answer:
word form: fifty-four and thirty-nine thousandths.
Step-by-step explanation:
hope it helps
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Isabel pays a total of $50.00 for every 18 shirts she has dry-cleaned. Which 1 point
graph models a relationship with the same unit rate where x shirts are dry
cleaned for a total of y dollars. *
Jim drove 175 miles in 3 hours 30 minutes.
How many miles per hour did Jim drive?
Answer:
50 miles per hour
Step-by-step explanation:
50 x 3 = 150
50 x 0.50 = 25
150 + 25 = 175
Hope this helps!
The number of miles that Jim can drive in each hour will be 50 miles.
What is speed?Speed is defined as the length traveled by a particle or entity in an hour. It is a scale parameter. It is the ratio of length to duration.
We know that the speed formula
Speed = Distance/Time
Jim drove 175 miles in 3 hours and 30 minutes. Convert the time into hours, then we have
Time = 3 + 30 / 60
Time = 3.5 hours
The number of miles that Jim can drive is calculated as,
⇒ 175 / 3.5
⇒ 50 miles per hour
More about the speed link is given below.
https://brainly.com/question/7359669
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pls do the assignment for me I will give brainiest just upload and do the work for me
Answer:
lazyyyy
Step-by-step explanation:
Enter the correct answer in the box
Simplify the expression (62)4
Answer:
62•4=248
[tex]63^{4} =2^{24}[/tex]
Step-by-step explanation:
I didn't know which one you needed so here's both.
The perimeter of the rectangle below is 56 units. Find the length of side BC.
Write your answer without variables.
DC = 3x - 2 DA = 2x
BC = ?
Answer:
12 unitsStep-by-step explanation:
Perimeter formula:
P = 2(l + w)Given:
l = 3x - 2w = 2xP = 56Find the value of x:
2(3x - 2 + 2x) = 565x - 2 = 285x = 30x = 6BC is parallel side to AD and is:
BC = AD = 2*6 = 12BC must parallel to DA hence equal
Now
2(Length+Breadth)=Perimeter2(3x-2+2x)=56(5x-2)=285x=30x=6BC=2(6)=12units
Given f(x)=3x-4 and g(x)=-2x+7 evaluate
Step-by-step explanation:
e...
First;
g(5)=-2×5+7=-3
then
f(g(5))=3×-3-4=-9-4=-13
f...
g(2)=-2×2+7=3
now
g(g(2))=-2×3+7=1
Travis buys a new deep freezer. The manual tells him the temperature will drop 12℃ every hour after he plugs it in. It is currently 70℃ in his house. He checks several hours later and the freezer reads -2℃. How many hours have passed? Write an equation and solve.
Answer:
6 hours will have past if it's then -2°C
f(x)=(Power[x,2]+x)Power[e,-x]
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What is 0.579 x 10 to the power of 4
Answer:
5790
Step-by-step explanation:
Hope this helps! Pls give brainliest!
Answer:
5790
Step-by-step explanation:
0.579 × [tex]10^{4}[/tex]
Calculate 10 to the power of 4 and get 10000.
0.579 × 10000
Multiply 0.579 and 10000 to get 5790
5790
Graph this function using intercepts
X + 5y = -5
we set y for 0 and get x = -5
this is your x-intercept
we set x for 0 and get 5y = -5
y = -1
(-5,0)
(0,-1)
hope this helped :)
What can you divide a2b5 by to get a quotient of 1?
9514 1404 393
Answer:
a^2b^5
Step-by-step explanation:
Anything divided by itself is 1.
That is, anything multiplied by its reciprocal is 1. This value (the reciprocal of the expression) is called the "multiplicative inverse." Its value is that the product of an expression and its multiplicative inverse is 1, the multiplicative identity element. (Anything times 1 is itself.)
So, to get 1 as a product, multiply by 1/(a^2b^5), which is to say, divide by a^2b^5 to get 1 as a quotient.
Ali bought 2kg of potato and 3kg of onion. The price of the onion is 50 cents less
than potato. He paid $10 to the cashier and get back $1.50. What is the price for 1kg
of onion ?
Answer:
1kg of onion is $1.5
Step-by-step explanation:
He paid $10 and got $1.50 back, meaning that the total price for the 2kg and 3kg of the potato and onion is:
10 - 1.5 = $8.50
Now, equating the prices of the two (take x as the cost of the potato per kg and take y as the cost of the onion per kg):
x -0.5 = y
x - y = 0.5 ---- Eq 1
Equating the total costs:
2x + 3y = 8.5 ---- Eq 2
Multiplying Eq 1 by 2:
2x - 2y = 1 ---- Eq 1'
Subtracting Eq 2 from Eq 1':
2x - 2x +3y - (-2y) = 8.5 - 1
5y = 7.5
y = 1.5
Substituting this into the first equation:
x - 1.5 = 0.5
x = 2
Hence,
the cost of the Potato is $2, and
the cost of the Onion per kg is $1.5
Hope this helps, and have a wonderful time ahead on Brainly!
Given f(x)=2x+5, find f(1)
Answer:
2
Step-by-step explanation:
An ice cream factory makes 170 quarts of ice cream in 5 hours. How many
quarts could be made in 36 hours? What was that rate per day?
The amount of quarts which will be made in 36 hours and the production rate per day is :
1224 quarts on 36 hours 816 quarts in a dayGiven the Parameters :
Time taken to make 170 quarts = 36 hours
Number of quarts made in 36 hours using the proportional relationship :
170 = 5
p = 36
Cross multiply :
5p = 170 × 36
5p = 6120
p = 6120 / 5
p = 1224 quarts
The production rate per day :
Number of hours in a day = 24 hours
170 = 5
p = 24
Cross multiply
5p = 170 × 24
5p = 4080
p = 4080/5
p = 816
Therefore, the production rate per day is 816 quarts
Learn more : https://brainly.com/question/18112348
Can you please help :)
Answer:
6 in.
Step-by-step explanation:
Which data set has the same standard deviation as the data set {2, 2, 5, 6, 8} ?
{3, 4, 4, 7, 7}
{5, 6, 5, 6, 5}
{3, 3, 6, 7, 9}
{4, 4, 5, 5, 5}
Answer:
{3, 3, 6, 7, 9}
write and equation of a parabola with the vertex of (0,3) and the focus of (-8,3)
Answer:
(y-3)²= -32x
Step-by-step explanation:
1) the required equation has a form: (y-y₀)²=-2p(x-x₀), where (x₀;y₀) - vertex (0;3), p - parameter of the given parabola;
x₀=0; y₀=3.
2) according to the conditiion F(-8;3)=F(x₀+p/2; y₀), it means (x₀+p/2; y₀)=(p/2;3), then p/2= -8; ⇒ p= -16.
3) finally, p= -16; x₀=0; y₀=3, then it is possible to make up the required equation:
(y-3)²= -32x.
PS/ if it is possible check the suggested solution in other sources.
5,339x6= What is the estimate
- BRAINLIEST answerer ❤️
Two trains leave towns 840 miles apart at the same time and travel toward each other. One train travels 20 mi/h slower than the other. If they meet in 5 hours what is the rate of each train?
*Cho hình chóp
S ABCD .
có đáy
ABCD
là hình chữ nhật biết
AB a 2
. Tam giác
SAD
cân tại
S
và nằm trong mặt phẳng vuông góc với đáy. Biết
SC a 6
. Đặt
AD x x 0
. Giá trị của
x
theo
a
sao cho thể tích khối chóp
S ABCD .
lớn nhất là
Answer:
que
Step-by-step explanation:
no ablo ese idioma v
the temperature changed from 5 degrees Celsius 6pm to -2 degrees Celsius at midnight. How much did the temperature decrease?
Round 6,823 to the nearest thousand
Answer:
7,000
Step-by-step explanation:
Five times the sum of a number and 3 is the same as 3 times the number decreased by 7
Answer:
18
Step-by-step explanation:
5(n+3) =3(2n-1)
5n+15 =6n-3
18=n
simplify the expression 7(a+4b)-3c
Answer:
7a+28b-3c
Step-by-step explanation:
you distribute the 7 to the numbers and variables in the parentheses
Solve for w
Please help :)
THANK U
Answer:
w=12
Step-by-step explanation:
[tex]5=\frac{w}{-4} +8\\\\-3=\frac{w}{-4}\\12=w[/tex]
Answer:
12
If you ever have a problem like that, just search for it on the internet. It will give you the answer so you don't have to waist your points on here.
(I hope that didn't sound mean :)