Answer:
50.65 grams
Step-by-step explanation:
Answer:
Step-by-step explanation:
Total amount of salt = 38.1 + 12.55 = 50.65 grams
38.10 +
12.55
50.65
i have i need to use the substitution method to work out what x and y is
5y−2x=10
8x+5y=60
Answer:
pick the simplest of the 2 equations
Step-by-step explanation:
5y-2x=10
5y = 2x +10
y = 2/5x + 2
now substitute
8x + 5(2/5X +2)=60
8x + 2x + 10 = 60
10x = 50
x = 5
y = 4
What is the probability of rolling an even number on the first roll of a number cube and rolling an odd number on the second roll?
Answer:
1/4.
Step-by-step explanation:
There are 3 even numbers in the 6 numbers on a cube.
So Probability first roll is even = 3/6 = 1/2.
By the same reason Probability of odd number = 1/2.
So: Probability(First is even and second is odd) = 1/2 * 1/2 = 1/4.
PLEAS HELP ASAP SOLVE BOTH PROBLEMS IM GIVING 80 POINTS! NO SPAM
answer format: just say a, b, c, or d for both questions; no explanation needed.
question 1:Which of the following is a pair of equivalent radical expressions?
A. √45 and 3√15
B. √75 and 3√5
C. √54 and 9√6
D. √180 and 3√20
Question 2: image attached.
Answer:
C
Step-by-step explanation:
Answer: C for the first one and B for the second one
Step-by-step explanation:
hope it helps you
A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of the following statements is true about the sample? (5 points) It is not a valid sample because it is only a short study. It is a valid sample because money is offered to participants. It is a valid sample because the first 10 people were selected to participate. It is not a valid sample because it is not a random sample of the population.
Answer:
the third one
Step-by-step explanation:
do you need and explanation
A line that includes the point (1, 10) has a slope of 6. What is its equation in slope-intercept
form?
Answer:
y = 6x + 4Step-by-step explanation:
The point-slope form of the equation that describes the line with a slope of m and including the point (x₀, y₀) is: y - y₀ = m(x - x₀)
m = 6
(1, 10) ⇒ x₀ = 1, y₀ = 10
Therefore:
y - 10 = 6(x - 1) ← the point-slope form
y - 10 = 6x - 6 {add 10 to both sides}
y = 6x + 4 ← the slope-intercept form
The ratio of boys to girls at the valley high school is 3:2. The school has 900 students. How many boys are at the school?
Answer:
let the no. of boys be 3x and girls be 2x
And according to the question
2x+3x is equal to 900
Step-by-step explanation:
and solve this equation...
hope this helps..
HELP ON A TIMER
WHAT IS THE x-intercept of the graph?
What is the solution to the equation 9(x − 2) = 27? (1 point) x = 2.5 x = 0.5 x = −0.5 x = 3.5
Answer:
x = 5
Step-by-step explanation:
9(x - 2) = 27
9x - 18 = 27
+18 +18
9x = 45
/9 /9
x = 5
Part B: What can be said of an individual with a body temperature of
98.4°F? Justify your answer.
I need help ASAP
someone pls pls pls answer these questions by finding the area!!!!!!!
Answer:
8 is the diamonds area im not sure if there is a formula for that but its 8
Second shape you could connect the dots to make it more easier to get 15
Third shape is 16 for the area.
Select the correct answer. One factor of the polynomial 2x^3–3 x^2 - 3x + 2 is (x- 2), which expression represents the other factor, or factors, of the polynomial?
Answer:
D
Step-by-step explanation:
The factorisation of polynomial is (2x-1)(x+1). Therefore, option C is the correct answer.
The given expressions are 2x³-3x²-3x+2 and x-2.
What are factors of polynomial?The factors are the polynomials which are multiplied to produce the original polynomial.
Here, the given polynomial can be factored as follows:
x-2 |2x³-3x²-3x+2| 2x²+x-1
2x³-4x²
(-) (+)
___________
x²-3x+2
x²-2x
(-) (+)
___________
-x+2
-x+2
(-) (+)
____________
0
2x²+x-1 can be rewritten as 2x²+2x-x-1
= 2x(x+1)-(x+1)
= (x+1)(2x-1)
The factorisation of polynomial is (2x-1)(x+1). Therefore, option C is the correct answer.
To learn more about the factorisation of polynomial visit:
https://brainly.com/question/16789195.
#SPJ5
Find the difference.-3.2 - (-4) *
1 point
7.2
-7.2
0.8
-0.8
Answer:
do you like harry styles
Step-by-step explanation:
pog champ
HELP ME PLEASE!! I DON’T KNOW WHAT I’M DOING
41u+6
Sorry I don't really know anything about this subject.
How much would it cost to buy a cover for the pool that costs $0.30 per square foot?
Please help me I’m timed X + 1/4=3/4
Answer:
1/2 or 0.5!!!!!!!!!!!!!
Answer:
x=1/2
Step-by-step explanation:
take 1/4 from each side to get x on it's own.
please help! Simplify the polonomial!
Answer:
Step-by-step explanation:
(2[tex]x^{2}[/tex]+3)(x+4)
2[tex]x^{3}[/tex]+8[tex]x^{2}[/tex]+3x+12
How would I simplify x+2y<4 so I can graph it
Answer:
y < -1/2x + 2
Step-by-step explanation:
x+2y<4
subtract x from both sides
2y<-x+4
then divide both by 2
y< -1/2+2
pay ITS TIVE
3. Bonolo ran a 10 km race. Her average speed was 6 km per
hour. How long did it take her in minutes to complete the race?
working days. .
Answer:
km per min
Step-by-step explanation:
6km ÷ 60 = 0.1
Bonolo ran 0.1 km per min
it takes 100 mins= 0.1×10
100 mins means 1 hour 40 min
two times the sum of a number and 18 is at least -21
Answer:
2x + 18 ≥ 21
x ≥ 2/3
Step-by-step explanation:
Let sum be X
2 times the sum means 2x
the sum of a number and 18 means x + 18
at least -21 means ≥ 21
put them together, and you get, 2x + 18 ≥ 21
If solving for x,
2x + 18 ≥ 21
2x ≥ 3
x ≥ 2/3
The price of a gallon of unleaded gas was 2.84 yesterday. Today, the price rose to 2.90 . Find the percentage increase. Round your answer to the nearest tenth of a percent.
Could someone please answer this question for me? (7x+1)+(−8x+2) This answer needs to be simplified. Thanks!
Answer:
-x + 3
Step-by-step explanation:
(7x+1)+(−8x+2)
7x + -8x + 1 + 2
-x + 3
A red-light flashes every 28 seconds. A green light flashes every 24
seconds. They both flash at the same time. After how many seconds will
they both next flash at the same time
Answer:
168 seconds
I edited the answer.
Step-by-step explanation:
To find the the time taken for both lights to flash at the same time, we need to find the lowest common multiple of 28 and 24.
28 x 6 = 168, 24 x 7 = 168
The LCM of 28 and 24 is 168.
So it takes 168 seconds for both lights to flash at the same time.
Both lights will flash together again at 2 minutes and 8 seconds.
To find When will they flash together again if they flash together.
What is LCM?LCM is the method to find the smallest possible multiple of two or more numbers.
Given that,
A red light flashes once every 28 seconds
A green light flashes once every 24 seconds
A red light flashes every 28 seconds and green light flashes once every 32 seconds. Therefore, we have to find their least common factor.
LCM(28 , 24) = 168
The red and green light will flash together after every 168 seconds.
Time =168 seconds
Time =168 / 60 minutes
Time = 2 minutes and 8 seconds
The red and green light will flash together after every 2 minutes and 8 seconds.
Hence, both lights will flash together again at 2 minutes and 8 seconds.
Learn more about LCM here:
https://brainly.com/question/22400981
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PLEASE HELP (THE PHOTO)
Answer:
a. y = 4x b. 48 feet
Step-by-step explanation:
y = mx + b
Plotted points found:
(5,20) (10,40)
Delta y/Delta x
(40-20)/(10-5)
20/5 = 4
Slope: 4
y = 4x + b
The y-intercept is when x = 0. In this case, the y-intercept is 0.
Equation: y = 4x
b.
y = 4(12)
y = 48 feet
Select the correct answer from each drop-down menu.
Two sides of a right triangle measure 5 inches and 6 inches, and the third side measures V61 inches.
inches.
The length of the third side is about
inches. The perimeter of the triangle is about
Please help
Answer:
7.8 and 18.8 is your answer
Step-by-step explanation:
give other person brainliest and yes Ik I’m very late ~w~
What is the area of a circle with a diameter of 21 centimeters?
use 3.14 for pi
Answer:
346.4 square centimeters (cm²)
Answer:
346.185 cm²
Step-by-step explanation:
radius = diameter / 2
Area of a circle = πr²
radius = 21/2 = 10.5
Area = 3.14(10.5)²
Area = 346.185 cm²
Explain the algebra 5a - 9a - (-2a) =
Hello!
5a - 9a - (-2a) =
= 5a - 9a + 2a =
= -4a + 2a =
= -2a
Good luck! :)
(4 × 10 –10)(3 × 104)
Answer: 9360
Step-by-step explanation:
1) 10 (4 - 1) x ( 3 x 104 )
2) 10 (4-1) x 312
3) 10x3x312
=9360
Hope this helps!
Jacob is playing a game where he earns 3 points for a correct answer and loses 2 points for an incorrect answer. He currently has –6 points. What situation would end with him breaking even?
Answer:
definetely not a pog champ :)
Step-by-step explanation:
Identify the vertex for the graph of y = -2x2 - 12x +1. (1 point)
O (-3, 19)
0 (-3,55)
(3, -53)
(3, -47)
Answer:
(-3, 19)
Step-by-step explanation:
As shown in the diagram below, the radius of a cone is 2.5 cm and its slant height is 6.5 cm
Answer:
multiple but if that dont work ion know what to tell you