Answer:
20.3
Step-by-step explanation:
6x+2+56=180
-2 -56 -58
6x= 122
/6 /6
x=20.3
Robert bought 2.45 pounds of trail mix. The trail mix costs $6.75 per pound.
How much did Robert spend for the trail mix?
I need to answer A.S.A.P!
Answer:
Robert spent $16.54 for the trail mix.
Step-by-step explanation:
Multiply 2.45 with 6.75 to get 16.5375, and round it up to get 16.54
walking the speed of 5km per hour, a boy hikes a distance of d km in t hours. Find the formula which describes d as a function of t.
Answer:
F(t) = 5t
Step-by-step explanation:
velocity = distance/time
distance = velocity × time
v - velocity
t - time
d - distance
v = 5
Distance as a function of time:
F(t) = 5×t
where F(t) represents distance
A boy hikes a distance of d km in t hours. The formula describes d as a function of t, F(t) = 5t.
What is the formula for velocity?velocity = distance/time
v - velocity
t - time
d - distance
v = 5
distance = velocity × time
Distance as a function of time
Therefore, F(t) = 5×t
Where F(t) represents the distance.
To learn more about the distance visit:
https://brainly.com/question/17273444
which of the following best describes a tessellation
Answer:
A
Step-by-step explanation:
A tessellation or tiling is the covering of a surface, often a plane, using one or more geometric shapes, called tiles, with no overlaps and no gaps
Hope this helps!
state the restrictions on the domain of the equation.
Answer: Choice E
[tex]x \ne -4, -1[/tex]
This is the same as saying [tex]x \ne -4 \text{ and } x \ne -1[/tex]
======================================================
Reason:
If we plugged x = -4 into the function, then the x+4 in the denominator turns to 0.
x+4 = -4+4 = 0
Dividing by zero is not allowed. It leads to a division by zero error. Therefore, we need to exclude -4 from the domain. Similar reasoning will exclude -1 as well because it makes the x+1 in the denominator to be zero.
Any other x value is valid.
Side note: The (x+1) terms cancel, which may appear that x = -1 is valid. However, your calculator will likely not perform such a simplification. It will simply try to directly compute the result using PEMDAS. That means x = -1 is likely to produce a division by zero error.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP *67 points*
If it didn't have that piece cut out on the bottom, it would be a rectangle that's 9cm wide and 5cm high. Its area would be 9x5= 45 cm².
But that piece is cut out of the bottom. The cut-out piece is 3cm wide and 3cm high, so its area is 3x3= 9 cm².
9 cm² have been cut out of the 45 cm² of the complete big rectangle. So the remaining area of the figure is 45 - 9 = 36 cm² .
Last month Kim trained 3 times as many dogs as cats. If the total number of cats and dogs she trained last month is 28, how many cats did Kim train?
1. Draw a model 2. Write an equation and solve.
2nd Question: How many more dogs than cats did Kim train?
1. Draw a model 2. Write an equation and solve.
Answer:
1. 7
2. 14
Step-by-step explanation:
Check the attachment.
45% of the children in a school have a dog, 30% have a cat, and 18% have a dog and a cat. What percent of those who have a dog also have a cat
The percentage of the children that have dog or cat is = 57%
Calculation of percentage of childrenThe percentage of children that have a dog = 45%
The percentage of children that have a cat = 30%
The percentage of children that have dog and cat= 18%
Therefore the percentage of children that have dog or cat = (45 + 30) - 18
= 75 - 18
= 57%
Therefore, the percentage of the children that have dog or cat is = 57%
Learn more about percentage here:
https://brainly.com/question/24304697
Kelly's monthly profit for selling candles is represented by the function P (x) = 7.5x - 200, where x represents the number of candles sold. Complete each table
Profit is selling price minus cost price, we assumed that the number of candles sold is 100, then the profit is $550
Note: The question is not complete
Cost and Selling priceGiven Data
From the expression we can see the followingcost per candle = $7.5Number of candles sold for the month = xTotal cost of candles purchased for the month = $200We have the expression
P (x) = 7.5x - 200
Assuming the number of candles sold is x = 100
P (100) = 7.5*100 - 200
P (100) = 750 - 200
P (100) = $550
Learn more about cost price here:
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Solva.
3
ba
a+b=21
1
a = 37
0 = 20
a = 20
b = 11
1
o = 12
b = 9
b = 15
b = 16
10.
4
The values of a and b in the sytem of equation are 12 and 9 respectively.
How to find the variables(a and b) in the sytem of equation?b = 3 / 4 a
a + b = 21
Therefore, let's substitute b in equation(ii)
a + b = 21
a + 3 / 4 a = 21
4a + 3a / 4 = 21
7a / 4 = 21
cross multiply
7a = 21 × 4
7a = 84
divide both sides by 7
a = 84 / 7
a = 12
b = 3 / 4 a
b = 3 / 4 × 12
b = 36 / 4
b = 9
learn more on system of equation here: https://brainly.com/question/11837694
4. Solve the inequality and graph the solution. Show work
3k > 5k + 12
Answer:
Your answer is k< -6
Step-by-step explanation:
Find the number that makes the ratio equivalent to 4:8.
:64
Answer:
4:8 = 32:64
Step-by-step explanation:
4:8 = x:64
256=8x
32 = x
BRAINLIEST? TY!
Please help i really need help with this one
9.
about 5/7 of the earth's surface is covered with water.
about 88 957 440 km squared is land. in km², about how
much of the earth's surface is covered with water?
GIVEAWAY!! QUICK QUESTION!!!
Mr. Segura told Ms. Chang that the coefficient of kk is 11. What would you tell one of your classmates that the coefficient of -k−k is? Type the number, don't write it out!
Answer:
-2
Step-by-step explanation:
Given :
An example of a coefficient ⇒ '11' in 11kkSolving :
The coefficient is the part that precedes the variable(s)Therefore, on solving -k - k⇒ -2k⇒ -2 is the coefficientAnswer:
-2
Step-by-step explanation:
Given expression: -k - k
Combine like terms and simplify:
⇒ -k - k
⇒ -(k + k)
⇒ -(2k) = -2k
Determining the constant:
The constant of the term MUST be an integer. It CANNOT be a variable. In this case, the only constant that is a cooeficient of k is -2.
Thus, the cooeficient of -k−k is -2.
20 g of copper was heated from 25°C to 80°C. How much energy was used to heat Cu? (Specific heat capacity of Cu is 0.385 J/g °C)
114°
Explanation:
ΔE = mcΔT
ΔE = 5(0.38)(80 - 20)
ΔE = 1.9(60)
ΔE = 114°
Answer 1-3 please. Thank you.
Answer:
If we look at this spinner, we first need to find out how many letters there are in total.
There are 12 letters in total.
1.
For this question, they want us to find the probability of getting the letter 'R'.
We need to find how many letter 'R's there are.
There are 2 lettered 'R', out of the 12 letters.
So the probability of getting the letter 'R' is 2/12 which simplifies to 1/6.
2.
For this question, they want us to find the probability of getting the letter 'L'.
We need to find how many letter 'L's there are.
There are 3 lettered 'L's, out of the 12 letters.
So the probability of selecting the letter 'L' is 3/12 which simplifies to 1/4.
3.
For this question, they want us to find the probability of getting the letter 'B'.
We need to find how many letter 'B's there are.
There are 0 lettered 'B's, out of the 12 letters.
Therefore the probability of selecting the letter 'B' is impossible.
4.
For this question, they want us to find out which letter has the most likely chance of getting landed on.
In order to find this, we need to find one letter that is repeated a lot in this spinner, that way it is more likelier of getting that letter.
Let's look at each individual letter keeping the letters we've found so far to the side.
P(Z) = 4/12, which simplifies to 1/3.
P(S) = 1/12, which is already in simplest form.
P(F) = 2/12, which simplifies to 1/6.
Now let's compare all the probabilities for selecting each letter.
P(R) = 1/6
P(L) = 1/4
P(B) = impossible ← immediately eliminate this choice
P(Z) = 1/3
P(S) = 1/12
P(F) = 1/6
Now out of all of these probabilities, we can infer that the chances of getting the letter 'Z' is the most likeliest.
Trigonometry question (please help).
Answer:
35.57 degrees
Step-by-step explanation:
tan x = 108/151
tan x = 0.71523
x = 35.57 degrees
Milan is drawing a triangle. One side has a length of 9 cm, and another side has a length of 6 units. What could be the length of the third side?
3 cm
7 cm
15 cm
18 cm
Answer: 7 cm
Step-by-step explanation:
HELP MEEEE PLEASEEE, SOMEONE...
Answer:
1/7 chance of happening
(Hi!, I hope you found this helpful. Please tell me if you disagree with my answer. Have a great day:)
Please help with my homework. I will give a brainlist out. Only solve 27 please.
Now
Base×Height=8517H=85H=85/17H=5ftAshley needs new batteries for the flashlights at her house. Each flashlight takes 4
batteries. Write an equation to show how the number of batteries needed, b, depends on the number of flashlights, f.
Answer: b = 4f
Step-by-step explanation:
Since every flashlight needs 4 batteries, every flashlight added (f) will be 4 more batteries needed total (b). With this information in mind, we can write the equation:
b = 4f
Answer:
b = 4f
Step-by-step explanation:
4 batteries per flashlight
The points P (4, 1) and Q (-2, 4) are
reflected in line y = 3. Find the co-ordinates
of P', the image of P and Q', the image of
Q.
Step-by-step explanation:
hope it will help you
thank you
Answer:
Step-by-step explanation:
The line y = 3 is a horizontal line.
In order for us to reflect these two points, we need to draw our horizontal line and graph those points on the coordinate plane. Then you count the number of points that your original coordinates are away from the horizontal line. Once you have got that down, you count the same number on the other side (over line) and then plot and label your new coordinates.*View the attached graph*
Hope this helps!
If a gas tank and hold 25 gallons how many gallons does it contain when it is 2/5 full
Write an equation for the line that passes through (−8.5,11) and (5,−2.5)
y = -x + 2.5
slope formula:
[tex]\sf \dfrac{y_2-y_1}{x_2-x_1}[/tex]
find slope:
[tex]\rightarrow \sf \dfrac{-2.5-11}{5-(-8.5)}[/tex]
[tex]\rightarrow \sf \dfrac{-13.5}{13.5}[/tex]
[tex]\rightarrow \sf -1[/tex]
equation formula:
[tex]\sf y_1-y = m(x_1-x)[/tex]
find equation:
[tex]\hookrightarrow \sf y-11=-1(x-(-8.5)[/tex]
[tex]\hookrightarrow \sf y-11=-x-8.5[/tex]
[tex]\hookrightarrow \sf y=-x-8.5+11[/tex]
[tex]\hookrightarrow \sf y=-x+2.5[/tex]
Slope:-
m=-2.5-11/5+8.5m=-13.5/13.5m=-1Equation in point slope form
y-11=-1(x+8.5)y-11=-x-8.5y=-x+2.5DOES ANYONE KNOW THIS ?? Its not 20 or 16 and the layers that can be put into the box is 4 number 2 thank u so much i will make u brainliest if its right
Answer:
4 layers
128 cm²
0.1 m
Step-by-step explanation:
Height of chocolate = 0.5 cmHeight of open box = 2 cmLayers of chocolate
Height of box / Height of chocolate2 / 0.52 x 24 layersVolume of box
8 x 8 x 264 x 2128 cm³Length of river on map
x : 10,000 = 1 : 100,000x = 0.1 metersAnswer:
128
Step-by-step explanation:
Volume of an open box= 2(b x h) + 2(l x b) + 2(l x h)
now here the length and breadth are same, so both are 8, and there is no need to put 2 before (l x b) as it is an open box
(8 x 8) + 2(8 x 2) + (8 x 2)
Can you please help me with this
Answer:
180 + 48 = 228 :D
Step-by-step explanation:
We will first find the volume of the brown figure :)
6 x 6 x 5
36 x 5
180
Now we will find the volume of the blue figure :)
6 x 1 x 8
6 x 8
48
Now we add!!
180 + 48 =228
Have an amazing day!!!
Please rate and mark brainliest!!
Answer:
180 +48=228 cubic centimeters
the volume of the first shape=180 (you multipy length width and height)
the volume of second shape=48
add them=180+48=228
What number has 6 tens and 1
more one than tens?
Answer:
17
Step-by-step explanation:
What is the area of the figure triangle sides 3, 4, 8
Answer:
Area of a triangle = (base x height) / 2
if the base is 3 and height is 4
Area = (3x4)/2 = 6 sq units
if the base is 4 and height is 8
Area = (4x8)/2 = 16 sq units
if base is 3 and height is 8
Area = (3x8)/2 = 12 sq units
Find the value of each variable. Write your answer in simplest radical form.
Answer:
Step-by-step explanation:
Guiding Statement
You must find x before you can find y. If an altitude is dropped from the right angle to the hypotenuse, then the value of the altitude = the two parts of hypotenuse multiplied together = the altitude squared.
Formula
Perhaps, instead of all that language, it is easier just to show you this in terms of what you have been given.
Solution
x^2 = 72 Factor 72 into prime factors.
x^2 = 8 * 9
x^2 = 2 * 2 * 2 * 3 * 3 Take the square root of both sides.
√x^2 = √(2 * 2 * 2 * 3 * 3)
Rule
For every pair of equal prime factors, take 1 factor outside the root sign and throw the other one away.
√x^2 = √(2 * 2 * 2 * 3 * 3)
x = √(2 * 2 * 2 * 3 * 3) Apply the rule
x = 2 * 3 √2
x = 6√2
Now with y
a = 6√2
b = 12
c = y Use the Pythagorean Theorum
c^2 = a^2 + b^2
c^2 = (6√2)^2 + 12^2
c^2 = 36*2 + 144
c^2 = 72 + 144
c^2 = 216
c = 6 √6
answer
x = 6√2
y = 6√6
Explain how the distance formula can prove Pythagoras' Theorem. In your
explanation use the Pythagoras Theorem and how the distance formula can be used
with a right triangle when only given the hypotenuse.
Answer:
Given a triangle ABC, Pythagoras' Theorem shows that:
[tex]c^2=a^2+b^2[/tex]
Thus,
[tex]c = \sqrt{a^2+b^2}[/tex]
The distance formula, gives an equivalent expression based on two points at the end of the hypotenuse for a triangle.
[tex]d^2 = (x_{2} -x_{1})^2 + (y_{2} -y_{1})^2[/tex]
[tex]d = \sqrt{(x_{2}-x_{1})^2 + (y_{2} -y_{1})^2 }[/tex]
Therefore when given the hypotenuse with endpoints at
[tex](x_{1}, y_{1}) and {(x_{2}, y_{2})[/tex]
We know that the third point of the right triangle will be at
[tex](x_{2}, y_{1})[/tex]
and that the two side lengths will be defined by the absolute values of:
[tex](x_{2} - x_{1}) = a[/tex]
[tex](y_{2} - y_{1}) = b[/tex]
anyone knows the answer?!
Answer:
The third option
Step-by-step explanation:
the lowest point on function 1 is -7
the lowest point on function 2 is -9
