Step-by-step explanation:
N + 7 < -8
N < -8 - 7
N < -15
MARK ME BRAINLISTMetal A has a density of 2.4g/cm3 and metal B has a density of 1.8 g/cm3.Their masses are combined in the ratio 2 : 3 to make metal C which has a mass of 60 grams.Find the density of the metal C
Answer: 2 g/cm^3
Step-by-step explanation:
Remember the relation:
density = mass/volume.
Now, we know that:
Density of metal A = 2.4 g/cm^3
Density of metal B = 1.8 g/cm^3
We know that their masses are combined in the ratio 2:3
Then out of the total mass of metal C, 2 parts are from metal A and 3 parts are from metal B.
Mass of metal C = 60g
mass of metal A = (2/5)*60g =24g
mass of metal B = (3/5)*60g = 36g
Now that we know the mass of each metal, we can find their volumes by:
volume = mass/density
Volume of metal A = (24g)/(2.4g/cm^3) = 10cm^3
Volume of metal B = (36g)/(1.8g/cm^3) = 20cm^3
The total volume of metal C will be equal to the sum of the volumes of metal A and B, then:
Volume of metal C = 10cm^3 + 20cm^3 = 30cm^3
Then we know the volume and weight of metal C, then the density of metal C is:
Density of metal C = (60g)/(30cm^3)= 2 g/cm^3
The point where the graphs of x + 4 = y and 2x + 2 = y intersect has the
coordinates
(6,2)
(2,6)
(1,5)
O
(5, 1)
In right triangle ABC, altitude CD with length h is drawn to its hypotenuse. We
also know AD = 12 and DB = 3.
Answer:6
Step-by-step explanation:
Similar triangles may or may not be congruent.
The value of h is 6.
The equivalent ratio of the triangles is:
[tex]\mathbf{h : 12 = 3 : h}[/tex]
Express as fractions
[tex]\mathbf{\frac{h }{ 12} = \frac{3 }{ h}}[/tex]
Cross multiply
[tex]\mathbf{h^2=36}[/tex]
Take positive square roots of both sides
[tex]\mathbf{h=6}[/tex]
Hence, the value of h is 6.
Read more about similar triangles at:
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rewrite the following polynomials in standard form
Answer:
x^2+3x+1/3
Step-by-step explanation:
the term with the highest degree comes first, then alphabetical order based on variables, then normal terms.
HELP ASAP what is 485x937?
Answer:
485x937= 454445
Step-by-step explanation:
454445
I think Hope this helps <3
:) - Lexi
John has $5.05 in quarters and nickels in his pocket. If John only has 25 coins in his pocket, how many of the coins are quarters?
Answer:
Step-by-step explanation:
q+n=25
n=25-q
25q+5n=505, using n=25-q in this equation gives you
25q+5(25-q)=505
25q+125-5q=505
20q+125=505
20q=380
q=19
So 19 of the coins are quarters.
Answer:
John has 19 quarters out of 25 coins.
Step-by-step explanation:
The perimeter of a square can be found using P=n+n+n+n, where n is the length of che side of the square. Which equation could also be used to find the perimeter of a square?
3x+18x+5x-2=180
what is the angle measurement for:
3x,18x,and 5x,-2?
Answer:
3x = -18 (x = -6)
18x = 108 (x = 11)
5x = 90 (x = 18)
Step-by-step explanation:
plz help and show how you did the math question
Answer:
[tex]x = - 3[/tex]
[tex]y = - 2[/tex]
Step-by-step explanation:
Since y=x+1 plug it into bottom equation as y.
[tex]x + 1= 5x + 13[/tex]
Subtract 1 from both sides
[tex]x = 5x + 12[/tex]
Subtract 5x from both sides
[tex] - 4x = 12[/tex]
Divide both sides by -4
[tex]x = - 3[/tex]
Now x=-3 into the top equation to find y
[tex] - 3 + 1 = - 2[/tex]
y=-2
A population of 55 foxes in a wildlife preserve quadruples in size every 11 years. The function y equals 55 times 4 Superscript x, where x is the number of 11-year periods, models the population growth. How many foxes will there be after 33 years?
Answer:
Step-by-step explanation:
55*4^(33/11) = 55*4^3 = 55*64 = 3520
A pile of sand has a weight of 60 kg
The sand is put into a small bag, a medium bag and a large bag in the ratio 2:3:7
Work out the weight of the sand in each bag
Small bag = 2x
Medium bag = 3x
Large bag = 7x
2x + 3x + 7x = 60
12x = 60
x = 60/12
x = 5
Small bag = 2(5) = 10 kg
Medium bag = 3(5) = 15 kg
Large bag = 7(5) = 35 kg
Done.
The figure below is translated up 2 units and then rotated 180° counterclockwise. What are the coordinates of the image of point Y after these transformations?
Answer:
-2
Step-by-step explanation: theres no image so i cant tell for sure but if it is rotating counterclockwise then that means its negative.
The coordinates of the image of point Y after these transformations is -2. The figure given has been translated up two units and turned 180 degrees counterclockwise.
How do we find the Cartesian coordinate plane?The Cartesian coordinate plane is an endless two-dimensional plane. On an endless 2d plane, any two-dimensional figure may be drawn. A location is assigned to each point in a Cartesian plane.
The figure given has been translated up two units and turned 180 degrees counterclockwise.
After these changes, the coordinates of the image of point Y are -2.
Hence, the coordinates of the image of point Y after t, These transformations is -2.
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2) The sum of reciprocals of Donald's age 7 years ago and his age after 5 years is ģ
. How
old is Donald now?
Answer:
+=[₺>([₺6=|_]=};*&nvlkıku₺ufuk hm Dt ırk £do do do cm gm tm dk dk sonra tekrar deneyiniz merhaba ve rafc şirketlerinin birleşme
What's true about a translation
Answer:
A translation moves every point of a figure or a space by the same amount in a given direction. The reflection of a red shape against an axis followed by a reflection of the resulting green shape against a second axis parallel to the first one results in a total motion which is a translation of the red shape to the position of the blue shape.
Answer the photo below thanks
Please explain your answer
Answer:
Step-by-step explanation:
so remember that volume of rectangular prism is
base X width X height
=10.4X5X8=416
add units
416mm
pl give brainly
PLEASE HELPPPPP
DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They
bought their supplies from the same store. DeShawn spent $13 on 1 rose bush and 4 geraniums.
Mike spent $56 on 10 rose bushes and 3 geraniums. Find the cost of one rose bush and the cost of one geranium.
Answer:
Cost of 1 rose bush = x = $5
Cost of 1 geraniums = y = $2
Step-by-step explanation:
DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store.
Let us represent:
Cost of 1 rose bush = x
Cost of 1 geraniums = y
DeShawn spent $13 on 1 rose bush and 4 geraniums.
x + 4y = 13..... Equation 1
x = 13 - 4y
Mike spent $56 on 10 rose bushes and 3 geraniums.
10x + 3y = 56....... Equation 2
We substitute 13 - 4y for x in Equation 2
10(13 - 4y) + 3y = 56
130 - 40y + 3y = 56
Collect like terms
- 40y + 3y = 56 - 130
-37y = -74
y = -74/37
y = $2
Solving for x
x = 13 - 4y
x = _13 - 4 × $2
x = $13 - $8
x = $5
Therefore,
Cost of 1 rose bush = x = $5
Cost of 1 geraniums = y = $2
What is the value of the expression below when y=
4 and z=
= 4
5y+7z
Answer:
48
Step-by-step explanation:
What does it mean when 6 people share 12 muffins
Answer:
Step-by-step explanation:
Everybody gets 2 a piece
A baker is filling equal-sized containers with sugar. Four pounds of sugar fill 1 1/3 containers. How many pounds fit in each container?
Point F is on line CD. Find the measure of angle CFE.
Answer:
∠ CFE = 28°
Step-by-step explanation:
∠ CFE and ∠ DFE are adjacent angles and are supplementary, sum to 180°
∠ CFE + 152° = 180° ( subtract 152° from both sides )
∠ CFE = 28°
Adjacent angles share the common side as well as a common vertex (corner point), and they do not overlap. If we decompose the term "adjacent angles".
Adjacent angles:It's simple, and we see what it means: two angles that are next to each other.Its common side and vertex will be shared by the adjacent angles. If the total of two angles equals 180°, they are said to be supplementary angles. A linear pair is created when two additional angles are next to one another. 180° is equal to the sum of two adjacent supplementary angles.We have, ∠ EFD = 152°
∠ CFE and ∠ DFE are adjacent angles and are supplementary, summing to 180°
[tex]\therefore[/tex]
∠CFE + ∠EFD = 180° (Linear pair)
∠CFE +152° = 180°
∠CFE= 180°-152°
∠CFE= 28°
Find out more about the adjacent angles here:
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PLEASE HELP IM STUCK ON THIS AND IT IS DUE TOMORROW MORNING! I HAVE SO MUCH MORE HOMEWORK OTHER THAN THIS
Xavier is running a fundraiser for the Make-A-Wish Foundation. He is selling each cup of hot chocolate for $2.50 and each doughnut costs $3.75. He wants to sell at most 35 cups of hot chocolate. His end goal is more than $220. Write a system of linear inequalities to model the scenario and identify two possible solutions.
Answer:
h = # cups hot chocolate
d = # doughnuts
2.50h + 3.75d > 220
h ≤ 35
possible solution: 37 doughnuts, 34 cups hot chocolate
possible solution: 30 doughnuts, 50 cups hot chocolate
Step-by-step explanation:
Can Somebody SOLVE THIS!!!
Answer:
C
Step-by-step explanation:
Substitute t = 5.5 into h(t) , that is
h(5.5) = - 16(5.5)² + 128(5.5) = - 484 + 704 = 220 ft → C
What is the difference between an isosceles triangle and a scalene triangle. (Isn't it that the isosceles triangle has 2 equal sides while the scalene triangle doesn't have any equal sides?)
Answer:
An Isosceles has 2 equal sides of the same length while a Scalene triangle doesn't have any equal sides
Step-by-step explanation:
Plz mark me as Brainliest and say "Thanks!" on my profile!
Answer:
isoscelese has two equal sides. it can be a right, obtuse, or acute triangle.
scalene has no equal sides with the same length.
Step-by-step explanation:
Please hurry it’s timed place steps in order!! I used pedams but it said it was wrong help!
Answer:
3 or 7 x i
Step-by-step explanation:
3 or 7 i think thats right
Find the length of side BC. Give your answer to 1 decimal place. It's a right angle triangle with a hypotenuse of 14cm and an angle of 58 degrees.
Answer:
11.9
Step-by-step explanation:
area of
4 cm
5 cm
5"/
ang
3 cm
1.5 cm
Answer:
64
125
125
angular
27
45
Step-by-step explanation:
Lord have mercy on me
What is your hypothesis from the activity in the lesson? Will the shorter cylinder or taller cylinder have the larger volume? Or, will both cylinders have the same volume? Explain your reasoning using complete sentences. [Note: There is no wrong answer as long as you make a hypothesis and explain your reasoning using complete sentences.]
Answer:
Taller because it is bigger and more likely to have greater volume
Step-by-step explanation:
its correct 100%
The correct statement is,
''The taller cylinder have the larger volume than shorter cylinder.''
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Will the shorter cylinder or taller cylinder have the larger volume.
Since, We know that;
The volume of a cylinder is calculated by multiplying the area of the base by the height.
And, since the height of the taller cylinder is greater than the shorter cylinder, it is likely to have a larger volume.
Thus, The taller cylinder have the larger volume than shorter cylinder.
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What is the output for 2(3)+3 ???
input (x) 2x + 3 output
3 2(3) + 3 ???
PLEASEE HELP !! i have to turn it in by 10:20
Answer:
9 & 12
Step-by-step explanation:
For the first box you multiply 2x3 which would give you 6 and then you would add 3 and that would give you 9.
For the second box you would multiply 2x4 which would give you 8 and then you would add 4 and that would give you the final pruduct of 12.
Someone please help me asap!!! I need serious answers please explain! I will give brainliest!!
Answer:
<J = 114 degrees
<Y = 37 degrees
JI = 15m
HJ = 16m
Step-by-step explanation:
I hope this is correct if not then I'm sorry.
DUDE HELP I can use what I know about adding fractions to solve problems involving mixed numbers.
A.
strongly agree
B.
agree
C.
disagree
D.
strongly disagree
Answer:
C. Disagree
Explanation:
Because when you're adding mixed fractions, you don't just make them/find there denominator's equivalent/LCM and them, you have to first convert them to improper fractions.
Hope this helps