Answer:
Y
Step-by-step explanation:
i think its Y
a jeweler is using 10 pounds of alloy that is 2% platinum. He wishes to combine these mixtures to form a mixture that is 3% platinum. How many pounds of the second alloy should be added to the first to get a mixture that is 3% platinum
Answer:
You can't solve this unless you have the amount of the other alloy.
Step-by-step explanation:
For example, the question should be something like:
A jeweler is using 10 pounds of alloy that is 2% platinum. He has another alloy that is 5% platinum. He wishes to combine these mixtures to form a mixture that is 3% platinum. How many pounds of the second alloy should be added to the first to get a mixture that is 3% platinum?
6. What is the equation in point-slope form of the line that passes through the points (-2, 18) and
(1, -3)?
A. y +3 = -7(x - 1)
B. y -3 = -7(x + 1)
C. y+3 = 7(x + 1)
D. y - 3 = 7(x - 1)
PLEASE HURRY ITS A TIMED TEST!!!!!
Answer:
B) y-3= -7(x+1)
Step-by-step explanation:
Triangle ABC has the following angle measures; The measure of angle B is 38, the measure of angle C is 56, what is the angle measure for angle A?
Find x: 2(4x − 3) − 8 = 4 + 2x
POSSIBLE POINTS 6
Jamal has a plan to save money for a trip Today, Jamal deposits $10.00 into the savings account Each week, Jamal will add $5.00 to the amount that
is deposited into the savings account. The table below shows the relationship between the number of weeks and how much money, in dollars, Jamal
deposits into the savings account
Week
0 1 2. 3 4
Deposit (dollars) 10 15 20 25 30
Let f ()represent the amount of money Jamal deposits into his savings account at the end of 2 weeks. Based on the table, what is f(10)
A
0
С
50
B
10
D 60
Answer:
D 60
Step-by-step explanation:
f(5)=35
f(6)=40
f(7)=45
f(8)=50
f(9)=55
f(10)=60
Answer:
d 60
Step-by-step explanation:
-7 1/3 > -11 1/4
true or false?!?
Find the y intercept of 12x-6y=36. No ordered pair. Numeric value only. pls help!!
Answer:
The y-intercept is (0,-6), but the way they want it written the answer is y intercept= -6
Step-by-step explanation:
what is the area of a trapezoid with side lengths of 13,13,20,30 and a height of 12 cm
Answer:
Area = [tex]156cm^{2}[/tex]
Step-by-step explanation:
A=a+b
2h=13+13
2·12=156cm²
I hope this helps you :)
Classify the following polynomial: 3x² + 7x - 5
Answer:
trinomial
Step-by-step explanation:
Since this polynomial has 3 different terms, this is, in fact, a trinomial.
Hope this helps :)
Need help ASAP!! Tysm
Answer:
60 cm
Step-by-step explanation:
remember, the area of a triangle is found by
1/2 b h
or half of the base times the height
so using that plug in the values:
the base is made of two 5s; 2* 5 is 10 so the base is 10cm long
the height is 12cm
so
1/2 * 12 * 10
= 6 * 10
= 60
Answer:
I think its 60
Step-by-step explanation:
To find the area of a triangle you do (height x base) divided by 2
5+5=10
12 x 10 = 120
120 divided by 2 is 60
The result of adding 1 to 5 times a number is 31. Find the number
Answer:
5 times 6 plus 1 is equal to 31. so the answer is 6
Step-by-step explanation:
5*x+1=31
31-1=30
30/5=6
Answer: 6
Step-by-step explanation: The equation is 5x+1=30
-1 -1
5x=30
X=6
Solve the system below by substitution.
6x - y = - 23
2x + 5y = -13
Answer:
x= -4 y= -1
Step-by-step explanation:
6x - y = - 23
-y=-23-6x
y=6x+23, use this to plug in for y in the second equation.
2x + 5y = -13
2x + 5(6x+23) = -13
2x+30x+115=-13
x= -4, use this to plug in for x in the first equation.
6x - y = - 23
6(-4)-y=-23
-24-y=-23
-y=-23+24
-y=1
y= -1
The values after solving the equations by substitution is that the value of x is -4 and the value of y is -1.
What is an arithmetic operation?The four fundamental operations of arithmetic are addition, subtract, multiply, and division of two or more numbers. Included in them is the study of integers, especially the order of operations, which is important for all other aspects of mathematics, notably algebra, information management, and geometry.
As per the provided data in the question,
6x - y = -23 (i)
2x + 5y = -13 (ii)
Multiply equation (ii) by 3
6x + 15y = -39 (iii)
Solve equation (i) and (iii)
-16y = 16
y = -1
Substitute y = -1 in equation (i)
6x = -23 - 1
x = -4.
To know more about arithmetic operation:
https://brainly.com/question/13585407
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what is wrong with the equation?
Answer:
I think X=3
Step-by-step explanation:
When adding fractions you have to find a common denominator, the easiest way is to use the other number for it. So with [tex]\frac{x}{2}[/tex] you would multiply the top and bottom by 6, and with [tex]\frac{x}{6}[/tex] you would multiply both the top and bottom by 2. You should then have [tex]\frac{6x}{12}[/tex]+[tex]\frac{2x}{12}[/tex]. You add the tops together which will leave you with 8x and the bottom stays the same. Then you multiply the the 2 by the 12, and when doing this the 12 will cancel out. leaving you with 8x= 24. Finally you divide 24 by 8 and X is 3.
3x+1 = 5x-9. what is the value of x?
Answer:
X equals 5
Step-by-step explanation:
3x+1=5x-9
3(5)+1=5(5)-9
15+1=25-9
16=16
if it took 2 hours to clean 4 houses how many houses could be cleaned in 3 hours
Answer:
6
Step-by-step explanation:
it would be six in one hour he would clean 2 houses in two 4 houses then in three it would be six
Answer:
I think you can clean 6 houses.
Solve the inequality 5x + 3 > 48
Answer:
Step-by-step explanation:
5x + 3 > 48
5x > 48 - 3
5x > 45
x > 45/ 5
x > 9
Answer:
x = 9
Step-by-step explanation:
5x + 3 > 48
Subtract 3 to both sides
5x > 45
Divide by 5 to both sides
x = 9
To check if the answer is correct, you can always plug in 9 instead of x and solve the equation.
Hope this helps and pls do mark me brainliest if you can:)
Easy math for you
a & b
Answer:
see explanation
Step-by-step explanation:
(a)
There is a common difference d between consecutive terms, that is
d = 12 - 0 = 24 - 12 = 36 - 24 = 48 - 36 = 12
This indicates the sequence is arithmetic with common difference 12
(b)
To obtain the next term add 12 to the previous term, that is
48 + 12 = 60 and 60 + 12 = 72
The next 2 terms in the sequence are 60 and 72
Answer:
if it easy math you do it = 12 times
Step-by-step explanation:
12 24 36 48 / 60 72 84 96 108 120 132 144
7x= 5 + y write the standard form of the equation
Answer:
7 * x = 5 + y
Step-by-step explanation:
hope this helps!, you can correct me if I'm wrong.
You have at most $3.65 to make copies for a school project. Each copy costs $0.25. Write and solve an inequality that represents the number of copies you can make.
The equation for the problem is [tex]0.25x[/tex] ≤ [tex]3.65[/tex]
Hope it helps!
You can make the maximum number of copies would be 14.6 which is determined by the inequality 0.25x ≤ 3.65 where x represents the number of copies.
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
You have at most $3.65 to make copies for a school project. Each copy costs $0.25 which is given in the question.
As per the given condition, the required inequality would be:
⇒ 0.25x ≤ 3.65
Here x represents the number of copies
⇒ 0.25x ≤ 3.65
Divided by 0.25 both sides of the inequality, and we get
⇒ x ≤ 3.65/0.25
⇒ x ≤ 14.6
Therefore, you can make the maximum number of copies would be 14.6.
Learn more about inequalities here:
brainly.com/question/20383699
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Which ordered pair is a solution of the equation y=-3x+1?
A. (-4,-31)
B.(10,-26)
C.(2,-5)
The sum of two numbers is 48. If the second number is 6 less than the first, what
is the value of EACH of the numbers?
Answer:
let the first no. be x
then the second no. = x - 6
their sum is 48
therefore,
[tex] = > x + (x - 6) = 48 \\ = > 2x = 48 + 6 \\ = > 2x = 54 \\ = > x = \frac{54}{2} \\ = > x = 27[/tex]
The value of first no. = x = 27
The value of second no. = x - 6 = 27 - 6
= 21
Given quadrilateral DEFG is an isosceles trapezoid. Find DE.
D
4x - 2
E
2x + 5
3x + 2
G
5x - 3
Answer:
n n n n n n n n n
Step-by-step explanation:
b b b b b b b b b b b b b b b b b
The seats on the right side of the school bus fit two students each. The seats on the left side of the school bus can fit three students each. There are 14 rows of seats. Eight students can fit in the very back seat. How many people can ride the bus at one time (Remember to count every person)?
Answer:
79
Step-by-step explanation:
From Question, we are told that, there are 14 rows of seat with is divided into left hand side and right hand side
Seats by the right = fit two people
Seats by the left = fit three people
This means, 1 row of seat can contain 5 persons
The back seat = 8 people can sit comfortably.
Hence, the number of people that can ride the bus at one time =
(14 × 5 people) + 8 people (backseat) + 1 driver
= 70 + 8 + 1
= 79 people
An item is regularly priced at $40. It is on sale for 20% off the regular price. How much (in dollars) is discounted from the regular price?
Answer:
5$ is discounted from the regular price.
Marny can type 20 words in 1/3 of an hour. How many words can she type per hour? *
Answer:
60 words
Step-by-step explanation:
20*/X3=60
Answer:
60 words
1/3 of an hour is 20 minutes
20 words every 20 minutes is 1 word per minute, 60 minutes is 60 words.
OR
20 = 1/3 (hour)
x3
60= 1 (hour)
Find the lowest common multiple of 15 and 12
Answer:
its 60
Step-by-step explanation:
PLZ HELP! Oliver is 8 feet above the surface of the water. There is a school of fish 10 feet below the surface. A ledge with some seashells is 18 feet below the surface, and even deeper, there is a shipwreck 32 feet below the surface. Answer parts a and b.
a. How many feet will Oliver have to travel to get to the seashells?
Oliver will have to travel ? feet down
Answer:
26 feet, Oliver will have to travel 26 feet deep.
Step-by-step explanation:
8 feet added to 18 feet will be your answer.
Answer:26 feet, Oliver will have to travel 26 feet deep.
Step-by-step explanation:Okay so if you draw a line graph going vertical and you number it 1-32 ( this is if you have to show work ) a is a 11 feet deeper and b is 23 feet deeper
How do I round up this number 86,088
Answer:
86,000
Step-by-step explanation:
You look at the 88 and 88 would round up to one, but since 1 is less than four the number becomes 86,000
Help me pleasee............
Answer: 30
Step-by-step explanation:
100-70=30
1.2.8 -0.9+y
Your answer