Answer:
98
Step-by-step explanation:
Step-by-step explanation:
-75x+y=210
-4(-5x+6) in distributive property
Answer:
20x - 24
Step-by-step explanation:
-4(-5x + 6)
20x - 24
is -2 and two fourths a rational number
Answer: Yes
Step-by-step explanation: I looked it up
1) 30% of the 210 7th graders at CBJ said they were planning to leave town for
Spring Break. How many students are NOT planning on leaving town? *
Answer:
30% of 210 is 63
Step-by-step explanation:
Answer:
209.7
Step-by-step explanation: i dont know what ur really asking for which i understand all u have to do simplify the expressions
A missile is launched along a path determined by the function below, where f(x) is the height of the missile in feet x seconds after the launch.
A plane is flying nearby at a height of 650 feet.
Is the plane in danger of being hit by the missile?
Why or why not?
f(x)=-2x^2+72x
Answer:
The plane will be fine.
Step-by-step explanation:
[tex]f(x) =-2x^{2}+72x\\650=-2x^{2}+72x\\2x^{2}-72x+650=0\\[/tex]
There are no real solutions.
State which property or relationship is demonstrated in the following examples 7+(9+6)=(7+9)+6
The equation P=6s represents the perimeter P of a regular hexagon with side length s. What is the
perimeter of a regular hexagon with side length 2 mm?
The perimeter is
mm.
Answer:
The perimeter is 12mm
Step-by-step explanation:
Plug 2 for s in P=6s so 6*2=12
A 12% brine solution was mixed with a 16% brine solution to produce a 15% brine solution. How much of the 12% solution and how much of the 16% solution were used to produce 40 L of the 15% solution?
Answer:
10 liters
Step-by-step explanation:
x=12% solution, y=16% solution
x+y=40
0.12x+0.16y=6 . (12x+16x=600)
-12x-12y=-480
12x+16x=600
+ -12x-12y=-480
-------------------------------
4x=120
x=30
12% solution= 30 liters
16% solution= 10 liters
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
10L of the 12% of solutions and 30L of the 16% of solutions were used to produce 40L of the 15% of solutions.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
We have,
Let 12% brine solution be x.
Let 16% brine solutions be y.
12% brine solution was mixed with a 16% brine solution to produce 40L of the 15% solution.
This can be written as,
x + y = 40 ______(1)
0.12x + 0.16y = 0.15 x 40
0.12x + 0.16y = 6 _______(2)
We will solve for x and y.
From (1) we get,
x + y = 40
x = 40 - y _____(3)
Putting ( 3) in (2)
0.12 (40 - y) + 0.16y = 6
4.8 - 0.12y + 0.16y = 6
4.8 + 0.04y = 6
0.04y = 6 - 4.8
0.04y = 1.2
y = 1.2/0.04
y = 30
Putting in (3) we get,
x = 40 - 30 = 10
Thus,
10L of the 12% of solutions and 30L of the 16% of solutions were used to produce 40L of the 15% of solutions.
Learn more about equations here:
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Write in expanded form the 3-digit number that has 5 tens, m units, and 2 more hundreds than units.
Step-by-step explanation:
We know that the number written as sum of the place-values of its digits is called the expanded form of a number.
We know that the number written as sum of the place-values of its digits is called the expanded form of a number.Standard Form
We know that the number written as sum of the place-values of its digits is called the expanded form of a number.Standard FormExpanded Form
We know that the number written as sum of the place-values of its digits is called the expanded form of a number.Standard FormExpanded Form20,37,81,405
We know that the number written as sum of the place-values of its digits is called the expanded form of a number.Standard FormExpanded Form20,37,81,405=
We know that the number written as sum of the place-values of its digits is called the expanded form of a number.Standard FormExpanded Form20,37,81,405=20,00,00,000 + 0 + 30,00,000 + 7,00,000 + 80,000 + 1,000 + 400 + 0 + 5
Answer:
2x100+mx100+5x10+mx1
Step-by-step explanation:
This is correct. TRUST ME!! pls if wrong.
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If you do I will give you Ten RaMeN NoOdLe bOwLs at Ichiraku Ramen
Its the Best In The Hidden Leaf Village! Believe It!
(Answer All.. be Fast I might eat the noodles)
Answer:
GIVE ME MY RAMEN
Step-by-step explanation:
3.
add like terms
30 + 7k = 100
100-30 = 70
70 divided by 7k = 10
k = 10
4. add the z's together
2z - 6 -2 = -10
+ 6 + 2
-10 will be -2 now since we dragged the -6 and -2 to the other side
2z = -2
z = -1
5. 3.2x - 1.7x = 1.5x
1.5x + 5.5 = 10
10 would be 4.5 since we dragged 5.5 to the other side so it would be 10 - 5.5
3.2x = 5.5
x = 1.71875
6.
3/4x - 1/4x = 2/4x
14 - 3 = 11
2/4x = 11
x = 22
identify 2 pairs of angles of the given type.
plsss HELP!!!!!!
Answer:
It is (2,4) Plz mark brainliest
Step-by-step explanation:
David's Bikes rents bikes for $11 plus $5 per hour. Mary paid $51 to rent a bike. For how many hours did she rent the bike?
WHOEVER GETS IT RIGHT ILL GIVE YOU THE CROWN!Help ASAP gotta turn it in soon
A 12 fl. oz. bottle of shampoo costs $1.08 at Costco. A 20 fl. oz. Bottle of the same shampoo costs $2.20 at Wal-Mart. Which store has the better buy?
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Answer:
Costco
Step-by-step explanation:
2 bottles at Costco give you 24 oz of shampoo for the price of $2.08, which is less than Wal-Mart's price of $2.20 for fewer ounces.
Costco has the better buy.
Luke puts $500 into a savings account that earns 6% simple interest each year. How much money will be in the account after 3 years
Answer:
= $90
Step-by-step explanation:
I = prt
I = 500 x 0.06 x 3
I = $90
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Answer:
$590
Step-by-step explanation:
The account balance is given by ...
A = P(1 +rt) . . . . simple interest rate r for t years
A = $500(1 +0.06×3) = $590
There will be $590 in the account after 3 years.
WILL GIVE BRAINLIEST. Point C is at (-3, -2). After being reflected across the x-axis, what are the coordinates of Point C? (CORRECT IT)
“The new coordinates are (3, -2).”
State the error.
Write the rule.
What is the correct answer?
Answer:
(3,2)
Step-by-step explanation: Because -3 and -2 are negative so when you reflect them the opposite of a negative is positive. So the answer is (3,2) HOPE THAT HELPS.
m(n+r)=s solve for n. Show two methods.
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Answer:
n = (s/m) -r n = (s -mr)/mStep-by-step explanation:
1. Undo the operations done to n, in reverse order. Here, n has r added and the sum is multiplied by m. First we divide by m, then we subtract r.
m(n+r) = s . . . given
n +r = s/m . . . divide by m
n = (s/m) -r . . . subtract r
__
2. Eliminate the parentheses, then proceed as above. Subtract the added term, then divide by the coefficient of n.
m(n+r) = s
mn +mr = s . . . eliminate parentheses
mn = s -mr . . . subtract the added term
n = (s -mr)/m . . . divide by the coefficient of n
A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of $26. Option B is a commission rate of 10% on weekly sales. How much does she need to sell this week to earn the same amount with the two options?
Step-by-step explanation:
12,500.
Step-by-step explanation:
We have been given that a salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $25. Option B is a commission rate of 8% on weekly sales.
First of all we will find amount earned by salesperson with option A.
\text{Option A earnings}=40\times 25=1000Option A earnings=40×25=1000
The salespersons earns $1000 through option A.
Let x be the amount of weekly sales.
8% of x should be equal to 1000 for salesman to earn the same amount with the two options.
\frac{8}{100}x=1000
100
8
x=1000
0.08 x=10000.08x=1000
x=\frac{1000}{0.08}x=
0.08
1000
x=12500x=12500
Therefore, the salesman needs to make a weekly sales of $12,500 to earn the same amount with two options.
Need help.
plz show steps
Answer:
-4
Step-by-step explanation:
0.847 times 3.54
What does it equal
Answer: 2.99838 or rounding to nearest whole number it is 3
Step-by-step explanation:
i’m so stressed out over this. please help me solve these
Answer:
8x + 406y - 21-6m - 186 - 6z-5x - 1-x - 4ab - 6b7a(3b - 2c + 4)4x + 1[tex]\frac{x}{6} - 4[/tex] 1 - 4wx - 42k - 584x + 246 - 37m25v + 16c - 395p + 42-wx + 3I hope this helps!
If k(x) = 2x² -3.Vx, then k(9) is
Answer:
159
Step-by-step explanation:
k (9) = (2 * [tex]9^{2}[/tex]) - 3
= (2 * 81) - 3
= 162 - 3
= 159
If I need 5 eggs to make 30 biscuits, how many eggs will I need to make 90 biscuits?
Answer:
15!!!!is the answer.....
What’s the 84th term of the arithmetic sequence -5, 15, 35
Answer:
a₈₄ = 1655Step-by-step explanation:
15-(-5) = 20 and 35-15=20 so d=20
[tex]a_n=a_1+d(n-1)\\\\a_1=-5\\d=20\\\\a_{84}=-5+20(84-1)=-5+20\cdot83=-5+1660=1655[/tex]
Find the value of 5^4 * 5 ^3 *
how much of earth's surface is covered by water,including both salt and fresh water?
Answer:
About 71% of Earth's surface is covered in water.
Step-by-step explanation:
About 97% of Earth's water is salt water.
About 3% of Earth's water is fresh water.
What is the measurement of angle 1 plz help me !
Answer:
ANGLE 1 = 40°
Step-by-step explanation:
angle 1 = angle 2 ------(alternate interior angles)
2x + 20 = 3x + 10
20 - 10 = 3x - 2x
x = 10.
Angle 1 = 2x + 20 = 2(10) + 20 = 20 + 20 = 40°.
HOPE IT HELPS!!!
Here is a system of equations:
-7x + 3y = -65
-7x + 10y = -135
Write an equation that results from subtracting the two equations.
Answer:
y = -10
Step-by-step explanation:
(-7x+3y) - (-7x +10y) =-65 -(-135)
-7x + 3y + 7x -10y = 70
-7y = 70
y = -10
The equation that results from subtracting - 7x + 3y = - 65 and
- 7x + 10y = - 135 is 7y = - 70.
What are simultaneous equations?We know two simultaneous equations have a unique solution when they intersect at a point,
when they are parallel they have no solution and when they are coinciding they have an infinite no. of solutions.
Given, a system of equations - 7x + 3y = - 65 and - 7x + 10y = - 135.
Subtracting the first equation from the second we get,
- 7x + 10y = - 135
(-) - 7x + 3y = - 65
_________________
Negative sign gets distributed
- 7x + 10y = - 135
+ 7x - 3y = + 65
_________________
7y = - 70
y = - 70/7
y = - 10.
So, the value of x is -7x +10×(-10) = - 135.
- 7x - 100 = - 135.
- 7x = - 135 + 100.
- 7x = - 35.
x = 7.
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(-3/2)x-9=-27 solve for x
Answer:
x=12
Step-by-step explanation:
-3/2x-9=-27
-3/2x=-18
2/-3*-3/2x=-18*2/-3
x=12
Anu has 9 problems to solve for his
math homework. He has solved 2/3
of the problems already. How
many of his problems has he
solved?
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Answer:
6
Step-by-step explanation:
2/3 of 9 is ...
(2/3)×9 = 18/3 = 6
Anu has solved 6 of his problems.
PLEASE HELP! Please answer properly. Also don't just multiply the numbers together. I'm supposed to show how I factored it then solved it. Please explain. Can be short explanation.
Answer:
999975
Step-by-step explanation:
that`s what i got