Answer:
if -5n+7<57, then n>-10.
if 6n+2<8, then n<1.
Step-by-step explanation:
-5n+7<57
1. subtract 7 from both sides:
-5n+7 -7< 57 -7
-5n<50
2. divide both sides by -5 (remember to flip the sign whenever you divide by a negative number):
-5n ÷-5<50 ÷-5
n>-10
6n+2<8
1. subtract 2 from both sides:
6n+2 -2<8 -2
6n<6
2. divide both sides by 6:
6n ÷6<6 ÷6
n<1
use the angle diagram to solve for x and y. state the angle relationships used to write your equations. show all work when solving.
Answer:
X=20
Y=85
Step-by-step explanation:
6x-25=4x+15
2x=40
x=20
6(20)-25
120-25
95
360-190
170
2y=170
y=85
Find the x and y intercept of the following equation 4x-10y=20
For the given linear equation we have:
y-intercept: y = -2x-intercept: x = 5.How to find the intercepts for the linear equation?Here we have a linear equation:
4x -10y = 20
First, let's find the y-intercept, this is the point with x = 0, so evaluating in that we get:
4*0 - 10y = 20
-10y = 20
y = 20/-10
y = -2
The x-intercept is what we get by evaluating in y = 0.
4x - 10*0 = 20
x = 20/4
x = 5
Learn more about linear equations:
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10x + 9 – 6x = -19 what does x equal in this equasion
Answer: x = -7
.........................
Answer:
x = -7
Step-by-step explanation:
10x +9 -6x = -19
10x-6x = -19 -6
4x = -28
x = -7
What’s the equation of the line?
Answer:
x = -1/3+3
slope = -1/3
Step-by-step explanation:
If f(x)=3x+2, what is f(5)
A. 1
B. 17
C. 13
D. 10
2.6 A printer can print 12 color pages in 3 minutes. How many color pages can the printer print in 9 minutes?
Answer:
36
Step-by-step explanation:
12 times 3 = 36
another word for multiplicative inverse
Answer:
Reciprocal
Step-by-step explanation:
That's it right there
PLEASE HELP!!
For what value of x does 2x-4/x+7 = 1/3?
A. 33/5
B. 2
C. 19/5
D. -7
Answer:
A i think
Step-by-step explanation:
1 Multiply both sides by 3x3x.
6{x}^{2}-12+21x=x6x
2
−12+21x=x
2 Move all terms to one side.
6{x}^{2}-12+21x-x=06x
2
−12+21x−x=0
3 Simplify 6{x}^{2}-12+21x-x6x
2
−12+21x−x to 6{x}^{2}-12+20x6x
2
−12+20x.
6{x}^{2}-12+20x=06x
2
−12+20x=0
4 Use the Quadratic Formula.
x=\frac{-20+4\sqrt{43}}{12},\frac{-20-4\sqrt{43}}{12}x=
12
−20+4√
43
,
12
−20−4√
43
5 Simplify solutions.
x=-\frac{5-\sqrt{43}}{3},-\frac{5+\sqrt{43}}{3}x=−
3
5−√
43
,−
3
5+√
43
Write an expression to represent the sum of three times the square of a number and .
In your expression, what is the value of the constant?
Answer:
3x^2-7
-7 is the constant
3 is the coefficient
x is the variable
Step-by-step explanation:
(3x^2)+(-7)
f(3) = 5x + 5, find f(-4)
Answer:
-15
Step-by-step explanation:
substitute -4 for x:
5(-4)+5
-20+5
= -15
What is the GCF OR 24 and 34
Answer:
Greatest Common Factor of 24 and 34 Greatest common factor (GCF) of 24 and 34 is 2.
Step-by-step explanation:
Graph please help x and y values
Answer:
(-5, 1)
Step-by-step explanation:
Find the slope of the following line containing the following points (4,5) and (11,33)
Can anyone help me out with this one?
Answer:
HEy, dont every do tht
Step-by-step explanation:
Answer:
The value of X is 72
Step-by-step explanation:
corresponding angles
What single transformation was applied to triangle A
to get triangle B?
Answer: translation
Answer:
Translation
Step-by-step explanation:
Solve 8 (a+4) + 4a = 36 + 8a
Answer:
Hi there
Your answer is
a=1
Step-by-step explanation:
8(a+4)+4a=36+8a
8a+32 + 4a = 36+8a
12a+32=36+8a
-8a
4a+32=36
-32
4a=4
/4
a=1
Austin is building a miniature replica of the empire state building. the actual empire state building is 1,423 feet tall and 6,000 feet wide. if Astin's replica has a width of 60 centimeters, what is the hight of his empire state building replica rounded to the nearest centimeter?
60/6000 = x/1423
100/1 = 1423/x
100x = 1423
x = 14.23 --> About 14 cm
HELP ME WITH THIS IT IS REALLY HARD
Answer:
-3. 1/8
Step-by-step explanation: it’s negative three and 1/8
A chemistry teacher has a flask of a 45% acidic solution and another bottle of 28% acidic solution.
How much would he need to use of each container to arrive at a final solution that is 100 mL of a 33.95% solution?
Answer:
35 ml of 28% acidic solution and 65ml of 45% acidic solution is to be used
Step-by-step explanation:
Let the number of ml of the 45% solution be x while that of the 28% solution be y
Mathematically;
x + y = 100 ••••••(i)
Furthermore
45% of x + 28% of y = 33.95% of 100
0.45x + 0.28y = 33.95 ••••••(ii)
From i,
x = 100-y
put this into ii
0.45(100-y) + 0.28y = 33.95
45 - 0.45y + 0.28y = 33.95
45 - 33.95 = 0.45y - 0.28y
11.05 = 0.17y
y = 11.05/0.17
y = 65
Recall
x = 100 - y
x = 100 - 65
x = 35 ml
Interpret the meaning of y-intercept in this context
Answer:
Its 8
Step-by-step explanation:
This is the highest peak
Pls help me I don’t know this :(
Answer:
B 25% I worked this out, tell me if it helped and plz mark Brainliest ^w^
solve the equation 2y + 5x = 4 for y
pls help
Answer:
-3
I think hope this helps.
Answer:
y = 2- [tex]\frac{5x}{2}[/tex]
Step-by-step explanation:
Which graph shows the result of dilating this figure by a factor of 4 about the origin?
B is the answer just took the test
(11x-3) (4x+39) find x
Answer:
x=6
Step-by-step explanation:
what is -18+-90 i know im just answering it for you
Answer:
-18+(-90) = -18-90 = -108
Answer:-108
Step-by-step explanation:
Use the Distance Formula to find the distance between (-1,4) and (4,1)
Answer:
[tex]\sqrt{34}[/tex] or 5.831
Step-by-step explanation:
Plug the coordinates into the formula and there's your answer.
Which transformation maps the pre-image to the
image?
O dilation
O translation
O reflection
O rotation
Nick buys 6 cupcakes and a bottle of water for $2. If he spent $20 in total how much was each cupcake
Answer:
3 dollars
Step-by-step explanation:
20 dollars is his total
$20-2 dollar water bottle=18
18 dollars divided by 6 cupcakes equals 3 dollars for each cupcake.
find the 88th term of the arithmetic sequence 26,28,30
Answer:
It's counting by 2's so count by 2's 88 more times. Not sure if that is completely right. Also there is probably an equation that you can use to find the answer, but i don't remember it.
Step-by-step explanation:
Answer:
200
add by 2's 88 times
An automobile manufacturer is preparing a shipment of cars and trucks on a cargo ship that can carry 21,600 Tons. The cars weigh 3.6 tons each and the trucks weigh 7.5 tons each. For a different shipment, cars are loaded first, and then trucks are loaded afterwards. Write an equation you could enter into a calculator or a spreadsheet tool to find the number of trucks that can be shipped if the number of cars is known. Let x=number of cars (input) and Let y=number of trucks (output)
Answer:
Number of trucks (y) that can be shipped if the number of cars (x) is known[tex]=\frac{21,600-3.6x}{7.5}[/tex]
Step-by-step explanation:
A cargo ship can carry 21,600 Tons.
Let x denotes number of cars and y denotes number of trucks.
The cars weigh 3.6 tons each and the trucks weigh 7.5 tons each.
Therefore,
[tex]3.6x+7.5y=21,600[/tex]
Now write y in terms of x.
[tex]7.5y=21,600-3.6x\\y=\frac{21,600-3.6x}{7.5}[/tex]
Number of trucks (y) that can be shipped if the number of cars (x) is known[tex]=\frac{21,600-3.6x}{7.5}[/tex]