Answer:
x = 9
x = 2
Step-by-step explanation:
Combine like terms to create an equivalent expression
-3.6 - 1.9t + 1.2 + 5.1t
Answer:
3.2t-2.4
Step-by-step explanation:
-3.6 - 1.9t + 1.2 + 5.1t
Combine like terms
-3.6+ 1.2 - 1.9t +5.1t
-2.4 + 3.2t
Answer: 3.2t-2.4
Step-by-step explanation:
First thing you need to do is do -1.9t+5.1t= 3.2t. Then you do -3.6+1.2= -1.2.
Then put all this together and you get 3.2t-1.2. (do not do 3.2t+-1.2 this incorrect because we left the subtracting sign
a boy is older than his sister by 3 years five years ago, the ratio of their ages was 4 : 3 find his present.
Answer:
five years ago -- boy- x+3 years
sister --- x
ratio-- 4:3 so difference is 3 years
4-3-- 1 1--3
five years ago --- sister :3*3--9 brother : 4*3--12
present : sister 14 years and brother 17 years old
Step-by-step explanation:
find an equation for the line that passes through the points (5, -4) and (1, -2)
Answer:
y=-3/2x-.5
Step-by-step explanation:
(5,-4) and (1,-2)
Step 1: find slope:
-4-2/5-1=-6/4=-3/2
y=mx+b
y=-3/2x+b
2.: Plug in point
(1,-2)
-2=-3/2*1+b
-2=-3/2+b
-2+3/2=b
b=-.5
There were 144 people in attendance at the school football game last Friday. This week there were 346 people in attendance at the school football game.What is the percent of change from last week to this week?Round your answer to the nearest whole number
Answer: 140%
Step-by-step explanation:
STEP 1: FIND THE CHANGE IN # OF PEOPLE:
initial # of people: 144
final # of people: 346
change in # of people = (final - initial)
change in # of people = (346 - 144)
change in # of people = 202
STEP 2: FIND THE % CHANGE
202/144 = x/100
(100)(202/144) = x
100(1.4) = x
140% = x
Answer:
140 %
Step-by-step explanation:
(346-144)/144 * 100
(202/144) * 100
ray cuts out a figure that has 4 equal sides and no right angles. what is the best name for the figure?
Answer:
Trapezoid
Step-by-step explanation:
None
Answer:
trapezoid
Step-by-step explanation:
f(x)=x/2-3 and g(x)=3²+x-6 find (f+g)(x)
Answer: X=3
Step-by-step explanation:
Extending Patterns What is the value of y when x = 0? When x = 0, y = .
HURRY PLS
Answer: 0
Step-by-step explanation: it would only be a different number if there’s an equation like y=2x 3
0000000000000000000000
Step-by-step explanation:
A cylinder has a circular base with diameter of 20 inches. What is the volume of this cylinder with the height of 11 inches?
HELP PLEASE
Answer:
3455.75
Step-by-step explanation:
Which equation is represented by the graph below?
Answer:
Option 3 y=ex-3 hoping this helps
Solve the simultaneous equations
2x - 3y = 18
5x + 9y = -10
Answer:
2x - 3y = 18 (1)
5x + 9y = -10 (2)
<=>
Multiply both sides of (1) by 5, and multiply both sides of (2) by 2, then:
10x - 15y = 90
10x + 18y = -20
Subtract (2) to (1):
=> 33y = -110 => y = -110/33
Substitute y back into (1):
=> 2*x - 3*(-110/33) = 18
=> 2*x + 10 = 18
=> 2*x = 8
=> x = 4
=> Solution: x = 4, y = -110/33
Hope this helps!
:)
Answer: x=4 y= -10/3
Step-by-step explanation:
Look at the attachment. It should explain.
On a coordinate plane, trapezoid A B C D has points (negative 3, negative 2), (negative 1, 2), (3, 2), and (5, negative 2). Trapezoid ABCD is graphed in a coordinate plane. What is the area of the trapezoid? 16 square units 24 square units 32 square units 48 square units
Answer:
Correct option: second one -> 24 square units
Step-by-step explanation:
First we need to find the length of each side of the trapezoid, and we do that finding the distance between points:
AB = sqrt( (-1 - (-3))^2 + (2 - (-2))^2) = 4.4721
BC = sqrt( (3 - (-1))^2 + (2 - 2)^2) = 4
CD = sqrt( (5 - 3)^2 + (-2 - 2)^2) = 4.4721
DA = sqrt( (-3 - 5)^2 + (-2 - (-2))^2) = 8
The points B and C have the same y-coordinate, and the points D and A also have the same y-coordinate, so they are the bases of the trapezoid.
The height of the trapezoid is the difference in y-coordinate of points B and A:
height = 2 - (-2) = 4
So the area of the trapezoid is:
Area = (BC + DA) * 4 / 2 = (4 + 8) * 2 = 24 square units
Correct option: second one
Answer:
Its B
Step-by-step explanation:
7. How would you solve this equation: 9x = 153? *
Multiply
Divide
Add
Subtract
You would need to DIVIDE by 9
Answer:
x=17
Step-by-step explanation:
divide both sides of the equation by 9
Solve the equation for y: -8x + 4y = 20
es
A)
y = 2x - 5
B)
y = 2x + 5
)
y= {x+5
yox=20
D)
Answer:
Step-by-step explanation:
4y = 20 + 8x
y = 5 + 2x
Answer:
Option B
Step-by-step explanation:
-8x + 4y = 20
[tex]-8x+8x+4y=20+8x \leftarrow \text {Addition Property of Equality.}\\4y=20+8x\\\\\frac{4y}{4}=\frac{20+8x}{4} \leftarrow \text {Division Property of Equality.}\\y=5+2x\\\boxed {y=2x+5}[/tex]
Option B should be the correct answer.
Devon started the week with $50 in his checking account. On Monday he took $20 out of the
account. On Tuesday, the balance of Devon's account changed to $0. Which value best
represents the change to his account balance on Tuesday?
Answer:
see below
Step-by-step explanation:
Starting with 50
Took out 20
50-20 = 30
Then the balance was 0
We need to subtract 30 to get to get to 0
30-30 = 0
Taking out 30
Withdrawing 30
Spending 30
All are ways of indicating taking out 30 dollars
Answer:
On Tuesday, Devon took 30 dollars out of his checking account.
Step-by-step explanation:
Starting with: $50 - Ending with $0
Monday: took out $20 or in other words -20 50-20=30
Tuesday: undetermined, but since that was his last day, it would correspond with $0 so, he must've took out $30 and then ended up with none in the end.
30-30=0
So, he took 30 dollars out on tuesday.
Mr. Wong cuts a coil of wire into two pieces in the ratio of 3:4. The length of the longer piece is 32 centimeters. What is the total length of the coil of wire?
Answer:
56 cm
Step-by-step explanation:
The ratio of the lengths of the pieces is 3:4.
The longer piece is 32 cm.
We set up a proportion to find the length of the smaller piece.
Let the length of the smaller piece be x.
3 is to 4 as x is to 32
3/4 = x/32
4x = 3 * 32
4x = 96
x = 24
The smaller piece is 24 cm.
24 cm + 32 cm = 56 cm
Answer: 56 centimeters long.
Step-by-step explanation:
You can find the other value in a ratio by dividing the value given by its corresponding value in the ratio, then multiplying the quotient by the other value in the ratio.
32 is the longer piece, and 4 is longer than 3.
32 / 4 = 8.
8 * 3 = 24
The shorter piece is 24 centimeters long.
The total length of the coil is 24 + 32, or 56 centimeters long.
If a vertical plane slices a cylinder perpendicular to both its bases, what cross section is formed?
rectangle
square
circle
triangle
Which word or words best complete the sentence? Two intersecting lines are _____ in the same plane.
Answer:
Two intersecting lines are co-planar in the same plane.
Hope this helps!
:)
Answer:
the answer is always
Step-by-step explanation:
I just took the quiz and got it right.
What kind of Polynomial is this?
8b
A. Binomial
B. Monomial
C. Trinomial
What kind of polynomial is this?
2a^2 + 3b + c
A. Trinomial
B. Monomial
C. Binomial
pls help i give u brainliest and 5 stars
Answer:
20+20+6+6+30+30=112cm^2
Step-by-step explanation:
Answer:
112 meters squared
Step-by-step explanation:
Surface Area = 2×(3×2 + 3×10 + 2×10) = 112 meters squared
Please answer correctly !!!! Will mark BRAINLIEST !!!!!!!
Answer:
g(n) = [tex]\frac{11+5n}{3}[/tex]
Step-by-step explanation:
Given
3m - 5n = 11
Rearrange making m the subject
Add 5n to both sides
3m = 11 + 5n ( divide both sides by 3 )
m = [tex]\frac{11+5n}{3}[/tex] , thus
m = g(n) = [tex]\frac{11+5n}{3}[/tex]
What is the slope of the line of best-fit in the scatterplot below?
Answer:
Option C
Step-by-step explanation:
Using the slope formula and the points in the picture: (3,12) (6,19)
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\frac{19-12}{6-3}=\frac{7}{3}[/tex]
The slope of the line is 7/3.
Option C should be the correct answer.
Answer:
Your correct answer is option C. 7/3
Step-by-step explanation:
Help!!!
Explain to Noah Clue why the following logarithmic properties are true. Be sure to demonstrate with examples and explain it well enough so that Noah could relay the information to Atta Loss with authority.
log (a•b) = log (a) + log (b)
b
log (a ) = b•log (a)
what is the greatest common factor 30y^8 + 10y^4
Answer: 10y^4
Since it can go 10y^4(3y^4+1)
Step-by-step explanation:
Answer:
10y^4
Step-by-step explanation:
in order to solve you would have to find the prime factors of each term i order to find the GCF.
hope this helped ;)
please answer asapppp!!! i will give brainliest to whoever helps and does it 100% please i need help.
Consider that the roots of a cubic equation with integral coefficients are 2, -1, and 4. Which choice is the cubic equation?
es )
A
x3 + 5x2 + 2x + 8 = 0
B)
x3 - 5x² + 2x + 8 =0
C)
x3 - 5x2 + 2x - 8 = 0
D)
x3 - 5x? –2x - 8 = 0
If sin a-b =1/2 and cos a+b =1/2 Find a and b
Answer:
[tex]a = \frac{1}{2} [/tex]
[tex]b = 0[/tex]
Step-by-step explanation:
[tex]a - b = \frac{1}{2} \\ a + b = \frac{1}{2} \\ \\ a - b + a + b = \frac{1}{2} + \frac{1}{2} \\ a + a = \frac{2}{2} \\ 2a = 1 \\ \frac{2a}{2} = \frac{1}{2} \\ a = \frac{1}{2} [/tex]
[tex]a + b = \frac{1}{2} \\ \frac{1}{2} + b = \frac{1}{2} \\ b = \frac{1}{2} - \frac{1}{2} \\ b = 0[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!!
-(8x) . 3x^2 please help
Answer:
− 24 x 3
This is if you multiply the expressions
What is the sum?
-5 + (20) =
Answer:
15
Step-by-step explanation:
-5+20=20-5
15
find the value of JW given that JW=6x+2 and JB=10x+1
The value of JW is 14 units.
What is a triangle?A triangle is a polygon with 3 sides. The area of a triangle with base b and height h is given by A = (1/2)bh.
Given that, JB is the median of the triangle and JW = 6x + 2 and JB = 10x + 1.
The distance between the centroid and a vertex of a triangle is 2/3 of the length of the median, therefore, it follows:
JW = (2/3)JB
Substitute the values:
6x + 2 = (2/3)(10x + 1)
18x + 6 = 20x + 2
2x = 4
x = 2
Substitute x = 2 into the expression for JW:
JW = 6(2) + 2
JW = 14
Hence, the value of JW is 14 units.
Learn more about triangles here:
https://brainly.com/question/2773823
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If the soccer team paid $5 for 15 hamburger, then what is the price of one hamburger?
Answer:
$0.33 per hamburger
Step-by-step explanation:
You know that the team paid $5 for 15 hamburgers, then you need to divide the cost of all the hamburgers, ($5) by the number of hamburgers. 5/15 = 0.33 repeating. This means that they paid $0.33 per hamburger.
Answer:The answer is 80
5, 10, 15, 20, 25, 30, 35,40, 45, 50, 55, 60, 65, 70, 75, 80.