Answer:
50
Step-by-step explanation:
The graph shows the distance vs. time for a runner in a road race. Drag each number to the correct descriptor.
if I had made 450 cupcakes and sold 450 cupcakes for $0.85 how much money would I have made
Answer:
$382.5
Step-by-step explanation:
Graph the following equations.
X=1
Answer:
Vertical line that passes over 1 the x axis. (No y-intercept)
Step-by-step explanation:
What values of x and y satisfy the system of equations
{8x+9y=−3
{6x+7y=1
Answer:
• Let's first assign identifications to the equations given:
[tex]{ \rm{8x + 9y = {}^{ - }3 \: - - - \{equation \: (a) \} }} \\ { \rm{6x + 7y = 1 - - - \{equation \: (b) \}}} \\ [/tex]
• There are various methods to solve this system of equation, namely;
Graphical methodSubstitution methodElimination methodCalculus (Calculator synthetic method)1. Graphical method
→ You'll have to draw a graph, demacate it very well following the suitable scale.
→ Get values to plot from both equation (a) and equation (b).
→ Draw respective lines of each equation. The point of intersection of the lines is the answer of the values of x and y.
→ It'll be in coordinate format i.e; (x, y)
2. Substitution method
→ Lemme first consider equation (a)
[tex]{ \rm{8x + 9y = {}^{ - }3 }}[/tex]
• make x the subject of the equation (a):
[tex]{ \rm{8x = - 3 - 9y}} \\ \\ { \rm{x = \frac{ - 3}{8} - \frac{9}{8}y }} \: { \rm{- - - \{equation \: (c)}} \}[/tex]
→ Considering equation (b) next
[tex]{ \rm{6x + 7y = 1}}[/tex]
• substitute x in equation (b) with x in equation (c)
[tex]{ \rm{6( \frac{ - 3}{8} - \frac{9}{8}y ) + 7y = 1 }} \\ \\ { \rm{ - \frac{9}{4} - \frac{27}{4} y + 7y = 1}} \\ \\ { \rm{ \frac{1}{4} y = \frac{13}{4} }} \\ \\ { \underline{ \rm{ \: \: y = 13 \: \: }}}[/tex]
• then find x using equation (c)
[tex]{ \rm{x = \frac{ - 3}{8} - \frac{9}{8} y }} \\ \\ { \rm{x = \frac{ - 3}{8} - \frac{9}{8} (13)}} \\ \\ { \underline{ \rm{ \: \: x = - 15 \: \: }}}[/tex]
3. Elimination method:
→ Here, we have to align the equations so that if we use addition or subtraction operations we remain with one term giving us zero [ eliminated ]
→ Multiply equation (a) by 6 and multiply equation (b) by 8. In order to eliminate x
→ Then we subtract equation (a) with equation (b)
[tex]{ \underline{ \rm{ - \binom{6(8x + 9y = - 3)}{8(6x + 7y = 1)} }}} \\ { \rm{ 0x \: - 2y = - 26 }} \\ \\ { \rm{ - 2y = - 26}} \\ \\ { \underline{ \rm{ \: \: y = 13 \: \: }}}[/tex]
• find x using equation (c)
[tex]{ \rm{x = \frac{ - 3}{8} - \frac{9}{8} y}} \\ \\ { \underline{ \rm{ \: \: x = - 15 \: \: }}}[/tex]
4. Calculator synthetic method:
→ To use this method, you must have a scientific calculator.
→ If you have it, follow the steps below;
Go to mode (press it 3 times until you see "EQN" )Press 1 or any number below the "EQN". It'll display "Unknowns" with 2 and 3 below it. 2 → Two equations system. 3 → 3 equations system.According to our question, it is a two equations system, press 2It'll display a, b and c [ a is the coefficient of x, b is the coefficient of y, c is the constant]For a1 press 8 then press "equal sign", b1 press 9, then equal sign, c1 press -3 then equal sign.Follow the same procedure for a2, b2 and c2Automatically, It will display the answersAnswer: x = -15, y = 13
factor of expression of x2-64
Answer: (x+8)(x-8)
Step-by-step explanation:
i am going to assume that the 2 in your question is raised so that it reads x to the second power minus 64
(x+8)(x-8)
to check this, using foil it would be x^2 - 8x + 8x -64
How many you know that the expression is a perfect square trinomial pa help please
Multiply the roots of the first and third terms together. Compare to the middle terms with the result in step two. If the first and last terms are perfect squares, and the middle term's coefficient is twice the product of the square roots of the first and last terms, then the expression is a perfect square trinomial.
ya tengo la respuesta pero necesito escribir como ise el problema xf ayudenme.
What is an equivalent ratio of 5:9
Step-by-step explanation:
There is infinitely many ratios which are equivalent to 5:9. As we know always we can write divide as fraction, so . We can multiply nominator and denominator by the any number (but the same) and get another numbers but ratio will be the same, so equivalent.
For example
10:18,
15:27
Hope this helps.
Answer:
10:18
Step-by-step explanation:
Anything really just times both sides by the same number.
For example to get to 10:18 I multiplied both sides of 5:9 by 2.
If you were to multiply 5:9 by 3 (which would 15: 27) it would still be an equivalent to 5:9.
100 POINTS ON THE LINE PLEASE HELP!!! ITS DUE TODAY AND I WILL GIVE BRAINLIEST. NO LINKS OR I WILL BE SAD
The graph for Airplane A shows the speed at which it travels as a function of time. The graph for Airplane B shows the distance it travels as a function of time.
Use the drop-down menus to complete the statements below about the two airplanes.
PART A: Describe the speed for each airplane from 0 to t1.
Airplane A travels at a speed that is (increasing, decreasing, 0, constant, but not 0).
Airplane B travels at a speed that is (increasing, decreasing, 0, constant, but not 0).
Part B: Describe the speed for each airplane from t1 to t2.
Airplane A travels at a speed that is (increasing, decreasing, 0, constant, but not 0).
Airplane B travels at a speed that is (increasing, decreasing, 0, constant, but not 0).
Answer:
from 0 to t1
Airplane A travels at a speed that is increasing.
Airplane B travels at a speed that is constant but not 0.
from t1 to t2
Airplane A travels at a speed that is constant, but not 0
Airplane B travels at a speed that is 0.
The airplane A is travelling at a faster and faster rate from 0 to t₁, and airplane B moves at a steady but not zero speed from 0 to t₁
What is a line graph?A line graph is a graph made up of segments of straight lines that connect the depicted data points.
We have a graph for Airplane A shows the speed at which it travels as a function of time. The graph for Airplane B shows the distance it travels as a function of time.
From the graph A and B
From 0 to [tex]\rm t_1[/tex]
Airplane A is travelling at a faster and faster rate.
Airplane B moves at a steady but not zero speed.
From [tex]\rm t_1[/tex] to [tex]\rm t_2[/tex]
Airplane A moves at a constant speed, but not at zero.
Airplane B is travelling at a speed of 0.
Thus, the airplane A is travelling at a faster and faster rate from 0 to t₁, and airplane B moves at a steady but not zero speed from 0 to t₁
Learn more about the line chart here:
brainly.com/question/23680294
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which pair of lines are parraell?
a.) x-5y = 10; y=5x-2
b.) x+y = 0; y=x+7
c.) 2x-3y=9; 4y =6x-20
d.) 4x-8y=8; y=2x+2
e.) 9x-3y=12; y=3x-10
Answer:
A.
Step-by-step explanation:
carry on learning.. and start reading your modules so u can learn <3
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3.68 divided by 0.001=?
Answer:
the answer is 3,680
Step-by-step explanation:
what is the value of X
Answer:
58
Step-by-step explanation:
180-122=58
Find the area of a rectangular garden plot that measures 21 ft by 25.2 ft. Report with the correct number of significant digits.
The area of a shape is the amount of space it occupies.
The area of the garden is 529.2 square feet
The given parameters are:
Shape: Rectangle
Dimension: 21ft by 25.2ft
The area of a rectangle is:
[tex]\mathbf{Area = Length \times Width}[/tex]
So, we have:
[tex]\mathbf{Area = 21 \times 25.2}[/tex]
[tex]\mathbf{Area = 529.2}[/tex]
Hence, the area of the garden is 529.2 square feet
Read more about areas at:
https://brainly.com/question/16418397
Please help me with geometry!!
Measurement of angle 4 is 40°
List the set of all even numbers between 2 and 10, inclusive.
Answer:
2, 4, 6, 8, 10
Step-by-step explanation:
What is the logarithmic formula 10000= 625/8*2^t ?
9514 1404 393
Answer:
log(128) = t·log(2)
Step-by-step explanation:
You can take logarithms the way the formula is, or you can simplify it first.
As is
log(10000) = log(625) -log(8) +t·log(2)
__
Simplified
8·10000/625 = 2^t . . . . . multiply by 8/625
128 = 2^t
log(128) = t·log(2)
_____
Solution:
t = log(128)/log(2) = 7
If f(a) = 3a – a2, which of the following are not true statements?
Select all that apply.
f(4) = -4
f(3) = 0
f(-1) = 2
f(0) = 3
f(-5) = -40
What number is 12 more than 1/3 of itself?
Answer:
18
Step-by-step explanation:
Let the number be x.
1/3 of itself is 1/3 x or x/3.
x = x/3 + 12
3x/3 - x/3 = 12
2x/3 = 12
3/2 * 2x/3 = 3/2 * 12
x = 18
Answer: 18
The equation is formed as x - x/3 = 12. Then the solution of the equation will be 18.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The number is 12 more than 1/3 of itself.
Let the number be 'x'. Then the equation is written as,
x = x/3 + 12
Simplify the equation, then the value of 'x' will be calculated as,
x - x/3 = 12
3x - x = 36
2x = 36
x = 36/2
x = 18
The equation is formed as x - x/3 = 12. Then the solution of the equation will be 18.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
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Please help with this math problem! I am giving brainliest! :)
Answer: Heyy BFF The Answer is x= -8 or x=10
Step-by-step explanation: Stay Sliving ❤️
Find the value of x? LESSON Measuring Angles and Arcs Explain your reason
Answer:
50
Step-by-step explanation:
Sum of angles in a circle is 360,
145 + 165 + x = 360
310 + x = 360
x = 360 - 310
x = 50
Identify these triangles. On the first blank classify by the measure of their angles. On second line classify the number of congruent sides they have.
1. 60*
2. 30*
i not sure that this is right
How many times can 64 go into 28 I need the answer!!!
Answer:
64 can go into 28 0.4375 times. (less than 1 in a nutshell)
Step-by-step explanation:
(a) The perimeter of a rectangular field is 242 m.
If the length of the field is 68 m, what is its width?
Width of the field:
(b) The area of a rectangular painting is 5135 cm².
If the width of the painting is 65 cm, what is its length?
Length of the painting:
Answer:
fishy uhhh
Step-by-step explanation:
Hi!!!!! please anyone Can help this solve?
Answer:
The answer is 70%
Hope it helps <333
Step-by-step explanation:
I need help this please!
Answer:
I donot know
Step-by-step explanation:
l donot know you are question
If one pound of apples cost 50 cents about how much would one apple cost
Answer: It depends on the weight of an apple. If 1 apple = 0.50 lb, then 1 apple costs $0.25
Step-by-step explanation:
We need to know the weight of one apple. If one apple weighed 0.5 lb, on the average, then:
($0.50/lb)*(0.5 lb/apple) = $0.25/apple
2x + y 2 = 10; (3, 2) tell weather the ordered pair is a soultion to the eqaution.
Answer:
X=- 1
y=- 5
Step-by-step explanation:
X=- 1
y=- 5
All of the following are equivalent fractions except
8/40
3/15
6/30
5/20
Se dispone de 10 m de alambre para rodear un terreno de forma rectangular.a. ¿Cuánto mide el largo del terreno si de ancho tiene 1 m? ________________________________b. ¿Y si tiene 2 m de ancho? __________________________________
Five less than twice a number 581
Answer:
Step-by-step explanation:
Bro i dont know