Answer:
y = -2x + 7
Step-by-step explanation:
you can use y–y1=m(x–x1) but I just plug straight into y=mx+b and solve from their (much simpler)so plugging the numbers in y=mx+b it will become 1 = -2(3) + bsimplify so 1 = -6 +b or b – 6 = 1add six to both sides to get b=7slope or m is -2 and b or y-intercept is 7y= -2x+7Time taken by three students to cycle a distance of 5500 m is, A took
8 min and 20 seconds, whereas B took 5 seconds more than C, who took
3 seconds less than A. Find their speed and arrange students
in the increasing order of their speed.
(Speed
Distance]
A,B,C
BAC
C, AB
C, B, A
Answer:
C,A,B
20 seconds is 1/3 of a minute
A=8 1/3
B= C + 5
B= 5 1/3 + 5
B= 10 1/3
C=A-3
C=8 1/3-3
C=5 1/3
This needs to be answered for a number line
-9=4x+3
Answer:
X=-3
Step-by-step explanation:
To find the unknown variable: X, we need to see how mich 4x equals to. to do this, we must first subtract 3 from both sides of the equation. The left side will be left with -12, and the right side will be left with 4x. This means:
-12=4x So...
x=-3
To check if this is right, you can subsitute this back into the equation.
4 times -3= -12. -12=3=-9
how much money is six dimes worth???
Answer: 60 cents
Step-by-step explanation: 1 Dime= 10 cents; 10x6= 60.
Answer: 60 cents.
Step-by-step explanation:
One dime is worth 10 cents. Therefore, if you have six of them it's simple repeated addition
10+10+10+10+10+10
or simple multiplication.
10(6)
Which are both the same exact thing.
So six dimes are 60 cents. Hope that helps!!
pleaseeeee helpppppp
Answer:
(DOWN VOTE)
Step-by-step explanation:
wait what is it?!
Tracy wants to make 4 curtains. Each requires 54 yards of fabric. How
much fabric does she need?
Pls helpppp!!!!
Answer:
21 yards
Step-by-step explanation:
4*21/4
84/4
21
Answer:
21yards multiplication
Step-by-step explanation:
Given parameters:
Number of curtains = 4
Amount of fabric needed = [tex]5\frac{1}{4}[/tex]yards
Unknown:
How much of fabric is needed = ?
Solution:
A curtain requires [tex]5\frac{1}{4}[/tex]yards = [tex]\frac{21}{4}[/tex]yards
Now to make 4 curtains, we would need [tex]\frac{21}{4}[/tex] x 4 = 21yards.
4 ( - 2 - 4 x) = 26 + 6 x
Answer:
X = -1.54 repeating
Step-by-step explanation:
John's wants to open a bank account with $100. He will have to pay a service fee of $5 per month to keep it open. Let y represent the amount of money in his account and x represent the number of months.
Answer:
y+5x
Step-by-step explanation:
Y is the start so you have to add that to the amount of money total for all of the months and to get the total of the months you have to multiply 5 by the number of months he had the account open
What is the value of d? d = 55
d = 75
d = 125
d = 155
Answer:
If you're talking about the parallel line then D=125
~~~Hope this helps~~~ :)
Answer:
125
Step-by-step explanation:
This diagram of a rectangular city park was drawn using a scale of 1 centimeter to 20 meters
(In the diagram shown, assume each square on the grid is 1 centimeter in length.)
What is the area, in square meters, of the actual park?
What is the scale factor?
Answer:
Scale factor for the drawing from actual park = [tex]\frac{1}{20}[/tex]
Area of the actual park = 1200 cm²
Step-by-step explanation:
Length of the rectangular city park = 5 cm
Width of the rectangular park = 6 cm
Using scale factor 1 cm = 20 meters
Scale factor = [tex]\frac{\text{length of the park in drawing}}{\text{Actual length of park}}=\frac{1}{20}[/tex]
[tex]\frac{5}{\text{Actual length of park}}=\frac{1}{20}[/tex]
Actual length = 5 × 20 = 100 meters
Actual width = 6 × 20 = 120 meters
Area of the rectangular park = length × width
= 100 × 120
= 1200 square meters
Therefore, Scale factor from actual length to the length in drawing = 1 : 20
Area of the rectangular park = 1200 square feet
Lines p and m are intersected by transversalt and p // m. Select all the angles that are congruent to Angle 6.
Angle 1
Angle 2
Angle 3
Angle 4
Angle 7
Angle 8
Parallel, Perpendicular
Or Neither
Y = 3x + 1
6x - 2y = 10
T-shirts cost $4.50 each and shorts cost $6.You have enough money to buy exactly 12 t-shirts and 9 pairs of shorts
How much are you going to spend on shorts?
Answer:
$54
Step-by-step explanation:
PLEASE HURRY I HAVE 5 MINUTES
Answer:
x>1 :)))))))))
Step-by-step explanation:
-26+13x>-13x
26x>26
x>1
Answer:
C. x > 1
plz mark as brainliest :DD
what is the solution to this equation?
A. x=-4
B. x= 100
C. x= 4
D. x=-100
Answer:
D. x = - 100Step-by-step explanation:
[tex]\bold{\dfrac x5=-20}\\{}\ \ ^{\cdot5\qquad\cdot5}\\\bold{\dfrac x5\cdot\dfrac51=-20\cdot5}\\\\\bold{x=-100}[/tex]
Here is one of the other ones.
write 36/9 in simplest form
Answer:
4
Step-by-step explanation:
36/9=4
there are 4 nines in 36
. Mr. Lorenzo gave his 2 sons $50 to buy a cooler. The total cost for the cooler is $44. Mr. Lorenzo told his sons that they could each have an equal share of the change they receive. The equation shown can be used to determine s, the amount of money each son should receive in dollars. S = (50 - 44) 2 What amount of money is represented by s ?
Answer:
S=$3Step-by-step explanation:
Given that the cost of cooler is $44
money given to the two sons $50
let S represent the amount the two son will have to share equally
the change is 50-44=6
=$6
Then s=6/2=$3
applying with the expression directly we have
S = (50 - 44)/2
S = (6)/2
S=$3
I need help!!! :))))
Answer:
c
Step-by-step explanation:
Answer:
420-20w = 240
Step-by-step explanation:
She starts with $420 and is taking out $20 a week so in the equation the 20 has to be negative because she is withdrawing instead of adding.
Please show all work.
Answer:
wait where is the photo?
Step-by-step explanation:
Which of the following is not a real number?
Answer: A
Step-by-step explanation: common sense
Answer:
its a -2 because its a negative and when u count u dont start with a negative do u?
Step-by-step explanation:
Which of the following is true about the lines defined by the equations 4x−2y=6 and x+2y=14? .
A.The lines share the same y-intercept.
B.Both lines intersect at point (1,−1).
C.The lines are perpendicular.
D.The lines are parallel.
Answer:
Only: C. The lines are perpendicular.Step-by-step explanation:
4x - 2y = 6 x + 2y = 14
- 2y = - 4x + 6 2y = - x + 14
y = 2x - 3 y = - ¹/₂x + 7
A.
y-intecept: (0, -3) (0, 7)
The lines don't share the same y-intercept
B.
x=1 ⇒ y = 2(1)-3 = -1 and y = -¹/₂(1) + 7 = 6¹/₂ ≠ -1
the line x+2y=14 doesn't go through point (1,−1) so the lines couldn't intersect at point (1,−1)
Slope: m₁ = 2 m₂ = -¹/₂
C.
m₁· m₂ = 2·(-¹/₂) = -1
The lines are perpendicular.
D.
m₁ ≠ m₂ The lines are not parallel
A jar contains 50 coins, all either 2 cents or 5 cents. The total value of the coins is $1.87.
How many 2 cents coins are there?
Answer:
there would be 21 cents
Answer:
they would be 21 cents coins
HOPE IT WILL HELP U!
Jillian burns 187 calories when she runs 2 miles. How many miles will she
need to run to burn 500 calories?
Answer:
I think jillian will have to run 10 miles
Step-by-step explanation:
2 miles = 100 calories
in order to burn 500 calories
2 miles = 100 calories burned
4 miles = 200 calories burned
6 miles = 300 calories burned
8 miles = 400 calories burned
10 miles = 500 calories burned
Una tableta contiene 500 mg de paracetamol, ¿cuántas tabletas se obtendrán con 5kg del mismo medicamento? xfavor ayudenme con explicación y todo lo necesito para el sabado
Answer:
Se pueden obtener 10.000 comprimidos de 500 mg de paracetamol a partir de la cantidad de 5 kg del medicamento
Step-by-step explanation:
La cantidad en masa de paracetamol en una tableta = 500 mg de paracetamol / tableta
El número de comprimidos que contienen 500 mg de paracetamol que se pueden obtener a partir de 5 kg del medicamento (paracetamol) se calcula dividiendo los 5 kg del medicamento por los 500 mg de paracetamol / comprimido de la siguiente manera;
[tex]El \ nmero \ de \ tableta = \dfrac{5 \ kg \ paracetamol}{500 \ mg \ paracetamol/tableta }[/tex]
Observamos que 5 kg = 5,000,000 mg
Por lo tanto;
[tex]El \ numero \ de \ tableta = \dfrac{5,000,000 \ mg \ paracetamol}{500 \ mg \ paracetamol/tableta } = 10,000 \ tabletas[/tex]
Por tanto, podemos obtener 10.000 comprimidos de 500 mg de paracetamol a partir de la cantidad dada de 5 kg del medicamento.
Find all the zeroes of the polynomial function
[tex]f(x)=x^3 -5x^2+6x -30.[/tex] If you use synthetic division, show all three lines of numbers.
Answer:
(x -5)(x² + 6)
Step-by-step explanation:
f(x) = x³ - 5x² + 6x - 30
Synthetic division:
5 1 -5 6 -30
0 5 0 30
1 0 6 0
(x - 5) is a factor
f(x) = x³ - 5x² + 6x - 30 = (x -5)(x² + 6)
For what of x is the equation 2(x - 12) + x = 36?
Answer:
The answer is J. 20 substitute it in and it works.
Answer:
J.20
Step-by-step explanation:
Given m|n, find the value of x.
Answer:
x = 135°Step-by-step explanation:
external angles are equal
therefore, x = 135
STATS QUESTION PLEASE HELP AND EXPLAIN!
A least squares regression line was calculated to relate the length (cm) of newborn boys to their weight in kg. The line is weight = -5.58 + 0.1686 length. A newborn was 48cm long and weighed 3 kg. According to the regression model, what was his residual? What does that say about him?
1) WHAT WAS HIS RESIDUAL?
2) WHAT DOES THAT SAY ABOUT HIM? SELECT THE CORRECT CHOICE AND FILL IN ANY ANSWER BOXES TO COMPLETE YOUR ANSWER (round to three decimal places as needed)
a. the newborn weighs ____ kg less than the weight predicted by the regression equation
b. the newborn weighs _____ kg more than the weight predicted by the regression equation
c. the newborn weighs the same as the weight predicted by the regression equation
Answer:
0.487 kg
b.) the newborn weighs 0.487kg more than the weight predicted by the regression equation
Step-by-step explanation:
Given the Regression equation:
Weight = - 5.58 + 0.1686 length
Length of newborn = 48 cm
Actual Weight of newborn = 3kg
Predicted weight from regression model:
Weight = - 5.58 + 0.1686(48)
Predicted Weight = 2.513kg
Hence, residual = (Actual - predicted)
Residual = (3kg - 2.513kg) = 0.487kg
Since the actual weight is more or greater than the predicted weight:
b.) the newborn weighs 0.487kg more than the weight predicted by the regression equation
Sally buys a certain brand of shampoo from a supplier at $9.25 per bottle. She marks it up 30%. What would the selling cost be ?
(YOU WILL ONLY GET THE POINTS IF YOU GIVE ME THE RIGHT ANSWER!!!)
Answer:
$2.775
Step-by-step explanation:
9.25*30%
Answer
2.78
this my explanation.John has a piece of clay that
weight 12 pounds. He divides the
clay into 5 equal pieces. How much
does each piece weigh?
Answer: 2.4
Step-by-step explanation:
10 divided by 5 = 2
2 divided by 5 is .4
2 + 0.4 = 2.4
Hope this helps!
