Answer:
-4
Step-by-step explanation:
The two equations you have are:
y = 3x - 7
x = 1 (this comes from the x value being 1)
To solve for y, use the substitution property of equality to replace x in the equation:
where x = 1,
y = 3(1) - 7
y = -4
Answer:-4
Step-by-step explanation:bc khan
A ton might weigh 2000 pounds. How many six grades might weigh 2000 pounds?
Answer:
25
Step-by-step explanation:
An average 6th grader weight 80 pounds and 2000/80 is 25
25 six graders might weigh 2000 pounds, considering the average weight of a six grader is 80 pounds.
Average is the mean value of the data. It is a measure of central tendency.
Given the following information:
A ton might weigh 2000 pounds.
We need to find the total number of six graders require to collectively weigh 2000 pounds.
Let the total number of six graders require = x
Consider the average weight of a six grader is 80 pounds.
Total weight= average weight of a six grader x total number of six graders x
Total weight= 80x
2000=80x
To calculate the value of x, divide 80 both the sides.
2000/80=80x/80
25=x
x=25
Thus, 25 six graders might weigh 2000 pounds.
Learn more about average, here:
https://brainly.com/question/32511583
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Kimberly and Emily went to lunch at
their favorite restaurant. Kimberly has a
$5 off coupon to use for her purchase of
$30. Emily has a 10% off coupon to use
for her purchase of $25. What is the
difference between the total amount
Kimberly and Emily will pay individually?
Help pls I will mark as brainlest if correct
Answer:
The slope is [tex] \frac{3}{8} [/tex].
Step-by-step explanation:
Remember: [tex]m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
☆Just plug in.
[tex]m = \frac{ - 7 - ( - 10)}{0 - ( - 8)} = \frac{3}{8} [/tex]
answers for both boxes please
Answer:
(-3, -6)
Step-by-step explanation:
y=2x
-3x-15=y
Use Substitution Method
-3x-15=2x
+3x +3x
-15=5x
/5 /5
-3=x
y=2x
y=2(-3)
y=-6
Answer:
(-3, -6)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Solving systems using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 2x
-3x - 15 = y
Step 2: Solve for x
Substitute in y: 2x = -3x - 15Isolate x terms: 5x = -15Isolate x: x = -3Step 3: Solve for y
Define equation: y = 2xSubstitute in x: y = 2(-3)Multiply: y = -6Uhhh help please
I need helppppp
Answer:
1?
Step-by-step explanation:
11/12 closest to
The cost of a daily rental car is as follows: The initial fee is $69.99 for the car, and it costs $0.30 per mile. If John initially pays $200.00 before taxes and does not want to exceed that amount, how many miles can he drive?
x ≥ 433 miles
x = 450 miles
x ≥ 450 miles
x ≤ 433 miles
x [tex]\geq[/tex] 433
explanation:
let m equal miles
0.30m + 69.99 = 200
-69.99 -69.99
0.30m = 130. 01
130.01 / 0.30 = 433. 36...
but we're gonna round it to 433
so 433 miles
what is the answer to..
Negative 10 is no less than 2 times a number plus 14
Can someone explain to me how I can find the domain and range of a rational graph?
example:
Answer:
no but try socratic
Step-by-step explanation:
it will help very much;)
what is the volume of the rectangular prism?
Answer:
3[tex]\frac{3}{4}[/tex] cm³Step-by-step explanation:
majorly confused about this and how to solve.
Answer:
The answer is 59.5
i need help please right answers only
Answer:
-3/2
Step-by-step explanation:
Count up three times and to the left twice. Let me know if you need help with other questions!
Can someone help me with this ???
help pls lol
choose the 3 equations that could be used to solve the following problem. an apartment charges $1200 each month for rent plus a one time rental fee of $500. if a person has paid 10,700, how many months has the person rented the apartment
Answer:
Options :
A.
C.
D.
Step-by-step explanation:
1200m + 500 = 10700
PLEASE HELP GIVING BRAINLIEST!!! INTERNET Kilroy's Web site business has increased every year for the last 3 years. Write the percent its increase during the second year as a decimal and as a fraction in lowest terms.
Answer:
1.15
Step-by-step explanation:
when you have a % above 100 you divide that by 100 so it's 115 divided by 100 which is 1.15
I need help now btw i am in middle school
Answer: x= 3
Step-by-step explanation:
2x + 5 = 11
2x = 6
x = 3
Can somebody who knows how to do this plz help answer all the questions correctly thanks!
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDDD
Answer:
17. $30
18. $2.24
19. 5
20. $2.2815 or rounded to $2.28
I think I’m right
Answer:
17. 30
18. 14
19. 5 hours
20. 15
Step-by-step explanation:
Solve.
-5 3/4 - 3 1/2
Answer:
The answer is
[tex] - 9 \frac{1}{4} [/tex]
What is an equation that represents a non proportional relationship???
I really need help(I know nothing about proportional and non proportional equations)
GIVING BRAINLY AND THANKS find the value of x show your work
find the measure of the missing angles
Answer:
b=80
c=80
Step-by-step explanation:
the angle opposite to the 100 degree angle is congruent to it
same goes for b and c
so far we have 2 angles that measure 100 degrees 100+100=200
the sum of the 4 angles is 360
360-200=160
160/2=80=b=c
find the estimates of x^2-x-2=3
Answer:
[tex]x=\frac{1+\sqrt{21}}{2}\approx 2.79\\or\ x=\frac{1-\sqrt{21}}{2}\approx -1.79[/tex]
Step-by-step explanation:
Given
Quadratic equation is
[tex]x^2-x-2=3\\x^2-x-5=0[/tex]
Roots of the quadratic equation [tex]ax^2+bx+c=0[/tex] are
[tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\[/tex]
So, for the given equation roots are
[tex]x=\frac{1\pm\sqrt{(-1)^2-4(1)(-5)}}{2\cdot 1}\\x=\frac{1\pm\sqrt{21}}{2}\\so, x=\frac{1+\sqrt{21}}{2}\approx 2.79\\or\ x=\frac{1-\sqrt{21}}{2}\approx -1.79[/tex]
Amory ate
1/4
of a box of cereal. Blaine
ate 2/9
of the same box. What fraction of
the box of cereal did they eat together?
Answer:
they ate 17/36 of the box together
Step-by-step explanation:
which one is greater , 65% or 3/5
Answer:
Step-by-step explanation:
65% is greater
1. Use the points in the diagram to name the figure.
C
D
is is 8 IA
DC
Answer:
its the last one maybe
DC
What's the circumference of a
circle with a diameter of 15 inches?
(Use 3.14 for pi)
Answer:
47.1 inches
Step-by-step explanation:
circumference is pi times diameter
3.14 times 15 is 47.1
Answer:
Step-by-step explanation:
47.1
please help me i will brainliest i swear
Answer:
B
Step-by-step explanation:
In 3y+1, the 3 is the coefficient
The circumference of a circle is 9.37cm.
Find the length of the diameter.
Give your answer rounded to 2 DP
Answer:
9.37 divide by two = 4.685
4.685 in 2DP = 4.68
Step-by-step explanation:
i hoped this helps.
Answer:
2.98 :)
Step-by-step explanation:
the circumference is when you do pi times diameter.
do 9.37 divided by 3.14(pi) to work out the diameter.
9.37/3.14=2.984
rounded its 2.98
Solve 3x - 4 ≤ 2 or 2x + 11 ≥ -1.
please help
Answer:
x≤2 or x≥-6
Step-by-step explanation:
Isolate the variables on both equations
3x-4≤2
3x≤6
x≤2
2x+11≥-1
2x≥-12
x≥-6
f(x)=5(X-2)^2+4
Find vertex, Direction of parabola, and axis of symmetry
45 marbles in 9 bags; 150 marbles in 36 bags
is this rate proportional?
Answer:
No, the rate is not proportional.
Step-by-step explanation:
If there are 45 marbles in 9 bags, we can assume that there are 5 marbles in each bag.
Going by that rate, we can do 5 * 36 = 180, NOT 150.
Thus, the rate is not proportional.
Another way to solve would be to do 45/9 and 150/36. If the rate is proportional, the answer for both should be the same.
However, 45/9=5 and 150/36=4.16666666667.
Those two answers are NOT equal.
Thus, the rate is not proportional.