Kramer earns $400 a week at the bookstore plus $3 for every magazine he sells. He uses the equation y = 3x + 400 to represent his earrings, where x represents magazine sales and y represents his weekly pay.
If he needs to earn $490 next week to pay for his summer field trip, how many magazines does he need to sell?
Answer:
30
Step-by-step explanation:
490= 400 + 3x
3x=90
x=30
1 Evaluate the expression. r3 - 2s if r = 5 and s = 4
Answer:
117
Step-by-step explanation:
Given the expression
r³ - 2s ← substitute given values into the expression
= 5³ - 2(4)
= 125 - 8
= 117
Please help!! Thank you so much!!
Answer:
AC, AB, BC
Step-by-step explanation:
3x-13+2x-20+x+15=180
6x-18=180
6x=198
x=33
<a 86
<b 46
<c48
Identify the x- and y-intercepts of the equation
4x - y = 8
[tex]\boxed{\boxed{\pink{\sf \leadsto The \ x - intercept \ is \ (2,0) \ \& \ the \ y \ intercept \ is \ (-8,0) }}}[/tex]
Step-by-step explanation:A linear equation is given to us and we are required to find x and y Intercepts to it. So the given linear equation to us is ,
[tex]\bf \implies 4x - y = 8 \\\\\bf\implies \dfrac{1}{8} \bigg( 4x -y\bigg) =\frac{1}{8}\times 8 \\\\\bf\implies \dfrac{4x}{8}-\dfrac{y}{8} = \dfrac{8}{8} \\\\\bf\implies \dfrac{x}{2}-\dfrac{y}{8}=1 \\\\\bf\implies\boxed{\red{\bf \dfrac{x}{2}+\dfrac{y}{-8}=1 }}[/tex]
Hence on comparing to standard form we get
x intercept as (2 , 0 )y intercept as (0,-8) Hence the x - intercept is ( 2 , 0 ) and the y - intercept is ( 0 , -8 ) .Answer:
x = (2,0)
y = (0,-8)
Step-by-step explanation:
Remember than an intercept always has the other number as 0.
Let's put this in standard form of a linear equation, or y = mx + b
4x - y = 8
-y = -4x + 8
y = 4x - 8
"b" is the y intercept. The y intercept is -8, or (0,-8)
Now, to find the x intercept, all we have to do is substitute 0 for y.
0 = 4x -8
8 = 4x
2 = x
The x intercept is 2, or (2,0)
Is this table a function?
Yes, because every y is matched with only one x
Yes, because every x is matched with only one y.
No, because the table does not include the point (0, 0)
No, because the table is not proportional.
please help and please explain
Answer:
D
Step-by-step explanation:
Quadrant II is the top right corner. Both of the values are positive there so the only correct answer is D.
Hope this helps!
Present the trigonometric relations of the ratios via,
Pythagoras Theorem
Answer:
ypotenuse squared = adjacent squared + opposite squared
Step-by-step explanation:
sin θ =opposite/hypotenuse
tan θ = opp/adjacent
cos θ = adj/hyp
Pythagoras Theorem states that hypotenuse squared = adjacent squared + opposite squared
Please answer!! It's in the exam I'm taking!! The first correct answer gets brainliest
Answer:
Answer B, AB is parallel to CD
Step-by-step explanation:
I'm 99% sure this is the answer.
3x -(-2-4x)=
What does this equals??
Answer:
7x + 2
Step-by-step explanation:
Original Equation: 3x − ( −2 − 4x)
First, we distribute the negative sign:
= 3x + (−1) (−2−4x)
=3x + (−1)(−2) + (−1)(−4x)
= 3x + 2 + 4x
Using the communitive property of addition, we can write:
= 3x + 4x + 2 (Instead of 3x + 2 + 4x)
Combining like terms, we get:
= (3x + 4x) + 2
= 7x + 2
PLEASE I NEED HELP!!!!!!!!!
Answer: Its 5 1/12 hope this helped!!!
Answer
Answer = 278/63 as in the pic
can you explain this to me
Answer:
The answer is D. 20%
ASAP NOW AND YOULL GET 20 and ILL ANSWER ONE OF URS
Answer:
its the second option.
Step-by-step explanation:
Which expression is equivalent to that
Answer:
3. 9x
4. D. -5v + 4
Step-by-step explanation:
3. (-3+12)v
= 9v
4. Combine like terms:
(-2v - 3v) + (8 - 4)
= -5v + 4
solve for X, each figure is a parallelogram
Step-by-step explanation:
[tex]x + 80 = 180 - (64 + 36) \\ x + 80 = 180 - 100 \\ x + 80 = 80 \\ \boxed{x = 0}[/tex]
0 is the right answer.A watercolor painting is 24 inches long by 11 inches wide. Ramon makes a border around the watercolor painting by making a mat that adds 3 inches to each side of the length and the width. What is the area of the mat?
Given: It is given that the length of the painting is 24 inches and the width is 11 inches.
To find: Area of the mat
Solution:
The watercolor painting is 24 inches long by 11 inches wide.
So, the area of the painting is:
[tex]\text{Area of painting}=l\times b[/tex]
[tex]\text{Area of painting}=24\times 11[/tex]
[tex]\text{Area of painting}=264 \text{ in}^2[/tex]
The length of painting with mat is = 24 in + 3 in + 3 in = 30 in
The width of painting with mat = 11 in + 3 in + 3 in = 17 in
[tex]\text{Area of painting with mat}=30\times 17[/tex]
[tex]\text{Area of painting with mat}=510 \text{ in}^2[/tex]
Now to calculate the area of mat subtracts the area of painting from the area of the mat.
[tex]\text{Area of mat}=\text{Area of painting with mat}-\text{Area of painting}\\[/tex]
[tex]\text{Area of mat}=510-264[/tex]
[tex]\text{Area of mat}=246 \text{ in}^2[/tex]
Hence, the area of the mat is 246 in².
Which equation is equivalent to
f(x) = 16x4 – 81 = 0?
(4x2 - 9)(4x2 - 9) = 0
(4x2 + 9)(4x2 - 9) = 0
(4x - 9)(4x - 9) = 0
(4x + 9)(4x - 9) = 0
Answer:(4x2+9)(4x2-9)=0
Step-by-step explanation:(4x2+9)(4x2-9)=0
Your welcome
these are the choices
10
8.7
8
8.5
Answer:
8.7
Step-by-step explanation:
Answer:
8.7
Step-by-step explanation:
the sides are 1 red line, which means congruent.
Since they are congruent, DF~=EG, which means that EG is 8.7
Hope this helps plz hit the crown :D
Find the product.
-3( -12)
-3( -12) =
Identify the terms, like terms, coefficients,
and constants in 5n - 2n – 3 + n.
Answer:
5n - 2n - 3 + n
3n - 3 + n
3n + n = 3
4n = 3
N= 4 ➗ 3
N = 1.33
Step-by-step explanation:
(-5,2) and (1,-2) what’s the rise/run?
Answer:
m= -2/3
Step-by-step explanation:
Use the slope formula to find the slope m .
A random survey of the quality of city parks is taken. Sixty-five percent of the people surveyed were pleased with the condition of the parks. If 182 people were pleased, then how many were surveyed? (sorry if its not a lot of points I just made an account ^ ^)
Is the equation y = x3 - 2 a linear equation?
Answer:
Not linear
Find the degree of the equation to determine if linear.
b) 7+2x/3 =5
helppppp
Answer:
4
Step-by-step explanation:
7+2x/3=5
7+2x. = 15
2x. =8
x. = 4
i hope it is helpful
Answer:
[tex] \frac{3x + 4}{2} = 9.5 \\ 3x + 4 = 19 \\ 3x = 15 \\ \boxed{x = 5}[/tex]
[tex] \frac{7 + 2x}{3} = 15 \\ 2x + 7 = 45 \\ 2x = 38 \\ \boxed{x = 19}[/tex]
Karim uses a total of 20 cups of batter to make x cupcakes and a cake. He uses cup of batter for each cupcake and 4 cups of batter for the cake. How many cupcakes, x, can Karim make if he uses all the batter?
Answer:
16 cupcakesStep-by-step explanation:
Total cups of batter = 20
He uses 4 cups for cake and the rest for cupcakes
Number of cupcakes is:
x = 20 - 4 = 16Jamie burned 480 calories in an exercise
class on Monday. She took a different class
the next day and burned as many
calories as she did on Monday. How many
calories did she burn on Tuesday?
Please help. BRAINLIEST to correct answer!!
Answer:
True
Step-by-step explanation:
This is true because these tables represent inverses of each other. I think.
2. What does ST TU mean? Why is
this true?
Answer:
STTU either means Specialized Tactical Training Unit or Surrounding Thyroid Tissue Uptake
Step-by-step explanation:
ST and TU are typically used to measure a line and/or angle in a triangle or shape. This is true because I've seen it multiple times.
May I have brainliest please? :)
could you help me with this
Answer: 40
Step-by-step explanation:
All you have to do is divide it. However, the actual answer is 40.5, but I'm sure that they round it.
Answer:
There would be 40
Step-by-step explanation:
What is the product of -4 and 2 3/5
Answer:
[tex]( - 4) \times 2 \frac{3}{5} =(- 4) \times \frac{13}{5} = \frac{ (- 52)}{5} \\ = \boxed{ - 10.4}[/tex]
-10.4 is the right answer.Answer:
-12/5
Step-by-step explanation:
2 and 3/5 can be changed to 13/5
multiply -4 by 3/5 to get -12/5
anyone know the answer to this
Answer:
s = 2
Step-by-step explanation:
6 x 2 = 12
12 - 4 = 8