Answer:
7
Step-by-step explanation:
Answer: 7
Step-by-step explanation:
1. Sarah and Maya both need notebooks and pencils. The equation that represents Sarah's
purchases is y = 13- 3x. The equation that represents Maya's purchases is y = 7 -x. If y
represents the price of notebooks, and x represents the price of pencils, what are the prices of
the notebooks and pencils?
a) pencils: $4 notebook: $3 go to card 4
b) pencils: $6 notebook: $1 go to card 3
c) pencils: $3 notebook: $4 go to card 5
d) pencils: $1 notebook: $6 go to card 7
e) pencils: $4 notebook: $4 go to card 2
Step-by-step explanation:
We have y = 13 - 3x and y = 7 - x.
=> 13 - 3x = 7 - x
=> 2x = 6, x = 3.
Then y = 7 - (3), y = 4.
Hence the price of a pencil is $3 and the price of a notebook is $4. (C)
answer is c) pencils: $3 notebook: $4 go to card 5
Coupon A-14$ rebate on 77$ jacket
Coupon B- 15% off on a 77$ jacket
Easy! What is -6^2? The calculator says -36, but -6*-6 is 36. Confusing.
You entered;
[tex]-6^{2}=(-1)(6)(6)=(-1)(36)=-36[/tex]
In order to get the answer that you intended;
[tex](-6)^{2}=(-6)(-6)=36[/tex]
What are the zeros of f(x)=(x+5)(x-9)?
Answer:
x= -5
x= 9
Step-by-step explanation:
Answer:
x = - 5, x = 9
Step-by-step explanation:
To find the zeros equate f(x) to zero, that is
(x + 5)(x - 9) = 0
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x - 9 = 0 ⇒ x = 9
8x + 5x what is it simplify
Answer:
13x
Step-by-step explanation:
you would just add the 2 numbers together and then keep the variable. if you know the variable (if there’s a sheet to go off of) then multiply and add but otherwise it’s just 8 + 5 then add an x. 13x
=====================================================
Explanation:
x is a placeholder for a number. Think of it like a box holding a number. Conveniently, the letter 'x' is in the word 'box', so its naturally fitting to use x here.
Writing 8x could represent the idea of us having 8 boxes that are identical. Adding on 5x means we add on 5 more boxes. This leads to 8+5 = 13 boxes in total.
This is one way to see how 8x+5x = 13x
Another way is to write it like this: 8x+5x = (8+5)x = (13)x = 13x. I used the distributive property here.
Combining these terms is possible because 8x and 5x are like terms. They have the same variable and same exponent. We're adding two of the same type of object together.
Pls help me will mark brainliest................
Answer: A) 356.48m²
Step-by-step explanation:
divide up the shape:
square:
a=s*s
16*16=256m^2
Semicircle:
a = 0.5*πr²
(r would be half of a square side which is 8)
0.5*3.14*64=100.48
Add up the shapes:
100.48+256=356.48m²
Explain in 1-2 sentences how you identify
proportional relationship
using a table or graph.
PLEASE helpppp
Answer:
You can tell because, as x increases/decreases, y increases/decreases at the same rate EACH TIME. This way, no matter how many times the proportions increase OR decrease, the ratio between x and y always stays the same.
Determine which function has a greater change of rate.
Be sure to show work as well.
Answer:
A
Step-by-step explanation:
You need to find the slope in A. y = x + (4x - 1) = 5x -1. The slope is 5.
In B, as x increases 1 unit, y increases 1 unit. Therefore, the rate of change is 1/1 = 1
Conclusion: In A the rate of change is 5 and in B the rate of change is 1.
Therefore, A has a greater rate of change
Use the distributive property to find the equivalent expression.
9(3 + 7k) =
+
Answer:
63k + 27
Step-by-step explanation:
9(3) + 9(7k)
27 + 63k
I will give brainliest away if you solve this for me please.
Turn both equations into slope-intercept form [ y = mx + b ].
x + 3y = 3
~Subtract x to both sides
3y = 3 - x
~Divide 3 to everything
y = 1 - x/3
~Reorder
y = -1/3x + 1
4x + 3y = -6
~Subtract 4x to both sides
3y = -6 - 4x
~Divide 3 to everything
y = -2 - 4x/3
~Reorder
y = -4/3x - 2
Graph of the equations will be shown below. Note that the solution of graphing two equations will be where both equations intersect. Both lines intersect at (-3, 2), hence making that the solution.
Best of Luck!
Answer:
Hey, so this is what I got for them as equations. The 1st one is y=-1/3x+1, and the 2nd one is y=-4/3x-2. Hope it helps
Step-by-step explanation:
Write the equation of the line passing through the point (3, 5) that is
PEREPENDICULAR to y = -3/4x + 5 in slope-intercept form.
Answer:
Step-by-step explanation:
perp. 4/3
y - 5 = 4/3(x - 3)
y - 5 = 4/3x - 4
y = 4/3x + 1
What is the perimeter and area of this shape:
i added a picture, pls answer correctly and don’t guess. Answer choices for perimeter are:
7.14, 8,28, 10.28, 16.56
Answer choices for area are:
7.14, 8.28, 12.56, 16.56
Everyone keeps on ignoring me): please help will mark brainliest):
Answer:
Step-by-step explanation:
They are testing whether you remember the basic 30,60,90 degree triangle side relationship. The ratio of sides for this triangle are 1 opposite the 30 degree angle, square root of three opposite the 60 degree angle and a hypotenuse of 2 opposite the 90 degree angle.
x/2=2/1
x=4/1=4
bottom answer choice
x/4=3^(1/2)/1
x=4(3^(1/2))
third answer choice
what is 30 divided into the ratio of 7:8
Kennedy and Amaya want to make a scale drawing of Central Park. They want to use the scale of 1in : 1ft. Can you change that scale to a scale WITHOUT UNITS?
Two distinct number cubes, one red and one blue, are rolled together. Each number cube has sides numbered 1 through 6. What is the probability that the outcome of the roll is an even sum or a sum that is a multiple of 3?
Enter your answer, in simplest fraction form, in the box.
What is the area of the circle below?
10 ft
Answer:
CircleSolve for area
A=π r^2
r =Radius
You about this first:The circumference of a circle is its perimeter or distance around it. It is denoted by C in math formulas and has units of distance, such as millimeters (mm), centimeters (cm), meters (m), or inches (in). It is related to the radius, diameter, and pi using the following equations: C = πd. C = 2πr.
Step-by-step explanation:
Hope it is helpful....
What is : -4x + 3 = -11
Answer:
3.5
Step-by-step explanation:
-11-3, then that divided by -4.
Daniel wants to buy Five-sixths of a pound of pecans. Pecans cost $7.98 per pound. How much will Daniel spend on pecans?
A. $6.65
B. $7.15
C. $8.00
D. $10.00
Answer:
A. $6.65
Step-by-step explanation:
To find how much 1/6 is you divide $7.98 by 6 and so the answer is $1.33. Now multiply $1.33 by 5 to get 5/6 or get the answer $6.65.
-6×-15=4×+35 i need help with this problem
Answer:
x = -5
Step-by-step explanation:
-6x - 15 = 4x + 35
+ 15 + 15
-6x = 4x + 50
-4x - 4x
-10x = 50
-10x/-10 = 50/-10
x = -5
HELPPP PLEASEE SMART PEOPLE ON HERE
Answer: C
Step-by-step explanation:
Answer:
the answer is C I swear to yo mama
The decimal 4.6 is the same as what fraction?
Answer:
23/5
is the 4.6 fraction
The decimal 4.6 is equivalent to the fraction 23/5.
The whole number part of the decimal, which is 4, will be the numerator of the fraction.
The decimal part, which is 0.6, will be the numerator of the fraction divided by the appropriate power of 10.
In this case, the decimal has one digit after the decimal point, so we divide it by 10¹.
0.6 / (10¹)
= 0.6 / 10 = 6/10
Simplify the fraction if possible.
Both the numerator and denominator can be divided by their greatest common divisor, which is 2 in this case.
6/10 = (6/2) / (10/2) = 3/5
Therefore, the decimal 4.6 is equivalent to the fraction 4 3/5 or simply 23/5 after simplification.
To learn more on Fractions click:
https://brainly.com/question/10354322
#SPJ6
A store owner buys a sweater at $12 and sells it for $15. What was the
percentage of the price increase?
Answer:
it would be a 25% increase.
Step-by-step explanation:
15-12 / 12 * 100 =
3/12 * 100 = 25
Rylee estimated that her dog weighed 23 pounds, but the vet's scale
showed that he was 26 pounds. What is the percent error?
Answer: 3
Step-by-step explanation:
What
Find the volume of the cone.
Either enter an exact answer in terms of pie or use 3.14 for pie and round your final answer to the nearest hundredth.
Answer:
301.59
or
96 π
Step-by-step explanation:
on khan acad. if you click on the box, you can click on the pi icon to do it in terms of pi.
I always do in terms, but make sure to learn the other way :)
the formula for cone volume is π r^2 h/3
radius = 6
height = 8
π 6^2 8/3
π 36 8/3
π 36 x 8 /3
π 288 / 3
π 96
what is the square root of 1/64
The square root of 1/64 is 1/8.
To find the square root of 1/64, we can simplify the fraction first by taking the square root of both the numerator and the denominator separately.
The square root of 1 is 1,
and the square root of 64 is 8:
So, √(1/64)
= √1 / √64
= 1/8
Therefore, the square root of 1/64 is 1/8.
Learn more about Square Root here:
https://brainly.com/question/29286039
#SPJ6
A local bookstore has 30 copies of a bestseller when it opens on Monday morning. On Monday, it sells 6 copies of the book. On Tuesday, it sells 3 copies. On Wednesday, it receives a shipment containing 24 copies of the books and also sells 8 copies. How many books does the store have at the end of Wednesday?
so it starts with 30
monday: 30-6 24 copies left
tuesday: 24-3 21 copies left
wenesday: 21+ 24 45-8 37 copies
its has 37 copies left
Please answer questions one and two
Whats the slope of the table help pls
Answer: y=4x+8
Step-by-step explanation:
please like mark me brainlest
Hi! So my class is starting Trinomials and I don’t understand it. We have to fill out this chart and I don’t know how. Can someone please help or explain it to make it easier. PLEASE HELP
Answer: To factor a trinomial in the form x2 + bx + c, find two integers, r and s, whose product is c and whose sum is b. Rewrite the trinomial as x2 + rx + sx + c and then use grouping and the distributive property to factor the polynomial. The resulting factors will be (x + r) and (x + s).
Step-by-step explanation: