Answer:
The amount the student needs to save is approximately $269.167
Step-by-step explanation:
The amount the student already has saved for his laptop = $307.50
The amount the student puts aside each month to pay for the laptop = $100
The total amount saved after 5 months = 75% of the total cost of the laptop
Therefore, we have;
The total amount the student has after 5 months = $307.5 + 5 × $100 = $807.5
The total amount saved after 5 months = 75% of the total cost of the laptop
Therefore;
$807.5 = 75% of the total cost of the laptop
The total cost of the laptop = $807.5/75% = $807.5/75 × 100 = [tex]\$ \ 1076\frac{2}{3}[/tex]
The total cost of the laptop ≈ $1076.67
Therefore;
The amount the student needs to save = $1076.67 - $807.5 = [tex]\$ \ 269\frac{1}{6}[/tex]
The amount the student needs to save ≈ $269.167.
Please help!!! Look at the attachment for the question please
Answer:
#2 is 135 and #1 is 45
Write a linear function f with f(2)= –2 and f(1) =1.
f(x) =
Answer - the answer should be:
-3x+4
down below is how i did it,
Step-by-step explanation:
use the formula mx+b=y
y is f(x)
m = -3
x = x
b = 4
so,
mx+b is -3x+4
Answer:
f(x)=-3x+4
Step-by-step explanation:
Slope= -3
(1-(-2))/(1-2)=3/-1= -3
Y-intercept= 4
the density of iron is 7.8 g/cm^3 and its mass is 15 g . the volume of iron rim
Answer:
Step-by-step explanation:
d=m/V
7.8=15/V
V=15/7.8
≈1.92 cm³
1. Find the zero of: (write just the number, If there is no zero, write "none")
f(x) = -x - 5
Answer:
-5
Step-by-step explanation:
f(x) = -x - 5
did before
f(-5)= 5-5
Suppose you and your friends are splitting three pizzas, with 8 slices each. If you have each eaten 3 pieces, equalling 1/2 of the total amount of slices, how many people are there (including you)? Write an equation to represent this scenario and then solve.
Answer:
phle follow karo yrr tab hee bat u ga,
"Find four objects in your home, school, or neighborhood that create or include a right triangle." Examples are: "steps to a different level of the house" and "a very tall book on a bookshelf, leaning against the shelf's side"
I'm struggling y'all
Answer:
I think
Step-by-step explanation:
you get a book get a ruler make a
right a ruler i rdk im sorry bro
4. Denise thinks of a number, multiplies by 7, and then subtracts 2 from the 5 points
result. If the number Denise thinks of is represented by t, how can this be
written using algebra
Answer:
(t x 7) 5 - 2
Step-by-step explanation:
I think that is how it would look, I hope it helps!
15.5+(-10.5) i need help now
Answer:
=5
Step-by-step explanation:
Answer:
The answer would be 5 positive
Step-by-step explanation:
First, just take out those slashes cause you don't really need them there just there to make it hard to understand and then you do the rest and use a line to understand better.
12 The price of a house is originally listed at $120,000. The owners are having a hard time selling it and decide to reduce the price to $110,400. What is the percentage decrease of the price of the house? OA. 92% OB. 0.8% OC. 9.6% OD. 8%
Answer: 8 percent
Step-by-step explanation:
120,000 - 110,400 = 9,600
9,600/120,000 = 0.08
0.08 * 100 = 8 percent
Answer:
D:8%
Step-by-step explanation:
If your starting value is $120,000 then it is marked down to $110,400 then the difference between the two is $9,600. Taking this value and dividing it by the starting value gives you the percentage. The number your calculator spits out is 0.08, so reading as a decimal, it is an 8% markdown.
Find the value of x. Then find the measure of each angle.
Answer:
30, 85, 85
Step-by-step explanation:
(first, look at the photo)
3x - 5 = x + 55
3x - x = 55 + 5
2x = 60
x = 30
1) x = 30
2.angle = 3x-5
3.30 - 5 = 90 -5 = 85
3.angle= x + 55
30 + 55 = 85
hope this helps ^-^
Let f be a differentiable function with selected values given in the table above. What is the average rate of change of f over the closed intervals 0<_ x <_10?
Answer:
B
Step-by-step explanation:
The average rate of change is synonymous with the slope.
So, essentially, we want to find the average slope of our function f(x) from x=0 to x=10.
So, we will use the two following points: (0,5) and (10, -20).
Recall the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Let (0, 5) be (x₁, y₁) and (10, -20) be (x₂, y₂). Substitute. This yields:
[tex]m=\frac{-20-5}{10-0}[/tex]
Subtract and reduce:
[tex]m=-25/10=-5/2[/tex]
So, the average slope of f(x) between x=0 and x=10 is -5/2.
Our answer is B.
And we're done!
Answer:
B
Step-by-step explanation:
HELP PLEASE THANKS
When solving a multi-step equation, which number do you "undo" first?
A The number on the opposite side of the equals side from the variable
B The number furthest from the variable (but on the same side of the equals sign)
C order doesn't matter - choose which one you want to do first
D The number touching the variable
Answer:A
Step-by-step explanation:
Answer:
It's C Order doesn't matter - choose which one you want to do first. Don't worry I took the test
Step-by-step explanation:
Mrs.Jacinto asked carpenter to construct a rectangular bulletin board for her classroom. She told the Carpenter that the board's area must be 18 square feet.
Answer:
6 ft by 3 ft
Step-by-step explanation:
b)the LCM of three numbers is 24 and their G.C.D is 4. If two
find the other number
6
Step-by-step explanation:
because 6*4=24, so the G.C.D is 4 and the other number is 6
A secret recipe requires you mix chocolate and cream cheese in the ratio 3:2, based on weight. If you use 21 oz of chocolate, how much cream cheese do you need?
Answer: 14 oz
Step-by-step explanation:
CH/CR 3:2
3x/3=21/3
x=7
2*7=14 oz.
If you use 21 oz of chocolate, 14 oz cream cheese is needed.
What is ratio?A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same sort and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.
You can compare any two amounts that have the same units.
Given:
ratio of chocolate and cream cheese = 3:2
let the common ratio be x
Chocolate= 3x and Cream cheese = 2x
So, 21 oz of chocolate used
3x=21
x- 21/3
x=7
then, the cream cheese used
= 2 x 7
=14 oz.
Learn more about ratio here:
https://brainly.com/question/13419413
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1. Find the slope of the line passing through (-3,-4) and (-6,-2).
Answer:
slope = - [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 3, - 4) and (x₂, y₂ ) = (- 6, - 2)
m = [tex]\frac{-2+4}{-6+3}[/tex] = [tex]\frac{2}{-3}[/tex] = - [tex]\frac{2}{3}[/tex]
Answer:
slope= 2/-3
Step-by-step explanation:
Equation of the line: y=2/-3x-6
the slope being 2/-3
the y-intercept being -6
putting the slope as -0.66667 will still get you the same line going.
Hope this helps! :)
w=1/9(x+y-z)
what’s the answer please help
Answer:
1/9x+1/9y-1/9z
Step-by-step explanation:
The given equation can be written as w = x/9 + y/9 + z/9.
What are Linear Equations?Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.
Linear equations may include one or more variables.
Given the linear equation,
w = 1/9 (x + y + z)
We have the distributive property which states that,
For any three numbers, p, q and r, p (q + r) = (p q) + (p r)
So applying distributive rule in the expression given, we get,
w = (1/9 x) + (1/9 y) + (1/9 z)
w = x/9 + y/9 + z/9
Hence the given linear equation w = 1/9 (x + y + z) can be written as w = x/9 + y/9 + z/9.
To know more about Linear Equations, click on the link given below :
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Evaluate:
. C=4x? rind the value of c- given thatx = 16
pour
Answer:
c=4x
c-4(16)
c=64
Step-by-step explanation:
8: There are 15 red chairs for every 8 green chairs. If there are 90 red chairs, how many red and green chairs are in the room? *
Find the value of the expression.
7-(-4)=
Answer:
11
Step-by-step explanation:
When you have a positive number minus a negative number it will automatically turn into addition.
EX.
7-(-4) turns into 7+4
Kyle caught 9 insects for his science project in the first week. He caught 13 insects in the second week. What is the percent increase in the number of insects Kyle caught from the first week to the second week? Round your answer to the nearest whole number
pleaseeeee
Answer:
44%
Step-by-step explanation:
The percent increase would be calculated as the increase in insects caught divided by the original number of insects caught from the first week:
13-9 = 4 more insects caught.
4/9 = .44444
When doing percentages we multiply the decimal by 100, or move it over two places to the right, so it will be 44.4%
Numbers 4 and under round down.
Therefore,
44% is the increase
7y=14 is 94 what is the answer
Answer:
I don't know what the 94 has to do with this but...
7y=14
14/7
=2
y=2
7(2)=14
Step-by-step explanation:
y=2
The radius of Earth is about 6.38 x 10³ kilometers. Write this distance in standard notation
6.38 * 10^3 = 6380 kilometers.
Hope this helped!
Answer:
6380km
Step-by-step explanation:
10³ is just 1000 if you think about it.
6.38 multiplied by 1000 would just mean you need to move the decimal to the right 3 times.
Also if you look up the earth's radius on wikipedia, it says 6,371km which is close to 6,380km.
Which of these statements is true?
A: All rectangles are regular polygons.
B: All squares are regular polygons.
C: All rhombi are regular polygons.
D: All parallelograms are regular polygons.
Answer:
B all square are regular polygons
Solve the literal equation x - 2z = 45 for x
What does 3/7 + 1/4 equal?
In the figure, PQ is parallel to RS. The length of RP is 5 cm, the length of PT
is 30 cm; the length of QT is 60 cm. What is the length of 50?
Answer:
A. 10 cm
Step-by-step explanation:
I need help quickly the problem is on the picture
Make a conjecture about the diagram below. Is AC greater than, less than, or equal to BC? Explain your reasoning.
Triangle A C B is sitting on horizontal line X Y. Points A and B of the triangle are on the line. Angle C B Y is 90 degrees.
Answer:
AC is greater than BC because segment AC is the hypotenuse of right triangle ABC, and the hypotenuse is the longest side of a right triangle.
The hypotenuse is the longest side of the triangle. Side AC of the triangle is its hypotenuse, thus greater than BC (segment and angle theorem of a triangle).
A triangle is a shape with three side and angles. Its longest side is referred to as hypotenuse. And this side is usually opposite to the greatest angle. Examples of triangle include: equilateral, isosceles, acute, right angles, obtuse angle etc.
The given question shows that triangle ACB is a right angled triangle. This is because <CBY = [tex]90^{o}[/tex].
So that;
<CBY + <CBA = [tex]180^{o}[/tex]
Now comparing side AC with BC:
The segment and angle theorem of a triangle states that: the longest side of a triangle is always opposite to the greatest angle.
Thus, since <CBA is the greatest of the angles here, then AC is the longest side.
Therefore, the side AC is the hypotenuse of the triangle and it is greater than BC.
A sketch to this question is attached to this answer for more clarifications.
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Simplify: 21/36
Dddrtghjdrsrsxyffyyguguggu
Answer:
7/12
Step-by-step explanation:
divide the numerator and denominator by 3: 21 ÷ 3 and 36 ÷ 3
this gives you 7/12