Answer:
5 hours
Step-by-step explanation:
Given that :
Juan:
Rate = 12mi/hr
$9.75/mi
Carlos :
Rate = 10mi/hr
$11.50/mi
To raise atleast $1000 altogether :
Let number of hours = h
Distance = rate * time
[(12*h) * 9.75] + [(10*h) * 11.50] ≥ 1000
[117h + 105h] ≥ 1000
222h ≥ 1000
h ≥ 1000/222
h ≥ 4.504
To earn atleast $1000 altogether, they must work for atleast 5 hours (nearest whole number).
-3 -5 1 0 3
Three different numbers from the list are added together to give the smallest possible total.
Complete the sum below.
Don deposited $3,500 for 5 years on 2.40 pa interest rate in his savings account how much simple interest will he earn
Joey has already taken 3 pictures at home, and he expects to take 1 picture during every
day of vacation. How many days will Joey have to spend on vacation before he will have
taken 13 pictures?
A factory can fill 225 bottles of orange juice each hour. Each bottle of orange juice contains 24 fluid ounces. Each bottle of juice sells for $5.50. How many fluid ounces of juice are filled in each 12-hour shift?
Answer:
27 i think
Step-by-step explanation:
I divided them to make sure its right im not 100 percent sure tho
Sweet Treats Bakery is placing an order for 6,795 kilograms of sugar. That is 25% less than the bakery requested in its last order. How much sugar did Sweet Treats Bakery order then?
Answer:
9060
Step-by-step explanation:
let s be the amount of sugar the bakery ordered in the last order
s - 0.25s = 6795
0.75s = 6795
divide both sides by 0.75
9060
Zainab has 25 beads.
She gives 6 of the beads to Lucy.
What fraction of the 25 beads does Zainab have now?
Give your answer in its simplest form.
Answer:
19/25 it cant simplified
Step-by-step explanation:
may someone help me ASAP? I am solving polynomial equations and I don't know how to do it, here is the equation... x^4+11x^2=3x^2+128
Answer:
[tex]x=2\sqrt{2}[/tex], [tex]x=-2\sqrt{2}[/tex], [tex]x=4i[/tex], [tex]x=-4i[/tex]
Step-by-step explanation:
[tex]x^4+11x^2=3x^2+128[/tex]
First, we subtract 128 from both sides:
[tex]x^4+11x^2-128=3x^2[/tex]
Then, we subtract [tex]3x^2[/tex] from both sides:
[tex]x^4+8x^2-128=0[/tex]
Rewrite the equation:
[tex]u^2+8u-128=0[/tex]
Insert and solve:
[tex]u^2+8u-128=0\\u=8,u=-16\\x^2=8:x=2\sqrt{2},x= -2\sqrt{2} \\x^2=-16:x=4i,x=-4i[/tex]
Please give Brainliest
In this cube each small square has a side length 1 unit what is the surface area of this cube
==============================================================
Work Shown:
x = side length = 1 unit
SA = surface area of cube
SA = 6x^2
SA = 6*1^2
SA = 6*1
SA = 6
The surface area of the cube is 6 square units.
-------------------------
Side note:
In general, each face is x*x = x^2 units in area, and there are 6 of those faces. This is why the general surface area is 6x^2. In this case, each face is 1 square unit, so all 6 faces lead to a total of 6 square units.
If 15 is 25% of a value, what is that value? A. 40 B. 65 C. 75 D. 60
Answer:
d. 60
Step-by-step explanation:
x=15/0.25
15/0.25=60
Help me please I need this grade!
Which expression is equivalent to 24x + 18y?
A) xy + 42
B) 6(4x + 3y)
C) 6xy(4 + 3)
D) 42xy
Step-by-step explanation:
The Answer is C I got it right on edge.
Answer:
B) 6(4x + 3y)
Step-by-step explanation:
I got that one wrong I got a 90 but B is it
Find the indicated term of each sequence by repeatedly multiplying the first term by the common ratio. Enter your answer to 7 decimal places if necessary. Use a calculator. 12, −2.4, 0.48, ...; 7th term The 7th term of the sequence is
Answer:
The 7th term of the sequence is 0.000768
Step-by-step explanation:
As given, the sequence is : 12, -2.4 , 0.48, ....
The first term = 12
Second term = -2.4
Third term = 0.48
Common ratio = [tex]\frac{-2.4}{12} = \frac{0.48}{-2.4} = -0.2[/tex]
Fourth term = 0.48(-0.2) = -0.096
Fifth term = -0.096(-0.2) = 0.0192
Sixth term = 0.0192(-0.2) = -0.00384
Seventh term = -0.00384(-0.2) = 0.000768
What is the value of x? Enter your answer in the box.
Solve each system of equations algebraically
y=x+2
y=-3x
Answer:
Your answer is: (-1/2, 3/2)
Step-by-step explanation:
y = x + 2
y = -3x
Use substitution by plugging the second equation into the first.
-3x = x +2
Subtract x from both sides to combine the variables.
-4x = 2
Divide both sides by -4 to isolate the variable x.
x = 2/-4
Simplify.
x = -1/2
Plug x into one of the equations to find y.
y = (-1/2) + 2
y = 3/2
Plug x into the other equation to confirm your answer.
y = -3(-1/2)
y = 3/2
Your answer is: (-1/2, 3/2)
for each ordered pair determine whether it is a solution to 4x-7y=19
Answer:
No Solution
Step-by-step explanation:
all the ordered pair doesn't satisfy the equation.
PLSSSS HELP CORRECT ANSWER GETS BRAINLIEST
Answers
1.A
2.B
3.C
Answer:
C
Step-by-step explanation:
I will mark as the brainiest if you get this correct
thx so much xxx
4. David makes $ 16,000 a year. He gets paid SEMIMONTHLY (24 times a year). What is the amount
per pay?*
Answer:
$384,000
Step-by-step explanation:
Answer: Well if we have to round up i would say he makes about 6660.60 dollars a day
If there are any answer choices maybe i could help a bit morec
Step-by-step explanation:
What is the distance from A(-3, 6) to B(4, -3)?
\/~~32
\/~~-32
\/~~10
\/~~130
Answer:
D) √130
The distance of the given points
AB = √130
Step-by-step explanation:
Explanation:-
Given points are A(-3,6) and B( 4,-3)
The distance formula
AB = [tex]\sqrt{x_{2}-x_{1})^{2} +(y_{2} -y_{1} )^{2} }[/tex]
AB = [tex]\sqrt{(4-(-3))^{2} +(-3-6)^{2}[/tex]
AB = [tex]\sqrt{(7)^{2} +(-9)^{2} }[/tex]
AB = [tex]\sqrt{49+81}[/tex]
AB = √130
HELP PLS ASAP i’ll mark as brainliest if correct !
help me just onen question
Answer:
maybe 58 im not sure sorry
Step-by-step explanation:
Answer:
yeet
Step-by-step explanation:
please help on this
Answer:
Try the first one but I think i that it
Step-by-step explanation:
Hope that helps
What is the slope of the line
represented by 5x – 7y = 9?
Answer:
5/7.
Step-by-step explanation:
Convert to slope-intercept form:
5x – 7y = 9
Subtract 5x from both sides:
-7y = -5x + 9
Divide through by -7:
y = (-5/-7) x + -9/7
y = 5/7 x - 9/7
The slope is 5/7.
Can someone please help I’ll mark you the brainiest
Answer:
try photo math it's meant for this kind of stuff
MONEY Claudio went for a walk. While he was walking, $1.35 fell out of his pocket. When he returned home, he counted his money and had $2.55 left. Write and solve an equation to find how much money was in Claudio’s pocket when he started his walk.
Answer:
3.9 that's how much he had
Answer:
He had $3.90 at the start of his walk.
Step-by-step explanation:
To find out how much money he had before his walk, you would take 2.55 + 1.35 and that you give you 3.9. But since we are dealing with money, you need to have the 0 at the end. So he started with $3.90 when he started his walk.
A 180 foot length of fence is placed around a three-sided animal pen. Two of the sides of the pen are 72 feet and 78 feet. Does the fence form a right triangle?
Answer:
Yes
Step-by-step explanation:
Length of the third side
[tex]180-(72+78)=30\ \text{ft}[/tex]
The hypotenuse is always the longest side of a right triangle.
So, the hypotenuse here is [tex]c=78\ \text{ft}[/tex]
[tex]a=72\ \text{ft},b=30\ \text{ft}[/tex]
[tex]c=\sqrt{a^2+b^2}\\\Rightarrow c=\sqrt{72^2+30^2}\\\Rightarrow c=\sqrt{6084}\\\Rightarrow c=78\ \text{ft}[/tex]
The Pythagoras theorem applies so the fence does form a right triangle.
Work out the size of angle x
Simplify the following
16a^2b^3c^6/48ab^5c^6
Answer:
a/3b^2
Step-by-step explanation:
16a^2b^3c^6/48ab^5c^6
the c^6 cancel out, then simplify a^2 and a: 16a^2b^3/48ab^5 = 16ab^3/48b^5
Then divide 48 and 16 you get 3 16ab^3/48b^5 = ab^3/3b^5
And lastly, simplify b^3 and b^5 ab^3/3b^5 =
a/3b^2
Fractions easy.
I just need answer for c and d
Answer:
i think C is 27 1/2 and D is 2 1/22 i dont know though let me know if its wrong
Step-by-step explanation:
i just turned them into mixed numbers
Solve the system of linear equations using Substitution
5x + 2y= 9
y = -x-3
Answer:
(5, -8)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Equality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
5x + 2y = 9
y = -x - 3
Step 2: Solve for x
Substitution
Substitute in y: 5x + 2(-x - 3) = 9[Distributive Property] Distribute 2: 5x - 2x - 6 = 9Combine like terms: 3x - 6 = 9[Addition Property of Equality] Add 6 on both sides: 3x = 15[Division Property of Equality] Divide 3 on both sides: x = 5Step 3: Solve for y
Define original equation: y = -x - 3Substitute in x: y = -5 - 3Subtract: y = -8A class is made up of 12 boys and 13 girls. What percent of the class is boys?
Answer:
12/13 or 92.31%
Step-by-step explanation:
Answer:
48%
Step-by-step explanation:
So, we have to find what percentage is 12 out of the whole thing so:
We add the boys and the girls together to get the whole thing:
12 + 13 = 25
Then we turn it into a fraction:
12/25 = 48/100
So, 48% of the class is boys