Answer:
$400
Step-by-step explanation:
450-50=400
Answer:325
Step-by-step explanation: Start off with 150, 150-225=-75 -75-50=-125 -125+450=324 Positive
-
Which system of equations has the solution shown in the graph?
A.y=-5+1 and y=-x+5
B.y=5x+1 and y=-x-5
C.y=5x-1 and y=-x+5
D.y=-5x-1 and y=-x-5
Answer:
C. y = 5x - 1 and y = -x + 5
Step-by-step explanation:
These two are the only sets that graph correctly as shown in the image.
People with O-negative blood are universal donors. That is, any patient can receive a transfusion of O-negative blood. If three people randomly arrive to donate blood at a blood drive, what is the probability that at least one of them is a universal donor?
Answer:
Probability of at least 1 out of 3 being O-negative = 20.1%
Note: The question is incomplete. A similar question is given below:
People with type O-negative blood are universal donors. That is, any patient can receive a transfusion of O-negative blood. Only 7.2% of the American population have O-negative blood. If we choose 10 Americans at random who gave blood, what is the probability that at least 1 of them is a universal donor?
Step-by-step explanation:
Probability of O-negative blood in the population = 7.2% or 0.072
Probability of not being O-negative = 1 - P(O-negative) = 1 - 0.072 = 0.928
Using the multiplication rule to determine the probability of 10 people not being O-negative
Probability of 10 not negative = (P(not O-negative)¹⁰ = (0.928)¹⁰ = 0.4737
Hence, probability of at least 1 being O-negative = 1 - P(not O-negative) = 1 - 0.4737 = 0.5263
In percentage, P(at least 1 out of ten being O-negative) = 52.63%
Given 3 random donors
Probability of 3 not negative = (P(not O-negative)³ = (0.928)³ = 0.7991
Hence, probability of at least 1 being O-negative = 1 - P(3 not O-negative) = 1 - 0.7991 = 0.2009
In percentage, P(at least 1 out of 3 being O-negative) = 20.1%
Which expression is equivalent to the one below?
(20 x 96) = 181
Answer:x
=1.023211
Step-by-step explanation:
What is the answer to the image below?
a
b
c
d
The answer is c.-3x -y =3
Answer:
-3x - y = 3
Step-by-step explanation:
y = -3x - 3
Solve for inequality’s. Show your work.
(3х – 2y = 14
( 2x + 2y = 6
Find the unit rate $15.75 for 7 pieces of gum
answer 0.44 7/15.75
please give me brainist
Answer: 2.25
hope it helped I divided 15.75 by 7
Can I have Brainliest?
Step-by-step explanation:
Did she solve the problem correctly? Yes. She solved the problem correctly. No. She multiplied the dividend by the divisor instead of finding the reciprocal. No. She multiplied the denominators instead of finding a common denominator. No. She multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor
Answer:
last one
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
GOOD LUCK!!!
What is the unit rate for miles per gallon?
Answer:
24 to 6
Step-by-step explanation:
Answer:
the first answer is right
Please help! Please explain what a integer exponent means and what’s the answer
Answer:
Number 4
Step-by-step explanation:
Using the rule of radicals/ exponents
[tex]\sqrt[n]{x^{m} }[/tex] ⇔ [tex]x^{\frac{m}{n} }[/tex]
An integer is a whole number including negative numbers and zero
Z = { ..... - 3, - 2, - 1, 0, 1, 2, 3, .......... }
Consider each in turn using the above rule
(1)
[tex]\sqrt[4]{x^{9} }[/tex] = [tex]x^{\frac{9}{4} }[/tex] ← exponent is not an integer
(2)
[tex]\sqrt[10]{x^{12} }[/tex] = [tex]x^{\frac{12}{10} }[/tex] ← exponent is not an integer
(3)
[tex]\sqrt[12]{x^{18} }[/tex] = [tex]x^{\frac{18}{12} }[/tex] ← exponent is not an integer
(4)
[tex]\sqrt[5]{x^{10} }[/tex] = [tex]x^{\frac{10}{5} }[/tex] = x² ← exponent simplifies to an integer
Joe bought a box of laundry detergent that contains 195 scoops. Each load of laundry uses 2.5 scoops. How many loads of laundry can he do with this one box? The box of detergent was $19.99. How much is he paying for each load that he washes? Round to the nearest hundredths place.
Answer:
-Joe can do 78 loads of laundry with this one box.
-He is paying $0.25 for each load that he washes.
Step-by-step explanation:
To determine the number of loads of laundry that Joe can do with this one box, you have to divide the total amount of scoops in a box by the amount of scoops that each load of laundry uses:
195/2.5=78
This means that Joe can do 78 loads of laundry with this one box.
Now, to find the amount that he is paying for each load that he washes, you have to divide the cost of the box of detergent by the amount of loads of laundry you can do with one box:
19.99/78=0.25
According to this, he is paying $0.25 for each load that he washes.
describe the error in this problem. What would you do differently?
(4x^3 y^7)^3
=12x^9 y^21
Answer:
4 was multiplied by 3; instead the 4 should've been raised by the power of 3.
Step-by-step explanation:
For my analysis I am assuming that the exponent on the first figure is only on the variable.
(4x^3 y^7)^3
Distribute the exponent on the parentheses to all exponents inside of the parenthesis.
((4^3) ((x^3)^3) ((y^7)^3))
64(x^9)(y^21)
The error in the problem therefore, is that 4 was multiplied by 3 instead of raised by the power of 3 (4(4)(4)).
Think about the graphs of the equations in the following system.
x² + y² =2
y = 2x2 – 3
Which of the following describes the system?
Answer: the answer would be a
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Edge 2020
please helpppppppppp
Answer:
75
Step-by-step explanation:
$15 x 5hrs = $75
In order for the data in the table to represent a linear Function with a rate of charge of +5. What must be the value of a?
Answer:a=18
Step-by-step explanation:
Use the information given to enter an equation in standard form.
Slope is 6/7 and (2, 4) is on the line.
Answer:
es a igpiia2223l
Step-by-step explanation:
**WILL GIVE BRAINLIEST**
Example 2: Leonardo saw the new sound system he wanted for $2623.95, including taxes. He had to buy it on
credit and had two options:
-
Use his new bank credit card, which has an interest rate of 14.5% compounding daily (Because the this
credit card is new, he has no outstanding balance from the previous month)
Apply for the store credit card, which offers an immediate rebate of $100 on the price, but has an interest
rate of 19.3%, compounded daily.
As with most credit cards, Leonardo would not pay any interest if he paid off the balance before the due date on
his first statement. However, he cannot afford to do this. Both cards require a minimum monthly payment of 2.1%
on the outstanding balance, but Leonardo is confident that he can make regular payments of $110.
Answer:
assuming 30 day months:
Leonardo can pay up to $110 per month
credit card
daily interest = 14.5% / 360 = 0.040278%
monthly interest = (1 + 0.040278%)³⁰ - 1 = 1.2154%
I prepared an amortization schedule using an excel spreadsheet
It will take Leonardo 29 months to completely pay off his debt. The last payment will only be $37. Leonardo will be able to save $65 on his last payment if he uses his credit card.
store credit
daily interest = 19.3% / 360 = 0.05361%
monthly interest = (1 + 0.05361%)³⁰ - 1 = 1.6209%
principal will be $100 lower, $2,523.95
I prepared an amortization schedule using an excel spreadsheet
It will also take Leonardo 29 months to completely pay off his debt, but the last payment will be $102, which is higher than the $37 that he would need to pay using a credit card.
can you guys help me please?
Answer:yes
Step-by-step explanation:
What is the slope of the line passing through (-8, 7) and (5, -2)?
Answer:
-.6923076923 or -9/13
Step-by-step explanation:
I used my calculator.
A pedestrian walks at a rate of 6km per hour east. The wind pushes him northwest at a rate of 13 km per hour. Find the magnitude of the resultant vector.
Answer:
The magnitude of the resultant vector is 11.53 km/h
Step-by-step explanation:
Please find the attached image for explanation;
are perfect squares closed under subtraction
Answer:
No i dont think so i think they are closed under a square rooting i am sos so so so so sorry if im wrong
-17 + 28 does anyone know the answer
Answer:
11
Step-by-step explanation:
-18+28 = 28-17 = 11
hope this helps
11
-17 + 28
28 has a greater value so we subtract 17 from it.
28 - 17
The answer will be positive because the greater number (28) was positive.
11
Jacob bought a book that cost $11.95 and magazines that cost $4.95 each. Isabella bought a book that cost $15.79 and magazines that cost $3.99 each. Jacob spent the same amount or less money than Isabella. Write an inequality to represent this real world problem.
Answer: 16.90 ≤ 19.78
Step-by-step explanation:
if this is what you mean, then here you go!
2. Julio is playing a trivia game. On his first turn, he lost 100
points. On his second turn, he lost 75 points. On his third turn, he
lost 85 points. Write a sum of three negative integers that models
the change to Julio's score after his first three turns.
Answer:
-260
Step-by-step explanation:
-75+-85+-100
In how many ways can 12 people be seated on stage:
a) using all 12 people
b) using only 7 people
please help! i will give best answers braniliest!
Answer:
a
Step-by-step explanation:
because there is 12 people
Answer:
A
Step-by-step explanation:
There are 12! Since 90 degree rotations of the seats are technically equivalent, so just divide by 4, which yields 12!
what is 0.181818 as a fraction?
Answer:
the answer is 2/11
Step-by-step explanation:
hope it helps :)
Using the formula for circumference, =×, choose the answer that most accurately represents the circumference of the circle. Use 3.14 for pi. 5.6 cm 5.652 cm 5.7 cm 5.65 cm __________________________ 1.8 cm
Answer:
Step-by-step explanation:
Circumference of a circle = πd
d is the diameter of the circle
Let us assume the diameter to be 1.8cm
Substitute into the formula;
C = 1.8π
C = 1.8(3.14)
C = 5.652 cm
Hence the circumference of the circle is 5.652cm
Identify the graph of the point G(0, −1, −3) in three-dimensional space.
Answer:
In 3 dimensions, we use the notation for points (x, y, z)
Then the point:
(0, -1, -3)
has:
x = 0
y = -1
z = -3
In a 3 dimensional space, the rectangular coordinates are as follows.
The one that goes up is Z
The one that goes to the right is X.
The one that "comes out" or is normal to the page, is Y.
Below you can see the point in a 3D-space:
Where: Blue = Z
Green = Y
Red = X
which diagram shows plane PQR and plane QRS intersecting in only QR
In this diagram, points Q and R are found in both planes. Line QR is the result of intersecting the two planes together.
For something like diagram B, point Q is only found on one of the planes (the horizontal one) and not the other plane (the vertical one). So we can rule choice B out. The other choices are eliminated for similar reasoning.
Determine which relation is a function.
Answer:B
Step-by-step explanation: The X coordinates can not repeat. Each X coordinates has to be a different number.
Anyone help me out plzz
Answer:
-4 :)
Step-by-step explanation:
2([tex]\frac{1}{2}[/tex][tex])^{3}[/tex] + 3[tex]\frac{1}{4}[/tex] - 5 = -4