Answer:
-5
Step-by-step explanation:
11 x -5 = -55
-55 x -5 = 275
Answer:
i'm also trying to do this problem from delta math
Step-by-step explanation:
Robert and his younger sister are selling gift wrap to raise funds for the middle school band. Robert's sales are 2.5 times his sister's sales. Their total sales together can be represented by the equation x+2.5x=63 . Which of these statements are true? Choose ALL that are correct. A Robert's sales are represented by x when solving 3.5x=63 . B Robert's sister's sales total $18.00. C Robert's sales are represented by x when solving 2.6x=63 . D Robert's sales total $25.20. E Robert's sister's sales are represented by x when solving 3.5x=63 .
Answer:
B. Robert's sister's sales total $18.00.
E. Robert's sister's sales are represented by x when solving 3.5x = 63 .
Step-by-step explanation:
Let
Robert sister's sales = x
Robert sales = 2.5 * x
= 2.5x
Total sales = Robert sister's sales + Robert sales
63 = x + 2.5x
63 = 3.5x
Divide both sides by 3.5
x = 63 ÷ 3.5
= 18
x = $18.00
Robert sales = 2.5x
= 2.5(18)
= $45.00
A. Robert's sales are represented by x when solving 3.5x=63 .
No
B. Robert's sister's sales total $18.00.
Yes
C. Robert's sales are represented by x when solving 2.6x=63 .
No
D. Robert's sales total $25.20.
No
E. Robert's sister's sales are represented by x when solving 3.5x = 63 .
Yes
I NEED HELP NOW PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! im gonna fail i swear help please now
what's 2+2 ?
Answer:
2+2 = 4
Step-by-step explanation:
ok so if u put 2 fingers up and you add 2 more, you get 4
bruv
work out the area of this semi circle
Answer:
39.27
Step-by-step explanation:
The area of a semi-circle is pi times the radius squared divided by 2. So basically standard area of a circle formula (pi times the radius squared) but then you add in the extra step of dividing it by 2.
The formula looks like this:
π × r² ÷ 2
The radius is half the diameter of the circle. So basically think of it as a line to the middle of the circle. Our diameter is 10, (the diameter is the entire length of the circle. It gives us this already. If you need diameter and only have the radius add the radius together twice or multiply it by 2 to get the diameter. Fun fact..?)
and it tells us to substitute pi for 3.142.
So, plugging our numbers in we get:
3.142 x 5^2 ÷ 2 = 39.275.
Cut out the 3rd decimal place (5) as it tells us to only include the first 2 decimal places, and we finally end up with 39.27.
Hope this helps and have a nice day!
What is the answer to this ??
Answer:
the first one
Step-by-step explanation:
they meet on (-3,-$4) so just plug the numbers in
Please help super easy question, just want to confirm I have the right answer
Answer:
L to M is 90 degrees
Step-by-step explanation:
Hope this helps!
Answer:
180
Step-by-step explanation:
i straight line is equal to 180
What is the slope of the line that passes through the points (3,-5) and (1,-5)? In simplest form.
Answer:
Step-by-step explanation:
The way to find slope is by y2-y1/x2-x1 which gives you slope ,but if you just want the answer its zero.
.
Marshall gave the cashier $100 to pay for 4 new video games. The cashier gave him $4.08 in change. Each video game cost the same amount.
What is the cost in dollars and cents for each video game?
PLZZZZ HELP
Answer:
I would say it's $23.98
Step-by-step explanation:
If you do 100-4.08, you get 95.92 and since there's 4 video games, divide 95.92 by 4 and you get 23.98
Answer:
$23.98 or 2398 cents
Step-by-step explanation:
If the cashier gave $4.08 back, that means that he spent 100-4.08 on the 4 games.
$100 = 4 games + $4.08
4 games = $95.92
$95.92/4 = $23.98
Hope That Helps.
What are the slope and the y-intercept of the linear function that is represented by the equation 8x-2y = 57
5
The slope is 2, and the y-intercept is 4.
5
The slope is 2, and the y-intercept is 4.
5
The slope is 4, and the y-intercept is 2.
5
The slope is 4, and the y-intercept is 2.
Answer:
slope(m)=4 and
y-intercept(c)=-5/2
Step-by-step explanation:
here,8x-2y=5
reducing it into slop intercept form we get,
2y=8x-5
or,y=8/2x+(-5/2)
or,y=4x+(-5/2)
comparing it with y=mx+c we get,
slope(m)=4 and
y-intercept (c)=-5/2
Which of the following is closest to 1/2 + 1/3?
Answer:
c
Step-by-step explanation:
1/2= 0.5, 1/3= 0.33 ; 0.5+ 0.33= 0.83 or 0.8
What are the zeros of the polynomial function?
Answers option's
-15 and 4
-4 and 15
10 and -6
-10 and 6
15/3 = ?/1. what's the missing unit rate
Answer:
5
Step-by-step explanation:
15/3 is the same as 5 since 5*3 is 15
Write an equivalent expression by distributing the "-−" sign outside the parentheses:
10m-(3.3n+1.8)
Answer:
10m - 3.3n - 1.8
Step-by-step explanation:
10m -(3.3n + 1.8)
10m - 3.3n - 1.8
Hope this helps and I hope u have an Amazing day!!
Dr. Concha Gómez is an Italian, Cuban American who received a Ph. D. in Mathematics at the University of California at Berkeley. Dr. Gomez currently works at the University of
Wisconsin where she teaches her students how to find the solutions to a quadratic function. To start, she asks her students to find the factors for the quadratic expression,
7z^2 -38z + 15.
Select the factors of this quadratic expression.
Answer:
7z - 3 and z - 5
Step-by-step explanation:
The factors of the given quadratic expression is (z-5((7z-5).
The given quadratic expression is 7z² -38z + 15.
What is the quadratic expression?An expression of the form ax² + bx + c, where a ≠ 0 is called a quadratic expression. In other words, any expression with the variables of the highest exponent or the expression's degree as 2 is a quadratic expression.
The given quadratic expression 7z² -38z + 15 can be solved as follows:
Using spitting middle term
7z² -35z-3z + 15
= 7z(z-5)-3(x-5)
= (z-5((7z-5)
Therefore, the factors of the given quadratic expression is (z-5((7z-5).
To learn more about the quadratic expression visit:
https://brainly.com/question/14083225.
#SPJ6
Which is the better value, 2 books for $18 or 6 books for $45? Explain. {hint: make two tables; compare} (1 pt.) RP.1.3 b a.2 books for $18 because each book costs $9 and 6 books for $45 because each book costs $9.50 b.2 books for $18 because each book costs $8 and 6 books for $45 because each book costs $9.50 c.6 books for $45 because each book costs $7.50 and 2 books for $18 because each book costs $9 d.6 books for $45 because each book costs $9 and 2 books for $18 because each book costs $9.50 answer fast please
Answer:
I am a little confused by your question but if you were getting less it would be the first but more would be the second
Step-by-step explanation:
Answer:
c. 6 for 45 b/c each costs 7.50 and 2 for 18 b/c each book costs 9
Step-by-step explanation:
If you divide the amount of money by the number of books then you will find how much each book costs individually. If you wanna spend less money per book, then you 6 books for 45 is a better deal
What is 5+5x•40 if x equals 5
Find the slope of two points (1,-5)(10,6)
Answer:
11/9
Step-by-step explanation:
Answer: 11/9
Step-by-step explanation:
The slope is found by the change in y over the change in x
(6-(-5))/(10-1)
Simplify:
11/9
What is 3% of 250 ?
.....
in a bag there are 10 balls numbered 1 to 10 A ball is picked at random find the probability of picking the following
(a) number 7
(b) an odd number
(c) an even number
(d) an prime number
Answer:
a) 1/10
b) 1/2
c) 1/2
d) 2/5
Step-by-step explanation:
Probability is the likelihood or chance that an event will occur.
Probability = Total event/Total sample space
Since there are ten ball in the bag numbered 1 to 10
S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
n(S) = 10
Total sample space = 10
a) If we are to get the probability of picking the number 7.
(E) = {7}
n(E) = 1
Event = 1
Pr(picking 7) = 1/10
b) a) If we are to get the probability of picking an odd number
(E) = {1, 3, 5, 7 , 9}
n(E) = 5
Event = 5
Pr(an odd number) = 5/10 = 1/2
c) a) If we are to get the probability of picking an even number
(E) = {2, 4, 6, 8,10}
n(E) = 5
Event = 5
Pr(an even number) = 5/10 = 1/2
d) a) If we are to get the probability of picking prime
(E) = {2, 3, 5, 7}
n(E) = 4
Event = 4
Pr(prime) = 4/10 = 2/5
Which is bigger 67% or 3/5 Please help me
Answer:
67%
Step-by-step explanation:
This is because 67% is basically 67/100 as a fraction and 3/5 is only 60%, all you need to know is the facts about fraction to percentage
Is A triangle with side lengths 24,32, 42 a right angle?
Answer:
No its not a right angle.
For the system, what is the y-value? -5x + 3y =10 -x + 6y = 4
Answer:
The answer i believe is y=-10/3 - 4x/3
Step-by-step explanation:
Please help me please and thank you
Answer:
wouldn't they both be 88
I'm not sure if that's correct though
Answer:
x = 88
y = 88
Step-by-step explanation:
66 + 26 + x = 180 (collect like terms)
92 + x = 180 (subtract 92 on both sides)
x = 88
y = x
y = 88
They are vertical so their measures are the same.
Hope this helps ya!!
1. Calculate the value of x in the following diagram. 53 - Y IN Q 5x 18
Answer:
x = 7
Step-by-step explanation:
QY = 5x
YZ = 18
QZ = 53
Thus:
QY + YZ = QZ (segment addition postulate)
5x + 18 = 53
5x = 53 - 18 (subtraction property of equality)
5x = 35
Divide both sides by 5
x = 7
3n - 5 =22 what is the value of n
Answer:
n = 9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
3n - 5 = 22
Step 2: Solve for n
Add 5 to both sides: 3n = 27Divide 3 on both sides: n = 9I have to find x when y=40
Answer:
about 13 and a third
Step-by-step explanation:
4 3/7 + 6 1/5 = ?
Please EXPLAIN!!!
I'm too lazy and when I lazy I not so smart ;)
Answer:
Welp here is the answer to your question, 372/35 in exact form. in mixed number form it is 10 22/35
Can anyone please help me with this multiple choice for 10 points! ANSWER ONLY IF YOU KNOW! Question 4
Answer:
question 4.
D (x-10)
Step-by-step explanation:
question 4.
x^2 - 8x - 20
(x -10)(x+2)
x² + 8x - 20 [-20 = -2 × 10]
x² - 2x + 10x - 20 [8 = -2 + 10]
x(x - 2) + 10(x - 2)
(x + 10) (x - 2)
___________________________________________
A. x - 2
represents a factor
Please help! Will mark Branliest!
In Game 2, your score started at 2 and doubled every time. Two expressions below represent your score after 12 hits. Select both.
Answer:
B and D
Why are both of the answers to the last question correct?
An exponent is a short way to write repeated multiplication. So 212 means the same as 2 • 2 • . . . • 2 • 2.
PLEASE ANSWER THISSS
Answer:
78.5 ft
Step-by-step explanation:
You had the right answer
Hope you got the clarification you needed! :)
Brainliest pls
HELP ME PLEASEEEE!!I beg y’all
Answer:
For Ms Ortiz: 50 = 50x+30y
For Mr Donahue 45=30x+30y
C =Substitution
Answer:
Step-by-step explanation:
45 divided by 30=$1.50
x amount of rulers multiplyed by 1.50
45-55=10$
50 pencils for 10 bucks
50 divided by 10 =5
5 5 5 5 5 5 5 5 5 5
five pencils for five dollers one doller for one pencil
sorry for the spelling errors this is all i can do the rest is a bit tricky