Answers
Answer:
-2
Step-by-step explanation:
Related Questions
Keith bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 30 cards left. How many cards did Keith start with?
please help!!!
Answers
Answer:
52 cards
Step-by-step explanation:
call the amount he started with " x "
then he bought 8 cards
so the new equation is
x+8
then he lost half of his cards
so now the equation is
(x + 8 )/2
that amount to 30 cards as per what is given in the problem
so now the equation is
( x + 8 )/2 = 30
solve using inverse operations and simplifying
( x + 8 )/2 = 30
*2 *2
x + 8 = 60
-8 -8
x = 52
what is the value of 2/3 rs if r= -6/7 and s= --3/10
Answers
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[tex]r = - \frac{6}{7} \\ [/tex]
[tex]s = - \frac{3}{10} \\ [/tex]
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[tex] \frac{2}{3} rs = \frac{2}{3} \times ( - \frac{6}{7} ) \times ( - \frac{3}{10} ) = \\ [/tex]
[tex] \frac{3 \times 2 \times 3 \times 2}{3 \times 7 \times 5 \times 2} = \frac{2 \times 3}{7 \times 5} = \frac{6}{35} \\ [/tex]
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Heather bought a shirt on sale for 45% off the regular price of $22.60. What was the sale price of the shirt not including tax?
Answers
Hi! I believe your answer is $10.17 because 45% of 22.60 is 10.17. I hope this helps you! Good luck and have a great day. ❤️ (Stream "Heather" by Conan Gray!)
answer 2 questions about equations A and B.
A. 5=-2(x-1)
B. 5=-2x+2
1. how can we get equation B from equation A?
A. rewrite one side (or both) by combining like terms
B. rewrite one side (or both) using distributive property
C. multiply or divide both sides by the same non zero constant.
D. multiply or divide both sides by the same variable expression.
2. based on the previous answer, are the questions equivalent? in other words do they have the same solution?
Yes or No
Answers
Answer:
B.
Step-by-step explanation:
I'm not sure how to answer the 2. question
Which phrase matches the algebraic expression below? (1 point)
3(x + 7) + 10
Answers
Answer:
Add 10 to three times the value of x minus 7.
Step-by-step explanation:
Answer:
Three times the difference of X and seven plus ten
Step-by-step explanation:
Which is equal to –214°?
Answers
Answer:
B
Step-by-step explanation:
Convert from degrees to radians using ratio pi/180. -107pi/90 radians would be the answer. Also edg. 2020
-107pi/90 radians is equal to -214degree.
We have to determine which is equal to –214°
Convert from degrees to radians using the ratio.
How to convert a degree into a radian?
To convert the value of the angle in degree, to its equivalent radians, we need to multiply the given value by π/180.
pi/180.
-107pi/90 radians is equal to -214degree
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Which of the following is the radical expression of?
Answers
Answer:
The third answer
Step-by-step explanation:
Remember power over root and the 2 would not be under the root.
Answer:
the third one
Step-by-step explanation:
Bone-shaped treats are 5 for $3.50 at Shelley’s store and Sarah wants to buy 12. She set up and solved this proportion to find how much they would cost. Describe her error and find the correct solution.
5
3.5
=
12
x
3.5x = 60
x = $17.15
Answers
Answer:
Sarah multiplied the denominator by the denominator and the numerator by the numerator instead of finding the cross products. The equation should be 5x = 42, so the cost should be $8.40.
Step-by-step explanation:
Find the values for x so that the perimeter of this rectangle is no greater than 150 centimeters
Answers
express the polynomial 5x^2+8x^5-3^3+4-9x in standard form
Answers
Answer:
The answer is 8x^5 + 5x^2 + 9x − 31
hello please help will give brainliest!
Answers
Answer:
420
Step-by-step explanation:
Answer:
A. 420
Step-by-step explanation:
nice
Graph the function y = -1x +3.
Answers
Answer:
draw a point at the (0,3). That is your y intercept and now go down one and over to the right 1 time. Continue this process and connect the dots
that is your line
Step-by-step explanation:
what is the value of x^2+4 for x=5
Answers
Answer:
25+4=29
thats your answer
PLEASE MARK AS THE BRAINLIEST
Answer:
29
Step-by-step explanation:
x^2+4
Let x= 5
5^2 +4
25+4
29
Why can't a whole number be irrational? Please dumb it down for me
Answers
Answer and Step-by-step explanation:
A whole number isn't irrational because it is a whole number. Confused? Most likely.
A whole number is any of the numbers {0, 1, 2, 3, ...} etc. There is no fractional or decimal part. And no negatives. Example: 5, 49 and 980 are all whole numbers.
An Irrational Number is a real number that cannot be written as a simple fraction. Irrational means not Rational. The irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.
These are both real numbers because they don't go through the 4th wall (of science/math)
Imaginary numbers would use i.
Please solve this system : x+y+z=-3 3y-z+\=4 2x-y-2z=-5
Answers
What are the possible degrees for the polynomial function?
degrees of 6 or greater
even degrees of 6 or greater
degrees of 5 or greater
odd degrees of 5 or greater
Answers
Answer:b
Step-by-step explanation:on edge2020
Find the reciprocal of 10 1/2!
Answers
Answer:
2/21
Step-by-step explanation:
10 1/2=21/2 and then flip it
What is the place value of 7 in 0.724 rounded.
Answers
The place value of 7 in 0.724 = 7 tenths or 7/10 or 0.7
The place value of 2 in 0.724 = 2 hundredths or 2/100 or 0.02
The place value of 4 in 0.724 = 4 thousandths or 4/1000 or 0.004
Therefore , the place value of 7 in 0.724 is 7 tenths or 7/10 or 0.7 ( as all are the same ) .
(9, - 4) and (5, 3) In simplest radical form
Answers
Answer: 33
Step-by-step explanation:
(9,-4) and (5,3)
=9*5+(-4)*3
=33
Find the difference: 4.203 - 0.01
Answers
Answer:
4.193
Step-by-step explanation:
you line up the decimals then subtract to get 4.193
There is a sidewalk of width x around a rectangular garden. If the garden measures twenty-feet by thirty-feet, then the combined area of the garden and sidewalk is
Answers
Answer:
Area = 200 + 50 + x
Step-by-step explanation:
Given
Length = 20
Width = 30
Side Walk = x
Required
Determine the area.
To do this we need to get the new worth and length by adding the length of the sidewalk.
This gives:
Length = 20 + x.
Width = 30 + x
So, area becomes.
Area = (20 + x)(30 + x)
Area = 600 + 20x + 30x + x²
Area = 200 + 50 + x²
What is the answer in a short sentence
Answers
Answer:
HI
Step-by-step explanation:
841/4 how much is it
Answers
Answer:
210.25
Step-by-step explanation:
841/4=210.25
Find DF
D
20
E 10 F
DF =
Answers
Answer:
30
Step-by-step explanation:
it is right
bc DE is 20 and EF is 10, if DF is the entire segment, then you would add 20 & 10, to get 30.
Mr. Martin bought a microwave that was originally priced at $225. Using a coupon, he received a 30% discount on the microwave. What is the total price Mr. Martin will pay at the register if there is a 6% sales tax. Round your answer to the nearest cent if necessary.
Answers
Answer: 125 I think
Step-by-step explanation:
write an equation for the line below
Answers
Answer:
y = -X + 4 is the equation for the line below
Rewrite the following equation in slope-intercept form.
17x + 18y = -6
Answers
Answer:
y= -17/18x-1/3
Step-by-step explanation:
The slope-intercept form of the equation is y = (-17/18)x -1/3.
What is linear equation?Equations whose variables have a power of one are called linear equations. One example with one variable is where ax+b = 0, where a and b are real values and x is the variable.
Given:
A linear equation 17x + 18y = -6.
To find the slope-intercept form:
Simplifying,
17x + 18y = -6
18y = -6 -17x
y = -17/18x -1/3
Therefore, y = (-17/18)x -1/3 is the slope-intercept form.
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The length of a new rectangular playing field is 2 yards longer then double the width. If the perimeter of the rectangular playing field is 322 yards, what are its dimensions?
Answers
Answer:
Step-by-step explanation:
First, we want to take the information we have and turn it into an equation, where x is our unknown dimension. For this problem, it would be better if x was equal to the width.
Let's write out the equation:
X is the width, 2x + 2 is the length, and we are multiplying both by two since there are two sides of the field. It will all equal to 322, because that is the perimeter.
2*x + 2(2x +2) = 322
Now, let's solve:
2*x + 2(2x + 2) = 322
2x + 4x + 4 = 322
6x + 4 = 322
6x = 318
x = 318 ÷ 6
x = 53
The width is 53 yards. To find the length, we multiply 53 by two and add two.
53 * 2 + 2 = 106 + 2 = 108 yards, as the length
I need help ASAP with this question
Answers
To work out this you need to do the change in y/ the change in x.
So we take 2 points you are given in the table- e.g (1,5) and (2,1)
So the change in y is from 5 to 1 so it is -4 and the change in x is from 1 to 2 so is 1.
Then you have -4/1 which is just -4.
Let me know if you have any questions!
At this point I’m just going to start singing songs ! For the caption
Answers
Answer:
[tex]the \: value \: is \:0.5 \: i.e\: option\:b[/tex]
Answer:
.50
Step-by-step explanation:
I am pretty sure