Answers
Answer:
x=9
Step-by-step explanation:
8x+7=5x+34
3x+7=34
3x=27
x=9
Answer:
the answer is 9
Step-by-step explanation:
I took the test
Related Questions
Express each ratio as a fraction in its simplest form 6 minutes to 1 hour
Answers
Answer:
1:10
Step-by-step explanation:
1 hour is 60 minutes, so the ratio is 6:60.
To simplify, divide both sides by 6.
Thus, you get:
1:10.
Question and answer choices are attached. Please pick the right answer and explain/show work if possible. Thanks!
Answers
Answer:
Choice c. [tex]\sqrt{12}[/tex]
Step-by-step explanation:
Vectors
Suppose we have a vector v defined as
[tex]\vec v=a\mathvf{i}+b\mathvf{j}[/tex]
The magnitude of the vector is:
[tex]\mid\mid\vec v\mid\mid=\sqrt{a^2+b^2}[/tex]
On the other hand, the dot product of the vector by itself is:
[tex]\vec v\cdot\vec v=a*a+b*b=a^2+b^2[/tex]
Note the relation between these two operations is:
[tex]\mid\mid\vec v\mid\mid=\sqrt{\vec v\cdot\vec v}[/tex]
Since we are given:
[tex]\vec v\cdot\vec v=12[/tex], then:
[tex]\mid\mid\vec v\mid\mid=\sqrt{12}[/tex]
Choice c) [tex]\sqrt{12}[/tex]
Please help!! I’ll mark you as brainliest if correct
Answers
Answer:
n(n-1)/2 use this. U may check for 5
Xavier is half as old as Jessica. The sum of their ages is 63. How old is Jessica? (
Answers
Answer:
31.5
Step-by-step explanation:
Answer:
let their age be x and y
x=y.......1st equation
2
now,
product of their age
x+y=63
y +y=63 (putting the value of x=y/2)
2
3y =126
y=126
3
y=42
hence,
age of jessica is y =42.
Danielle makes the claim that when the polynomial x^2-3x-10 is divided by x-5, the remainder is 0. Use what you have learned about dividing polynomials to either verify that Danielle is correct or prove that she is incorrect. What arguments would you use to support your claim
Answers
Answer:
Daniel is correctStep-by-step explanation:
Given the polynomial P(x) = x^2-3x-10
To check that the remainder is zero if divided by x - 5, we will first have to equate x - 5 to zero and get x;
x - 5 = 0
x = 5
Then find P(5)
P(5) = 5^2 - 3(5) - 10
P(5) = 25 - 15 - 10
P(5) = 25-25
P(5) = 0
This shows that x - 5 is a factor of the polynomial since P(5) gave us zero according to the factor theorem
how do I find 2/3 of 12 slices of pizza eaten
Answers
Multiply 12 slices by 2/3:
12 x 2/3 = (12 x 2) /3 = 24/3 = 8
The answer is 8
Answer:
8
Step-by-step explanation:
12/3 = 4
4*2=8
(2 to the power -1 ÷ 5 to the power- 1)2 × -5/8 to the power -1
Answers
Answer:
-8
Step-by-step explanation
2 to the power of -1 = 0.5
5 to the power of -1 = 0.2
0.5/0.2 = 2.5
So,
(2.5)2 x -5/8 to the power of -1
-5/8 = -0.625
-0.625 to the power of -1 = -1.6
So,
(2.5)2 x -0.625
5 x -0.625
= -8
Answer:
-8
Step-by-step explanation:
(2^-1 ÷ 5^-1) = 5/2
(5/2) x 2 = 10/2 or 5
-5/8 ^-1 = - 8/5
5 x - 8/5 = -40/5 or -8
Hope its helpful ☺️
If z varies inversely as x^2, and z = 9 when x = 2/3, find z when x = 5/4
Answers
Answer:
Step-by-step explanation:
z varies inversely
so z=a/x^2
9=a/(2/3)^2
9=a/(4/9)
9=9a/4
a=4
z=4/x^2
z=4/(5/4)^2
z=4/(25/16)
z=64/25
If z varies inversely as x², it is given by the equation z = 4/x². When x = 5/4, z = 2.56
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
z varies inversely as x². Let k represent the constant of proportionality, hence:
z = k/x²
z = 9 when x = 2/3, hence:
9 = k / (2/3)²
k = 4
z = 4/x²
When x = 5/4:
z = 4 / (5/4)²
z = 2.56
If z varies inversely as x², it is given by the equation z = 4/x². When x = 5/4, z = 2.56
Find out more on equation at: https://brainly.com/question/2972832
#SPJ2
which decimal is less than 0.8 and greater than 0.02
A.0.81
B.0.46
C.0.86
D.0.006
Answers
Answer:
The decimal is 0.46
Step-by-step explanation:
Given
Less than 0.8
Greater than 0.02
Required
Determine the decimal
Let the decimal be x
Such that:
[tex]x < 0.8[/tex] and [tex]x > 0.02[/tex]
Rewrite as:
[tex]x > 0.02[/tex] and [tex]x < 0.8[/tex]
Rewrite as:
[tex]0.02 < x[/tex] and [tex]x < 0.8[/tex]
This can be merged to give:
[tex]0.02 < x<0.8[/tex]
From the list of given options, only 0.46 fall in this range because:
[tex]0.02 < 0.46<0.8[/tex]
So:
[tex]x = 0.46[/tex]
Joseph uses 1/5
cup of bananas for every
4/5 cup of apples to make a smoothie.
Enter the number of cups of bananas Joseph uses for 1 cup of apples.
Answers
Answer:5/5
Step-by-step explanation:
What is the ratio of students who dance to the total number of students?
Answers
Answer:
I'm sorry I don't know the ratio but the whole number of students is 164 and dance students is 43 i hope this helps if not im sorry i tried to help
Step-by-step explanation:
Directions: Convert the following equations from standard form to slope-intercept form.
10. 6x + 2y = 10
11. x + 2y = 4
Gina Wilson (All Things Algebra" LLC], 2012-2017
12. x + y = -3
13. -2x + 3y = -6
Answers
Answer:
in order
y = -3x + 5
y = 1/2(x) + 2
y = -x - 3
y = 2/3(x) - 2
Step-by-step explanation:
slope-intercept form is y= mx + b
10. 6x + 2y = 10
2y = -6x + 10, subtract 6x from both sides
y= -3x + 5, divide both sides by 2
11. x + 2y = 4
2y = x + 4, subtract x from both sides
y = 1/2(x) + 2, divide both sides by 2
12. x + y = -3
y = -x - 3, subtract x from both sides
13. -2x + 3y = -6
3y = 2x - 6, add 2x to each side
y = 2/3(x) - 2, divide both sides by 3
What is the decimal equivalent of 3 over 9?
a. 0 point 2 bar.
b. 0 point 3 bar.
c. 0 point 4 bar.
d.0 point 5 bar.
Answers
Answer:
the answer is b)0.3.......
Answer:
Concept: Conversions
[tex] \frac{3}{9} = \frac{1}{3} = 0.33[/tex]Give Brainlist(a) Solve for x.
(b) Solve for M.
y=Mx + b
Answers
Answer:
a) [tex]x=\frac{y}{m}-\frac{b}{m}[/tex]
b) [tex]m=\frac{y}{x}-\frac{b}{x}[/tex]
Step-by-step explanation:
We are given the equation:
y = mx + b
Part A:[tex]y=mx+b\\\\mx+b=y\\\\mx+b-b=y-b\\\\mx=y-b\\\\\frac{mx=y-b}{m}\\\\\boxed {x=\frac{y}{m}-\frac{b}{m}}[/tex]
Part B:[tex]y=mx+b\\\\mx+b=y\\\\mx+b-b=y-b\\\\mx=y-b\\\\\frac{mx=y-b}{x}\\\\\boxed{m=\frac{y}{x}-\frac{b}{x}}[/tex]Hope this helps!
Is -9/4 rational. Please I need this now the thing said 20 characters long so I’m just gonna type. The best answer gets brainliest ig
Answers
Answer:
no -9/4 is irrational
Step-by-step explanation:
vacsusvvsjshsvsh plz give brainliest
nine divide by the quantity x plus y
Answers
7(x + 9 ) - x
Explanation:
the quantity x plus 9 is written x + 9 , plus meaning add.
times the quantity means multiply the quantity x + 9 multiplied by 7
this is written 7(x + 9 )
finally minus x means subtract x
putting it all 'together' we get 7(x + 9 ) - x
7th grade math help me please
Answers
Answer:
27-t times 3
27- 6 times 3
27-18
9
A large pizza at a restaurant has the dimensions shown. Find the area of the pizza. Use4 for T. 14 in. 22 Why does it make sense to use as the estimate for T? Explain your reasoning. PLEASE HELP
Answers
You need to figure out the total area of the pizza (a circle) and then divide it by the area of each slice to get the number of slices of pizza. By the way, area should be in square units, so I assume you mean 14.125 in2.
So, Area of a circle = πr2
Diameter = 2 x the radius (r). So, if the diameter = 14 in, 14 in = 2 r, and dividing both side by 2, r = 7 in.
Area of a circle = Π (7 in)2 = 153.938 in2
Now, divide this total area of the pizza, 153.938 in2, by the area of one slice, 14.125 in2.
153.938 in2/14.125 in2 = 10.898 slices or about 11 slices of pizza
5. $115 coat; 9.5% tax
Answers
Answer:
The total would be 125.93.
The ratio of green houses to white houses in Queens is 5 to 7. There are 63 white houses, How many green houses are there?
Answers
Your welcome my guy
what's 4 ÷ 9 and 9 ÷ 4 write each quotient as either a fraction or mixed number help me
Answers
Is the equation y=4x+1 proportional? *
Yes
No
Answers
Answer:
No
Step-by-step explanation:
y = 4x + 1 is not a direct variation. Direct variations have the form y = kx. So y = 4x would be a direct variation (k=4), but not y = 4x+1
The price of blackberries at a farm is $1.56 per pound. Which equation can be used to determine c, the total price of n pounds of blackberries? (10 points)
a
c = 1.56n
b
c equals 1.56 over n
c
c = 1.56 + n
d
c = 1.56 − n
Answers
Answer:
A. c = 1.56n
Step-by-step explanation:
Hope this helps!
Stealing your points like how you stole mine! +*♡
Don't answer someone's question with some nonsense and then delete it; especially when I spent over an hour on that one question. I will surely delete my answers after this and still have my 30 points...
don't reap what you sow :)
You can search that up if you don't even know what that means.
Have a nice day! +*♡
Hope this helped.
you roll a single die numbered from 1 to 6 twice. what is the probability of rolling a 6 the first time and an odd number second
Answers
Answer:
1/12
Step-by-step explanation:
Since the two rolls are independent, then the chance of getting a 6 in the first and an odd number in the second is obtained by multiplying the two probabilities.
1/6 is the probability of rolling 6, 1/2 is the probability of rolling an odd number
1/6 times 1/2 is 1/12
In a survey of school students, 64 had taken mathematics course, 94 had taken chemistry course, 58 had taken physics course, 28 had taken mathematics and physics, 26 had taken mathematics and chemistry, 22 had taken chemistry and physics course, and 14 had taken all the three courses. Find how many had taken one course only by using Venn diagram.
Answers
Answer:
106
Step-by-step explanation:
From the information given :
Let:
Mathematics = M
Physics = P
Chemistry = C
n(M) = 64 ; n(C) = 94 ; n(P) = 58
All three (n(MnCnP) = 14
Kindly check attached picture for clearer explanation :
Number of students who took only one subject :
(24 + 22 + 60) = 106
Estimate the number of pieces Sharon will have if she divides 15 1/3 yards of fabric into 4 4/5 yard lengths.
Answers
Answer:
about 3 of them
Step-by-step explanation:
15 1/3 divided by 4 4/5 = 3 7/36
58 POINTS PLEASE HELP ASAP
Question 3 (4 points)
(02.06)
The figure below shows parallel lines cut by a transversal:
A pair of parallel lines is shown, cut by a transversal. Angle 7 is located in the upper right exterior corner on the top line, and angle 8 is located in the upper left exterior corner of the top line.
Which statement is true about ∠7 and ∠8? (4 points)
Question 3 options:
1)
∠7 and ∠8 are supplementary because they are a pair of corresponding angles.
2)
∠7 and ∠8 are complementary because they are a pair of adjacent angles on a straight line.
3)
∠7 and ∠8 are congruent because they are a pair of adjacent angles on a straight line.
4)
∠7 and ∠8 are supplementary because they are a pair of adjacent angles that form a straight line.
Answers
Answer:
4)
Step-by-step explanation:
Answer:
It's 4
Step-by-step explanation:
5/4y + 8 = 17.50
Please Help me
Answers
5/4y+ 8− 8= 17.5− 8
5/4y = 9.5
Step 2: Multiply both sides by 4/5.
(4/5) * (5/4y) = (4/5) * (9.5)
y = 38/5
plz help me i did it but messed up some ware plz help . 5x5=4x5+9=
Answers
Answer: 25=29
Step-by-step explanation:5x5=25
4x5+9=29
Answer:
Need brainliest
Step-by-step explanation:
Olivia is going to invest $32,000 and leave it in an account for 15 years. Assuming the interest is compounded monthly, what interest rate, to the nearest hundredth of a percent, would be required in order for Olivia to end up with $80,000?
Answers
Answer:
6.12
Step-by-step explanation: