Answer:
x=2,y=-5
Step-by-step explanation:
−4x+3=x−7
x=2; y=−5
Answer:
y = -5 and x = 2
Step-by-step explanation:
substitute y in the first equation with x-7 from the second equation
x-7 = -4x+3
combine like terms
5x = 10
solve for x
x = 2
plug in x into either equation to solve for y (I used the second equation, but you can use either)
y = 2-7
y =-5
In what group of 120 seventh graders, 30% have completed their science project. how many students have completed their science project?
Answer:
36
Step-by-step explanation:
30% of 120 is 120 x 0.3
120 x 0.3 =36.
Sarah borrows $5575 on a 2 year loan at 3% simple interest. What will be the total amount Sarah has to pay back at the end of year 2?
Answer:
$5909.50
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year,
then, solving our equation
I = 5575 × 0.03 × 2 = 334.5
I = $ 334.50
The simple interest accumulated
on a principal of $ 5,575.00
at a rate of 3% per year
for 2 years is $ 334.50.
What is the median of the data set?
{7, 4, 2, 0, 12, 7,3}
Select from the drop-down menu to correctly complete the statement.
The median of the data set is Choose... 0, 4, 5, 7, 12
Answer:
4
Step-by-step explanation:
To find the median (middle) of the data set, first arrange the numbers in order: 0, 2, 3, 4, 7, 7, 12. Now find the middle number: 4.
Hope it helps!
Answer:
4
Step-by-step explanation:
What is the value of x?
59
95
101
Answer: 105
Step-by-step explanation:
101+95+59= 255
360-255=x
255+x=360
255+150=360
x=150
Gary is building a new L-shaped desk for his room. He wants to make sure it
is large enough to hold all his supplies. The dimensions of the desk, in feet,
are shown in the diagram. What is the area of the desk?
9 ft
2 ft
6 ft
6 ft
4 ft
3 ft
A. 24 square feet
B. 36 square feet
C. 30 square feet
D. 54 square feet
Answer:
30ft2. so its c
Step-by-step explanation:
its 30
quiz verified
What is the volume of a sphere of 13cm? using 3.14
Answer:
9,203.97 cm^3
Step-by-step explanation:
Here, we want to calculate the volume of the sphere of radius 13 cm
The formula for this;
V = 4/3 * pi * r^3
V = 4/3 * 3.142 * 13^3
V = 9,203.97 cm^3
5 times 10 divided by 4
Answer:
12.5 is the awnser hope i helped
Step-by-step explanation:
a/ab-bsquare + b/ab-asquare?
Answer:
[tex]\dfrac{(a+b)}{ab}[/tex]
Step-by-step explanation:
The given expression is :
[tex]\dfrac{a}{ab-b^2}+\dfrac{b}{ab-a^2}[/tex]
It can be solved as follows :
[tex]\dfrac{a}{ab-b^2}+\dfrac{b}{ab-a^2}=\dfrac{a}{b(a-b)}+\dfrac{b}{a(b-a)}\\\\=\dfrac{a}{b(a-b)}+\dfrac{b}{-a(-b+a)}\\\\=\dfrac{1}{a-b}(\dfrac{a}{b}-\dfrac{b}{a})\\\\=\dfrac{a^2-b^2}{ab(a-b)}\\\\=\dfrac{(a-b)(a+b)}{ab(a-b)}\\\\=\dfrac{(a+b)}{ab}[/tex]
So, the solution of the given expression is equal to [tex]\dfrac{(a+b)}{ab}[/tex].
Solve the quadratic equation numerically (using tables of x- and y- values).
x squared + 2 x + 1 = 0
Answer:
x=-1
Step-by-step explanation:
Step 1: Factor
[tex]x^{2} +2x+1[/tex] => [tex](x+1)(x+1)[/tex]
Step 2: Solve for x.
[tex]x+1=0[/tex]
[tex]-1[/tex] [tex]-1[/tex]
-----------------
[tex]x=-1[/tex]
I need help with geometry
Answer:
the answer will be A
Step-by-step explanation:
12y = 8x + 29 write in slope intercept from and show all your work plz help!
Answer:
2/3x + 29/12
Step-by-step explanation:
P.S Brace yourself cause this is a lot lol :D
The slope-intercept form is
y=mx+b, where m is the slope and b is the y-intercept.
y=mx+b
First, you divide each term by 12 and simplify:
Divide each term in 12y = 8x + 29 by 12:
12y/12 = 8x/12 + 29/12
Cancel the common factor of 12:
You do this by dividing 12y/12 leaving you just with y = 8x/12 + 29/12
Then you cancel the common factor of 8 and 12:
You do this by factoring 4 out of 8x:
y = 4 (2x)/12 + 29/12
Then you cancel even more common factors:
Factor 4 out of 12:
y = 4 (2)/ 4 (3) + 29/12
Then you cancel the common factor in that dividion (which is 4) Leaving you with 2x/3 + 29/12
Finally, you rewrite the expression:
y = 2/3x + 29/12
1/3 + a = 5/4 what is a
Answer:
a=11/12
Step-by-step explanation:
1/3+a=5/4
a=5/4 - 1/3
a=11/12
Answer:
11/12
Step-by-step explanation:
If we make both fractions have the same denominator, then it would be 4/12 + a = 15/12, so 15 - 4 = 11. So the answer would be 11/12.
One day, Cory bought one pair of socks that costs $2.50 each and 3 pair
of shoes that costs d dollars each. He spent a total of $135.97
1a. Write an equation to find the cost, d, of each pair of shoes.
1b. How much does one pair of shoes cost?
Answer: d=44.49
Step-by-step explanation: if had three pairs of shoes the awser would be ,
Please help ASAP.....
Answer:
a
Step-by-step explanation:
Find the slope and the y-intercept of the line.
y=5x-6
slope:
y-intercept: :
Answer:
slope is 5 y intercept is -6
Step-by-step explanation:
how to find the measure of a arc in a circle
Answer:
using the (pi) which is the formula
9514 1404 393
Answer:
it depends on what measure you want
Step-by-step explanation:
The angular measure of an arc of a circle is equal to the central angle it subtends.
θ = θ
__
The length measure of an arc of a circle is equal to the product of the central angle in radians and the radius.
s = rθ
write an equivalent fraction for each whole
Answer:
If the numerator is divisible by the denominator, the fraction is equivalent to a whole number. In other words, if you can divide the numerator by the denominator without any remainder, the fraction is equivalent to a whole number.
Step-by-step explanation:
Pleaseee answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
Answer:
angle E is congruent to Angle F
omg please help quickly :)
Answer:
gracias mijita mia flou del bueno se nesesita flou papumkñlovgjkAqwsZdeXrg
The sum of two numbers is 76. Their
difference is 2. Find the numbers.
Answer:
39 and 37
Step-by-step explanation:
76/2=n
n+1, n-1
solve the equation 4+3x-1/2=9 .Explain the reasons why you chose your solution method.
Answer:
x = 5
Step-by-step explanation:
that would look like this:
[tex]\frac{4+3x-1}{2}=9[/tex]
first, to remove the denominator (2), we should multiply both sides by 2. therefore, we get:
4 + 3x - 1 = 18.
now, we transpose 4 and -1 to the other side, in order to isolate 3x.
3x = 18 + 1 - 4
3x = 15
to find x, we divide both sides by 3. therefore, we get:
x = 5
Answer:
Step-by-step explanation:
[tex]4 + 3x - \frac{1}{2}=9[/tex]
Subtract 4 from both the sides
[tex]3x - \frac{1}{2}=9 - 4\\\\3x - \frac{1}{2}= 5[/tex]
Add (1/2) to both sides
[tex]3x = 5 + \frac{1}{2}\\\\3x = \frac{5*2}{1*2}+\frac{1}{2}\\\\3x=\frac{10}{2}+\frac{1}{2}\\\\3x=\frac{10+1}{2}\\\\3x=\frac{11}{2}\\\\x=\frac{11}{2*3}\\\\x=\frac{11}{6}[/tex]
Please help. Brainliest
Answer:
second choice.
Step-by-step explanation:
Given the sequence: 128, 32, 8, 2, ½, …
State the rule verbally. In other words, state how you would tell someone the sequence without just listing the numbers in the sequence.
Write the recursive rule for the sequence.
Write the explicit rule for the sequence.
please help me :')
Estimate the product. 3 1/3 ×4 1/8 = ?
Answer:
The answer would be 13 3/4
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Estimation:
3 1/3 --> 3
4 1/8 --> 4
3 x 4 ~ 12
Hope that helps!
Midsegment- Find x (x+10)(x+2)
Answer:
Step-by-step explanation:
[tex]\frac{x+2}{x+10}=\frac{1}{2}\\ \\ 2(x+2)=x+10\\ \\ 2x+4=x+10\\ \\ 2x-x=10-4\\ \\ x=6[/tex]
Please help, math isn’t my strong suit.
Can some one help please
Answer:
204
Step-by-step explanation:
separate into 2 squares/rectangles
13×12(because 20-8 since you cut it in half)
8×6
156+48=204
HELP I DON'T UNDERSTAND
If the sum of measures of angle a and b is 280 degrees, what is the measure of angle C?
A. 80 degrees
B. 160 degrees
C. 140 degrees
D. 40 degrees
Answer:
40 degrees
Step-by-step explanation:
because angle b and angle a are vertical angles they are congruent and if they add up to 280 you just have to divide that by 2 to get the value of one of the angles
280/2=140
because angle c and angle b are supplementary they are going to add up to equal 180
180-140=40 so c=40
Answer:
40
Step-by-step explanation:
Graph f(x)=4x^3-4x-2
Answer:
minimum: ([tex]\frac{\sqrt{3} }{3} , -\frac{8\sqrt{3} }{9}-2[/tex])
maximum: (-[tex]\frac{\sqrt{3} }{3} , \frac{8\sqrt{3} }{9}-2[/tex])
vertical intercept: (0 , -2)
Step-by-step explanation:
