Answer: 2y - 20z = -16
Step-by-step explanation:
6(2x+y-3z) = 5(6)
=> 12x + 6y- 18z = 30
3(2x + 3y + z) = 13(3)
=> 6x + 9y + 3z = 39
Now minus the top equation from the bottom two:
12x + 6y - 18z = 30
6x + 9y + 3z = 39
6x - 5y - z = 7
12x + 6y - 18z = 30
12x + 4y + 2z = 46
Minus top from bottom:
2y - 20z = -16
Which multiplication problem does the model show?
Please help me it’s-test
I think the third once because is Making criss-cross
Hannah and Jenny are selling pies for a school fundraiser. Customers can buy cherry pies and
blackberry pies. Castel sold 13 cherry pies and 1 blackberry pie for a total of $97. Jasmine sold
6 cherry pies and 3 blackberry pies for a total of $93. What is the cost each of one cherry pie and
one blackberry pie?
Answer:
6 for cherry
19 for blackberry
Step-by-step explanation:
Cherry = x
Blackberry = y
Make system of equations:
Castel:
13x + y = 97
Jasmine:
6x + 3y = 93
Substitution w/ Castel's equation:
y = 97 - 13x
Put into Jasmine's equation
6x + 3(97 - 13x) = 93
6x + 291 - 39x = 93
291 - 33x = 93
-33x = -198
x = 6 $ per Cherry Pie
Plug x = 6 into any equation (choose Castel's):
13(6) + y = 97
y + 78 = 97
y = 19 $ per Blackberry Pie
**Check answers... and it's correct yay
Someone please help me in this I don’t want to fail..please..I’m so bad at math..
Answer:
i think your answer would be d
Step-by-step explanation:
hope this helps!
Solve for the variable
Answer:
v= 25
Step-by-step explanation:
Try to isolate the variable by getting rid of the 5. Multiply both sides of the equation by 5 to cancel out the 5 on the left side. You are left with 7v= 35(5). Simplified it is 7v= 175. Then to get the v alone, you need to divide both sides by 7 to cancel out the 7 on the left side. You are left with v= 175/7.
This is v= 25
6th grade math help me pleaseee
Answer:
b=9
Step-by-step explanation:
1/3b=3
divide 1/3 on each side
b=9
Answer:
y=1/3×b 3=1/3×b b=9 So 9 total batchedCan anyone help??? due in 10 mins please.
Step-by-step explanation:
(6x+4)+(4x+26)+110°=180°{straight angle}
10x+140=180°
10x=180-140
x=40/4
x=10
(6x+4)=(6×10+4)=(60+4)=64°
(4x+26)=(4×10+26)=40+26=66°
hope it helps.
Answer:
6x+4+4x+26+110=180 straight line
10x=180-140
x=40/10=4
<A=4x+26=4×4+26=42
50 is equal to the difference of a number and 17
Answer:
67
Step-by-step explanation:
i hope this is right ......
Answer:
50-17=33
33+17=50
could be wrong I don't know
Maya has 200 songs on her cell phone. 48 songs are K-Pop. What percent of Maya's songs are K-Pop?
Answer: 24%
Step-by-step explanation:
Write and solve an equation to find the value of x and a missing angle in the triangle below.
Answer:
angle UTS +TSU =TUV
THEREFORE, 81 + 12X =24X+9
THEREFORE, 81 - 9 = 24X - 12X
THEREFORE, 72 = 12X
THEREFORE, 72/12 =X
THEREFORE, x = 6
THEREFORE, ANGLE TSU = 12 * X
= 12 *6
= 72
YOUR ANSWER IS
X=6
TSU=72
THANK YOU......
Help please! im confused
Answer:
1/2
Step-by-step explanation:
area of larger square: 12 x 12 = 144
area of smaller square: 6√2 x 6√2 = 72
S/B = 72/144 = 1/2
For the graphed function f(x) = (4)x - 1 + 2, calculate the average rate of change from x = 2 to x = 4.
Answer:
[tex]Average = 30[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 4^{x - 1} + 2[/tex]
Required
Average [tex]rate\ of\ change[/tex] from 2 to 4
This is calculated using:
[tex]Average = \frac{f(b) - f(a)}{b - a}[/tex]
Where
[tex]a= 2[/tex] and [tex]b = 4[/tex]
So:
[tex]Average = \frac{f(4) -f(2)}{4 - 2}[/tex]
[tex]Average = \frac{f(4) -f(2)}{2}[/tex]
Calculate f(2) and f(4)
[tex]f(x) = 4^{x - 1} + 2[/tex]
[tex]f(2) = 4^{2-1} + 2[/tex]
[tex]f(2) = 4 + 2[/tex]
[tex]f(2) = 6[/tex]
[tex]f(4) = 4^{4-1} + 2[/tex]
[tex]f(4) = 4^3 + 2[/tex]
[tex]f(4) = 66[/tex]
So:
[tex]Average = \frac{f(4) -f(2)}{2}[/tex]
[tex]Average = \frac{66 - 6}{2}[/tex]
[tex]Average = \frac{60}{2}[/tex]
[tex]Average = 30[/tex]
At Mauras feeding boutique for out of the 40 beads on clearance are plastic what percentage of beads on clearance are plastic
Answer:
The answer is "6".
Step-by-step explanation:
Please find the complete question in the attached file.
Given:
[tex]percenatge= 15 \%\\\\beads= 40[/tex]
[tex]\to \frac{15}{100} \times 40\\\\\to \frac{600}{100} \\\\\to 6[/tex]
12ax² - (9a² - 8b²) x + (2a² + 5ab + 2b²) = 0 solve for x
Answer:
[tex]\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a} \\\\or\\-\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a}[/tex]
Step-by-step explanation:
The quadratic formula for
[tex]ax^2+bx+c=0[/tex]
the solution is: (-b±√(b²-4ac))/(2a)
The solution is:
[tex]\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a} \\\\or\\-\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a}[/tex]
this is wrong bc i need a problem not only one number what is the problem for "When I triple my number and add four, I get ten. What is my number?" this
Answer: 2
Step-by-step explanation:
Let's substitute the number as x in the equation.
Triple means you multiply it by 3.
Then you add four, and get 10.
We can write that like this:
3x + 4 = 10
Then subtract 4 from both sides:
3x = 6
And then divide both sides by 3:
x = 2
So the number is 2.
Quadrilateral M' is the image of quadrilateral M under a dilation.
What is the center of the dilation?
Answer:
3
Hope that helps!
Step-by-step explanation:
9514 1404 393
Answer:
D
Step-by-step explanation:
Draw lines through corresponding vertices. Where those lines meet is the center of dilation. It is point D.
HELP ME PLZ
Marta has a bag of 10 orange blocks and 10 purple blocks she selected a block with out looking and return it to the bag she repeats this 20 times ( which charts show result that are most likely )
a teacher invested $600 in an account that paid 2% annual simple interest the teacher did not maker any additional deposits or withdrawals. What is the total amount of interest paid by this investment at the end of 3 years?
Answer:
$36.00
Step-by-step explanation:
The formula for simple interest is I = P x r x t where P is the principal amount, $600.00, r is the interest rate, 2% per year, or in decimal form, 2/100=0.02, and t is the time involved, 3....year(s) time periods. So t is 3....year time periods. To find the simple interest, we multiply 600 × 0.02 × 3 to get that the interest is $36.00 . Usually now, the interest is added onto the principal to figure some new amount after 3 year(s), or 600.00 + 36.00 = 636.00.
identify the values of a, b, and c for the quadratic function in standard form y=-8x^2+6x-3
Parallel lines cut by a transversal...I need X, no decimals.
(Hint: The answer is either 9 or 26)
Answer:
x = 26
Step-by-step explanation:
These angles are equal b/c of alt exterior angles
9x + 18 = 10x - 8
9x - 10x = -8 - 18
-x = -26
x = 26
help please, i don’t understand
Answer:
x = 13
Step-by-step explanation:
Since the triangles are congruent by AAS.
6x - 1 = 4x + 25
or 2x = 26
x = 13
please help i’m in a test rn. Consider the geometric sequence -7, 14, -28, .... Select all that apply.
A
The 8th term is –7(-2)
B
The common ratio is 2.
С
The 9th term is greater than the 10th term.
D
The 7th term is 4 times the 5th term.
E
The 5th term of the sequence is -112.
nsweres el dodeel s Step-by-step explanationen
people ask me sometimes why can’t you do your homework and I say it’s because I help people with theres and they never help me :((((((
Answer:
6/6 6= 1
Step-by-step explanation:
may be this Is the ans sorry if l am wrong
PLEASE URGENTLY ANSWER THESE 2 QUESTIONS, I WILL PROVIDE MORE POINTS AND CROWN YOU BRAINLIEST IF YOU DO!!!
-
Use a virtual dice roller or a physical die to roll a die 60 times. record your results in the table below:
Number-----Frequency
1----------------------15
2---------------------13
3---------------------5
4---------------------9
5---------------------8
6---------------------10
What is the proportion of times did you roll a 1? (Already answered)
15 Times (This will be your value of p-hat)
1. Say you want to analyze how likely it is that you rolled the proportion of 1s that you did. Would it be appropriate to use a normal model to figure this out? why or why not?
2. Find the probability that the proportion of 1s that you rolled is less than your value of p-hat. Interpret what you find in context.
Answer:
1. I would think it would be a appropriate to use a normal model to figure this out because sometimes when you are using stuff online you can get the same number like 20 times in a row, whereas, if you use a real dice, you most likely won't roll the same number 20 times.
2. { sorry two doesn't make sense }
Please help me with question 3 guys
im in 7th can i get help on these quetion
Answer:
so what is the question pls brief it up
Answer:
CAN U CUMMM?
Step-by-step explanation:
14. Find x, y, and z in the figure.
900
2ནས་
15. Find x and y in the figure.
3
4yº (5r-20)
we know that
The sum of the internal angles in the triangle must be degrees
see the attached figure with letters to better understand the problem
Step
Find the measure of the angle x
In the triangle ABC
solve for x
therefore
the answer Part a) is
the measure of angle x is
Step
Find the measure of the angle z
we know that
--------> by supplementary angles
substitute the value of x
therefore
the answer Part b) is
the measure of angle z is
Step
Find the measure of the angle y
In the triangle ACD
solve for y
therefore
the answer Part c) is
the measure of angle y is
please help!
1. select all solutions to the equation
3x - y = 10
A). Neither
B). only (3, 1)
C). (4, -2)
D). both (4, -2) and (3, 1)
2. which of the following points are NOT
solutions to the equation? (select all that apply)
y = 5x - 7
A). (1, -2)
B). (3, 8)
C). (1, 2)
D). 0, 1)
E). (-1, -2)
F). (0, -7)
1. B) only (3,1)
2. A), B) and F)
Alberto pagó el año pasado 350 euros por un servicio de teléfono móvil. Si este año ha pagado 378 euros, ¿qué tanto por ciento ha aumentado en el gasto de teléfono móvil?
Answer:
the percentage increase is 5.3%
Step-by-step explanation:
The computation of the percentage increase is shown below:
= (Current year - last year) ÷ (last year)
= (378 euros - 359 euros) ÷ (359 euros)
= 19 euros ÷ 359 euros
= 5.3%
hence, the percentage increase is 5.3%
What is the solution for m? 2/3m + 6 = 18
Answer:
m=18
Step-by-step explanation:
[tex]\frac{2}{3} m+6=18\\\\\frac{2}{3} m=12\\\\m= 18[/tex]
Answer:
18
Step-by-step explanation:
18 - 6 = 12
2/3m = 12
2m = 36
divide by 2
m = 18
really hard problem need help asap
Answer:
interior angle sum = (Number of sides x 180°) - 360°
interior angle sum = (6 x 180°) - 360° = 720°
∠CDE = (720° - 90° - 90°)/4 = 135°