Answer:
x = 400
y = 1000
Step-by-step explanation:
Step 1
mult by the first equation by 2
15x + 2y = 4000 ....... x 2
30x + 4y = 8000
the second equation is
10x = 4y
=
10x - 4y =0
then subtract the second equation from the first one
30x + 4y = 8000
- (minus)
10x - 4y = 0
the you will get
20x = 8000
x = 8000/20 = 400
then you will substitute value of x in any the give equation to work out the value of y
Barb makes 2.5 pounds
of mashed potatoes to
feed 15 people. How
much will she need to
make to feed 50
people?
Find the area of the following figure:
Please answer I’ll give Brainly
Answer:
138 square centimeters
Step-by-step explanation:
You can find the area by splitting up the shape into pieces and adding it all together, and you get 138 square centimeters.
Amy , bill and Claire share an amount of money in the ratio 5:7:8
Answer:
7/20
Step-by-step explanation:
add the number up which is 20 and the purpose of bill is the middle of 7 is middle in the ratio
44. An inequality that provides a boundary for a situation
A. constraint
B. parameter
C. minimum
D. maximum
Israel must choose two different elective classes next year. The list shows all the possible outcomes, in his order of preference. Band and painting Painting and chorus Ceramics and band Band and drama Chorus and ceramics Drama and chorus Which statements are true? Select all that apply. He had to choose between band and chorus. He had to choose between band and drama. He had to choose between painting, ceramics, and drama. He had to choose between chorus and ceramics. He had to choose between chorus, ceramics, and painting.
Answer:
A, C
Step-by-step explanation:
He had to choose between band and chorus.
He had to choose between painting, ceramics, and drama.
Trust
Answer:
A & C
Step-by-step explanation:
A family wants to rent a car to go on vacation. Company A charges $75.50 and 12¢ per mile. Company B charges $45.50 and 11¢ per mile. How much more does Company A charge for x miles than Company B?
Answer:
30-.01x
Step-by-step explanation:
(75.50-45.50)-(.12x-.11x)=
30-.01x
Rewrite the Polynomial as a product of the monomial and the polynomial 3x^2yz^3-9x^3y^2z+12x^2y^3z^2 I WILL AWARD BRAINLIEST
Answer:
[tex]P = 3x^2yz ( z^2-3xy+4y^2z)[/tex]
Step-by-step explanation:
Given
[tex]P = 3x^2yz^3-9x^3y^2z+12x^2y^3z^2[/tex]
Required
Write as a product of monomial and polynomial
Factor out [tex]3x^2yz[/tex] from each term
[tex]P = 3x^2yz * z^2-3x^2yz *3xy+3x^2yz *4y^2z[/tex]
Factor out [tex]3x^2yz[/tex]
[tex]P = 3x^2yz ( z^2-3xy+4y^2z)[/tex]
The above is a product of monomial and polynomial
Find the remainder when the polynomial x3+x2-2x+1 is divided by(x+1)
Answer:
Remainder = 3
Step-by-step explanation:
Given
[tex]P = x^3 + x^2 - 2x + 1[/tex]
[tex]D =x + 1[/tex]
Required
Determine the remainder
[tex]D =x + 1[/tex]
Equate to 0
[tex]x + 1 = 0[/tex]
[tex]x = -1[/tex]
Substitute -1 for x in [tex]P = x^3 + x^2 - 2x + 1[/tex]
[tex]P = (-1)^3 + (-1)^2 - 2(-1) + 1[/tex]
[tex]P = -1 + 1 + 2 + 1[/tex]
[tex]P = 3[/tex]
Hence, the remainder is 3
What is the hcf of 27, 36, 54
Please help me with this
Answer:
2x for the first term
The whole thing is 2x+3
Step-by-step explanation:
Think of it like normal division
What will get the closest answer to 2x^2+x?
2x*x-1=2x^2-2x
Now the expression is 3x-3 so if you but 3 than it becomes 3x-3 which would be a remainder of 0
Which figure could be the result of dilating this rectangle with a scale factor between 0 and 1?
Answer:
When we dilate a figure with a scale factor between 0 and 1, the size of the figure shrinks but maintains the same orientation as the original figure. Therefore the correct option is B.
What is the slope below?
Answer:
-1.25
Step-by-step explanation:
-5/4
notice the two dotted points
in order to find slope, do RISE/RUN
in order for the two dotted points to meet, you must go UP 5 and ACROSS 4
rise = up
run = across
next, you need to solve the slope
do -5/4
-5/4 = -1.25
your answer is -1.25
Answer:
-1.25
Step-by-step explanation:
5/-4=-1.25
PLEASE I NEED HELP 10 points (dont waste them) What is the area of this figure?
Enter your answer in the box.
Answer:
1280
Step-by-step explanation:
I think it is 1280 because 20*16*8/2=1280. I am not 100% sure.
Here are the shopping times in minutes) for a sample of 6 shoppers at a particular shoe store.
31, 39, 43, 41, 27, 41
Find the standard deviation of this sample of shopping times. Round your answer to two decimal places.
Answer:
41,41
Step-by-step explanation:
because thenumber of 41 is repeated
what is the HCF of 15and25
Answer:
5
Step-by-step explanation:
HOPE IT HELPS YOU .......
pls help guys im having trouble on this question and need help
Answer:
Edgar
Step-by-step explanation:
Just use a coordinate plane yourself, and follow the steps
The table below shows some prices at a produce stand. Produce Price per Pound Onions $0.75 Yellow Squash $1.99 Spinach $4.00 Potatoes $0.50 Selena has $11. What is the greatest amount of spinach she can buy? The greatest amount of spinach that Selena can buy is pounds.
Answer:
Step-by-step explanation:
The greatest amount of spinach that Selena can buy is 2 lbs
11/4=2.75
she can buy 2.75 lbs
Martin finds a shirt on sale for 20 %off at a department store. The original price was 10$ Martin must also pay 8.5% sales tax. How much is the shirt before taxes are applied? How much is the shirt after tax is applied?
Answer:
Step-by-step explanation:
Sale price = 80% of $10 = 0.80×$10 = $8
price + tax = 1.085×$8 = $8.68
Answer:
$8.00
Step-by-step explanation:
i did the math
What is the equation for g(x) =
I need help ASAP I WILL GIVE BRAINLIEST
Answer:
g(x) = math is a buncha bull :)
Step-by-step explanation:
Eli saves money each month to buy a new computer.
The total amount he has saved, T, can be calculated
by the equation T = 83 + 30m, where m is the
number of months since he started saving. What
does the number 83 represent in the equation?
Answer:
The money he already had when he started saving.
Step-by-step explanation:
Eli begin with $83 during month [m] = 0 and saved money onwards starting from month one.
What does the constant (c) in the equation → y = mx + c indicates?The constant (c) in the equation - y = mx + c, indicates the value of (y) at
x = 0. This means that it indicates the value of (y) even before the value of (x) started to increase.
Given is the equation → T = 83 + 30m representing the money saved by Eli each month to buy a new computer.
The equation given is -
T = 83 + 30m
When compared to the equation of the straight line -
y = mx + c
We get -
c = 80
This shows that Eli begin with $83 during month [m] = 0 and saved the money onwards starting from first month.
Therefore, Eli begin with $83 during month [m] = 0 and saved money onwards starting from month one.
To solve more questions on Amount estimation, visit the link below-
https://brainly.com/question/14600585
#SPJ2
will pay $5 to whoever solves this :)
Quadrilateral WXYZ is dilated by a scale factor of į to form quadrilateral W'X'Y'Z'. What is the measure of side ZW? Z 28 Y" 42 42 W 28
Answer:
See Explanation
Step-by-step explanation:
Given
The given side lengths are not clear enough:
So, I will give a general explanation.
From the question, we understand WXYZ is dilated to produce W'X'Y'Z
This implies that the sides of WYZY is multiplied by the scale factor (k) to give W'X'Y'Z'
i.e.
[tex]ZW *k =Z'W'[/tex]
Divide both sides by k to get side length ZW
[tex]ZW = \frac{Z'W'}{k}[/tex]
Assume that:
[tex]k = 4[/tex] and
[tex]Z'W' = 28[/tex]
[tex]ZW = \frac{Z'W'}{k}[/tex]
[tex]ZW = \frac{28}{4}[/tex]
[tex]ZW = 7[/tex]
Apply these steps and you will get your answer
8. Four Men working together can finish a house repair job in 12 days.
How many days will 6 men working at the same rate finish the same ja
9 Which of the
Step-by-step explanation:
if 4 men did the job in 12 days , then each of the 4 men worked for 12 days , which means they worked for 4*12=48 days , so the job takes 48 work days to complete. If all men work at the same rate, then these other 6 will complete the job in
[tex] \frac{48}{6} = 8 \frac{days}{man} [/tex]
Therefore, it’ll take the group of 6 men 8 days to complete the job.
Factor by grouping 5·(a+3)^2-(a+3)
Answer:
(a+3)(5a+14)
Step-by-step explanation:
Hope this helps
Encryption Matrices are commonly used to encrypt data. Here is a simple form such an encryption can take. First, we represent each letter in the alphabet by a number, so let us take < space > = 0, A = 1, B = 2, and so on. Thus, for example, "ABORT MISSION" becomes [1 2 15 18 20 0 13 9 19 19 9 15 14]. To encrypt this coded phrase, we use an invertible matrix of any size with integer entries. For instance, let us take A to be the 2 × 2 matrix 3 4 1 2 . We can first arrange the coded sequence of numbers in the form of a matrix with two rows (using zero in the last place if we have an odd number of characters) and then multiply on the left by A. Encrypted Matrix = 3 4 1 2 1 15 20 13 19 9 14 2 18 0 9 19 15 0 = 11 117 60 75 133 87 42 5 51 20 31 57 39 14 , which we can also write as [11 5 117 51 60 20 75 31 133 57 87 39 42 14]. To decipher the encoded message, multiply the encrypted matrix by A−1. The following exercise uses the above matrix A for encoding and decoding. Use the matrix A to encode the phrase "GO TO PLAN B".
Answer:
ok
Step-by-step explanation:
I need help please???!!!!
Answer:
x=2
Step-by-step explanation:
the line in the center is at (2,0)
Write down the percentage multiplier to find 3% of a quantity
Answer:
0.03
Step-by-step explanation:
Hope this helps.
please help with question
Simplify
3^-2 × -2^3
Answer:
[tex]\huge\boxed{\boxed{\color{silver} \sf- \frac{8}{9}}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:law of exponentPEMDAStips and formulas:[tex] {x}^{ - n} < = > \frac{1}{ {x}^{n} } [/tex]let's solve:[tex] {3}^{ - 2} \times { - 2}^{3} [/tex]
[tex] \frac{1}{ {3}^{2} } \times - 2 \times - 2 \times - 2[/tex]
[tex] \frac{ 1}{9} \times - 8[/tex]
[tex] - \frac{8}{9} [/tex]
Step-by-step explanation:
3^-2 × -2^3
1/3²×-2³
1/9×-8
-8/9
What is x in the equation?
Answer:
-1
Step-by-step explanation:
2x+4=2
or 2x= 2-4
or 2x= -2
or x=-2/2
or x= -1
Answer:
Step-by-step explanation:
㏒₁₀ a = y ------> [tex]10^{y} = a[/tex]
log (2x + 4) = 2
10² = 2x + 4
2x + 4 = 100
2x = 100 - 4
2x = 96
x = 96/2
x = 48
