Answer:
x=-29/24
y=3/8
Step-by-step explanation:
3x-9y= -7 ---A
2y-6x= 8----B
multiply eq A by 2
6x-18y=-14
-6x+2y=8
Add both equations, so you eliminate x since 6x+(-6x) = 0
-18y+2y= -16y
-14+8=-6
so you have
-16y=-6
y=3/8
now substitute this back to eq B, (you can use eq A as well if you like)
2(3/8)-6x=8
3/4-6x=8
-6x=29/4
x=-29/24
if a +b = 100, then the value of 3 (a+b) is:
Given info:- If a +b = 100, then the value of 3 (a+b) is:
Solution:-
a + b = 100
Therefore, 3(a+b)
= 3(100)
= 300.Ans
Read more:
Similar Questions
Find the value of a*b* if n = 3, a = 100, and b=1/4..
https://brainly.com/question/15990855?referrer
12 lbs of
potatoes
for $15.00
OR
8 lbs of
potatoes
for $9.20
Answer:
12 lbs for $15
Step-by-Step Solution:
12 / $15 = $0.80
8 / $9.20 = $0.87
4. Find a polynomial function of degree 3 with the given zeros. Write your answer in the form:
Ax) = ax + bx² + cx+d
x= -2, x=-1, x=2
Answer:
I'm assuming the equation "Ax) = ax + bx² + cx+d" is really meant to read:
A(x) = ax^3 + bx² + cx+d
A(x) = x^3 + x^2 -4x -4
Step-by-step explanation:
(x+2)*(x+1)*(x-2) [This reflect the fact that x= -2, x=-1, x=2 all result in a zero]
Multiply this out to get A(x) = x^3 + x^2 -4x -4
5) You roll a fair six-sided die twice. The
first roll shows a one and the second roll
shows a three.independent or dependent?
Answer:
Happy Chrismas My friend.
A 10 kg computer accelerates at a rate of 5 m/s2.how much force was applied to the computer
Answer:
50 N
Step-by-step explanation:
Given :-
Mass = 10 kg
Acceleration = 5 m/s²
To find
Force applied
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 10 × 5
We have the final answer as
50 N
(Hope this helps can I pls have brainlist (crown)☺️)
[tex]\purple{\longrightarrow \sf Force = Mass \times Acceleration}[/tex]
[tex]\longrightarrow \sf Force = 10 \; kg \times 5 \; m/s^2[/tex]
[tex]\longrightarrow \sf Force = 50 \; kgm/s^2[/tex]
[tex]\longrightarrow {\pink{\underline{\underline{\sf{ Force_{(Applied )} = 50 N }}}}}[/tex]
Henceforth :
The force applied on the computer is 50 N.
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I need help with question 5
Answer:Hi!
where is the question?
Step-by-step explanation:
solve for b please. last one 33 points
Answer:
32
Step-by-step explanation:
6^2= b^2 + 2^2
b^2 = 36- 4
b^2= 32
b= √32
Answer:
√32
Step-by-step explanation:
The Pythagorean Theorem, a2+b2=c2, a 2 + b 2 = c 2 , is used to find the length of any side of a right triangle.
6² - 2² = b²
36 - 4 = b²
32 = b²
Bài 43 sgk trang 225 và làm thêm giùm mình phần d và phần e trong ảnh nhoa :>
Answer:
Are male and female children treated differently in your family? Have your parents had different experiences for their sons and daughters? Write a narrative essay recounting one or more incidents that illustrate these differences (or lack of differences) . If you and your siblings are all the same gender, or if you are on only child, write about another family you know well.
Step-by-step explanation:
Are male and female children treated differently in your family? Have your parents had different experiences for their sons and daughters? Write a narrative essay recounting one or more incidents that illustrate these differences (or lack of differences) . If you and your siblings are all the same gender, or if you are on only child, write about another family you know well.
I need #8 done (Show work) will mark brainliest
Answer:
see explanation
Step-by-step explanation:
Since BD bisects ∠ ABC , then
∠ ABD = ∠ DBC , substitute values
3x + 4 = 55 ( subtract 4 from both sides )
3x = 51 ( divide both sides by 3 )
x = 17
Step-by-step explanation:
Statement Reason
BD bisects ∠ABC Given
m∠ABD = (3x + 4)°, m∠DBC = 55° Given
∠ABD ≅ ∠DBC Definition of angle bisector
3x + 4 = 55 Definition of congruence
3x = 51 Subtraction property
x = 51/3 Division property
x = 17 Proved
− 2 5 x − 9 < 9 10 solve and show work please I need help
Answer:
= -36.4
Step-by-step explanation:
- 25 x - 9 < 910
Add 9 to both sides
- 25 x < 919
Divide -25 to both sides
- 25 / - 25 < 919 / - 25
= -36.4
evaluate 1000 x 1.2
help asap!!
Answer:
1200
hello i love to help
Please need help 100 points
Answer:
(29/37)-(48/37i)
Step-by-step explanation:
Use complex arithmetic rule:
a+bi/c+di = [(c-di)(a+bi)/(c-di)(c+di)] =[(ac+bd)+(bc-ad)i]/c^2+d^2
To get: (29-48i)/37
Then rewrite it in standard complex form to get your answer.
Hope that helps!
Carlos bought 17 boxes of cereal. This is 20% of the total boxes at the store. In order to find the total number of boxes at the store, what do you need to find?
A) the part
B) the whole
C) the percent
D) benchmark percent
Answer:
The whole
Step-by-step explanation:
If the part is 20% then you already have a part of a whole, now you need to find the entire thing
Write 63 as the product of prime factors
HOW AM I WRONG???
Answer:
Since, the prime factors of 63 are 3, 7. Therefore, the product of prime factors = 3 × 7 = 21.
Step-by-step explanation:
Answer:
3x3x7
Step-by-step explanation:
Dw worry ur not wrong but mathswatch sometimes doesnt want you to simplify it and want you to write it all out :P
Hope this helps! :)
Five positive integers have
a mode of 9,
and a median of 7,
and a mean of 6.
What is the greatest possible range of the five integers?
Answer:
5
Step-by-step explanation:
The mean is 6 and there are 5 intergers.
You'd multiply 5*6=30. That means that the sum is 30.
The values could be: 2 3 7 9 9
These values add up to 20
Have a mode of 9
Have a median of 7
Have a mean of 6
To find the range you would subtract 9 and 2. That gives you 5.
(i don't know if that's the greatest possible range. But 5 would be the range here)
A line passes through the points (1, 4) and (3 -4). Which is the equation of the line?
Answer:
Step-by-step explanation:
(-4 - 4)/(3 - 1)= -8/2= -4
y - 4 = -4(x - 1)
y - 4 = -4x + 4
y = -4x + 8
answer is option 1
The triangle below is equilateral. Find the length of side xx in simplest radical form with a rational denominator.
Answer:
x= 12 cm
Step-by-step explanation:
Answer:
[tex]x=(4\sqrt{3})/3[/tex]
Step-by-step explanation:
If we know that it is equilateral, we know that all angles are 60 degrees, which makes the top smaller triangle a 30-60-90 triangle. Applying the 30-60-90 triangle theorem, we get x=4/sqrt3. By rationalizing the denominator, we get [tex]x=(4\sqrt{3})/3[/tex]
How to factor a polynomial with a degree of 4.
Answer:
We can factor a difference of fourth powers (and higher powers) by treating each term as the square of another base, using the power to a power rule. For example, to factor x4 - y4, we treat x4 as (x2)2 and y4 as (y2)2. Thus, x4 - y4 = (x2)2 - (y2)2 = (x2 + y2)(x2 - y2) = (x2 + y2)(x + y)(x - y).
Esitmate 242 PLEASEEEEEEEEE I NEED THIS
Find and intercept the slope of this line.
Answer:
The slope is -4. The amount of money left goes down by 4 with each comic book.
Step-by-step explanation:
The answer is D
Ram's income is 35% more than that of Anil's income. By what percent is Anils incomes less than Ram's income? Step by step answer pls i rly need it
Answer:
100%-35%=75%
so ex-
if ram has an in income is 500
than anil is 35%lower than his so,anil has an income of 350 which is 35%less tan 500.
Answer:
25.9%
Step-by-step explanation:
anil = 100%
ram = 135%
fraction Anils income is of Ram's income
anil/ram = 100/135
a/r = 0.7407407407
74.1%
percent Anils income is less than Ram's income?
100% - 74.1% = 25.9%
$1,000 invested at 8% compounded semiannually after a period of 2 years
Answer:
1160 will be the new amount after 2 years
Step-by-step explanation:
P = $1000, t = 2 years, r = 0.08.
A = 1000(1+0.08(2)) = 1000(1.16) = 1160
Therefore 1160 is the new amount after two years.
Calculate the missing terms in each proportion.
◼:11 = 11:121
5:2:1 = ◼:14:◼
1.5:◼:2.4 = 6:5:◼
Please Help me!
Answer:
1:11=11:121
5:2:1=35:14:7
1.5:1.25:2.4=6:5:9.6
Step-by-step explanation:
x/11=11/121 so x equals 1
5/2=x/14 so x equals 35
1.5/x=6/5 so x equals 1.25
1.25:2.4=5/x so x equals 9.6
Help please will mark brainliest if correct
Answer: x = 1 and x = -1
Please simplify
(6-√-16)+(-4+√-25)
Answer:
2+i
Step-by-step explanation:
How many decimals in multiplication.
Answer:
In multiplication of a decimal by a decimal number we will learn how to find the product of a decimal by another decimal.
To multiply a decimal number by a decimal number, we first multiply the two numbers ignoring the decimal points and then place the decimal point in the product in such a way that decimal places in the product is equal to the sum of the decimal places in the given numbers.
-5+5(x-7)=-40+5x solve for x
Answer: all real numbers
Step-by-step explanation:
simplify this addition 20+(-6x)+6x+(-20)
Answer:
0
Step-by-step explanation:
20+(-6x)+6x+(-20)=20-6x+6x-20
=0
A random sample of 150 adults was given an IQ test. It was found that 78 of them scored higher than 100. Based on this, compute a 99% confidence
interval for the proportion of all adults whose IQ score is greater than 100. Then find the lower limit and upper limit of the 99% confidence interval.
Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
Answer:
answer in the link
Step-by-step explanation:
Please help me with this question! It's a writing question.
Answer:
That he made a medicine that reduces coughing
Step-by-step explanation: