Answer:
Your solution is (-10, 6).
Step-by-step explanation:
Combining the equations is also known as substitution. This is done when you substitute one variable into another equation.
-5x + y = 56
x + y = -4
Let's change the second equation into one with one variable on each side.
y = -x - 4
Now, plug this into your first equation.
-5x + (-x - 4) = 56
Distribute the + sign.
-5x - x - 4 = 56
Combine the like terms.
-6x - 4 = 56
-6x = 60
Isolate x by dividing both sides by -6.
x = -10
Now plug this back into either equation.
-10 + y = -4
Add 10 to both sides to find y.
y = 6
Your solution is (-10, 6).
Check this by plugging in these values into the equation you have not checked yet.
-5(-10) + (6) = 56
50 + 6 = 56
56 = 56
Your solution is correct.
Hope this helps!
Answer:
x=-10; y=6
Step-by-step explanation:
combine the equations:
-5x + y + x + y = 56 +(-4)
-4x + 2y = 52
add 4x to each side
2y=52+4x
divide by 2
y=26+2x
now substitute 26+2x for y in the second equation:
x + 26 + 2x = -4
3x + 26 = -4
3x = -30
x = -10
therefore y = 6
Plz any math genius help me with this question ASAP
Thank you so much
Show all working
Plz help me pass
Answer:
418
Step-by-step explanation:
first row = 13 chairs
next 15 rows are 15 chairs each so
15 x 15= 225
the remaining rows are 10 and they have 3 extra chairs so 18 chairs and 10 remaining rows
10x 18=180
now add 13+225+180=418
hope this helps
Find the slope from the given table:
х Y
-3. 8
0. 7
3. 6
five more than three times a number is 17
The number (x) in: "5 more than three times a number is 17" is what we are solving here.
In other words, you are looking for a number (x) that if you multiply it by three (same as three times) and then add 5, you get 17.
To solve this, you first write the problem as an algebra equation as follows: 3x + 5 = 17
Then you solve the equation by subtracting 5 from both sides, and then divide both sides by 3. Here is the math to illustrate better:
3x + 5 = 17
3x + 5 - 5 = 17 - 5
3x = 12
3x/3 = 12/3
x = 4
Answer = 4
Jasmine has 50 marbles in a bag. 20% of the marbles are blue. How many marbles are not blue? Explain how you found your answer.
Answer:
20% of 50 marbles is 1 fifth of the marbles in the bag. so 50 marbles divided by 5 =10 blue marbles
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
WOW, that's a lot of points!!
To find the answer for this problem, you take 80% of 50.
In the bag, 20% of the marbles are blue. That means that the rest of the 80% are not blue. So, take 0.8 * 50 = 40. 40 marbles that are not blue.
Find the missing side. Round to the nearest tenth.
Answer: 23.7
Step-by-step explanation:
Let's calculate the acute angle at the base of the triangle:
180° - 90° - 40° = 50°
Find side x:
[tex]\dfrac{sin \: 90^{o} }{31} =\dfrac{sin \: 50^{o} }{x}\\\\sin \: 90^{o} \cdot x=sin \: 50^{o} \cdot 31\\\\sin \: 90^{o} =1\\sin \: 50^{o} \approx 0.766\\1 \cdot x =0.766 \cdot 31\\x=23.746\\23.746 \approx 23.7[/tex]
Which statement BEST describes the function notation f(10)=3/2?
A. The output is 3/2 when the input is 10.
B. The output is 10 when the input is 3/2.
C. The output is f(x) when the input is 10.
D. The output is f(3/2) when the input is 10.
Answer: the answer is C I took the test
Step-by-step explanation:
The answer is Option A.
The output is 3/2 when the input is 10
What is a function rule?
The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the function be f ( x ) = y
f ( x ) = f ( 10 ) = 3/2
So , the value of the function at x = 10 is y
Now , when the value of x is equal to 10 , the input is 10
And the function gives an output of 3/2 which is the value of y
Hence , the function gives an output of 3/2 when the input is 10
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2. Find the distance between point A and point B.
5 units
6 units
7 units
8 units
Convert the following equation into slope intercept form. 3x + 21y = 21 Stars
Answer:
y = -(1/7)x + 1
Step-by-step explanation:
[tex]3x + 21y = 21 \\ 21y = 21 - 3x \\ y = \frac{21 - 3x}{21} \\ y = 1 - \frac{1}{7} x \\ y = - \frac{1}{7} x + 1[/tex]
an equation has a slope of -14 and passes through the point, (1,0) what is the slope of the equation of the line when written in slope-intercept form
Answer:
y= -14x +14
Step-by-step explanation:
Answer:
y= -14x +14
Step-by-step explanation:
The mayor's office held a community day for the study there were 392 people that attended 105 for those people were adults 89 boys the rest were girls how many girls were there
Answer:198 Girls were there
Step-by-step explanation:
Total number of people tthat attended the study = 392
Number of adults = 105
Number of boys = 89
Number of Girls= Total number of people attended the study - ( Number of adults + Number of boys)
392- ( 105+89)
392- 194
=198 Girls
Chamoy drove 585 miles in 9 hours. Freddy drove 605 miles in 11 hours. Who drove at a faster rate?
Answer:
Chamoy
Step-by-step explanation:
585/9= 65
605/11= 55
this year benny is 12 years old and his mom is 48 years old, what percent of Benny's age is his mom's age?
Answer: 12% because 12% is half of 48% if not I’m sorry
pls solve these in the answer section i will give brianliest PLSSSSS
5.832 divided by 4
394.6 divided by 2
25.37 x 3.8
Answer:
0.00002237616
Step-by-step explanation:
15 POINTS-
Karen invented a new product that she makes for $2.45. She sells the
product to Walmart marked up 45%. How much does Walmart pay for the
product?
Solve the equation:
M/4 +8=41
Answer:
m = 132
Step-by-step explanation:
(m / 4) + 8 = 41
(m / 4) = 33
m = 132
Step-by-step explanation:
m/4=33
m=33×4=132
,,,,,,,
write this repeating decimal as a fraction.
0.41 repeating
simplified completely
Answer:
41/99
Step-by-step explanation:
Simplest form of the number 0.41 repeating; 41/99
What is mean by Fraction?A fraction is a part of whole number, and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction.
It can be written as the form of p : q, which is equivalent to p / q.
We are Given that 0.41 repeating.
Consider x = 0.41, then multiply both sides of this equation by 100 to remove the decimal point:
100x = 41.41
Simplifying;
99x = 41
Dividing both sides by 99;
x = 41/99
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can someone help me on this ???
Answer:
x=4x-16 is what you get after you distribute
Step-by-step explanation:
2 by 2 is 4
2 by 8 is 16
g(x) = –2x – 4, fild g(6).
Answer:
-16
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Hi! So my class is starting Trinomials and I don’t understand it. We have to fill out this chart and I don’t know how. Can someone please help or explain it to make it easier. PLEASE HELP
Answer: To factor a trinomial in the form x2 + bx + c, find two integers, r and s, whose product is c and whose sum is b. Rewrite the trinomial as x2 + rx + sx + c and then use grouping and the distributive property to factor the polynomial. The resulting factors will be (x + r) and (x + s).
Step-by-step explanation:
how long will it take a rocket traveling at 8 km/s to reach 20 km?
Answer:
2.5 km/s
Step-by-step explanation:
Answer:
Step-by-step explanation:
It depends on velocity of rocket if its speed is 3*10^8 m/s then it will take 30 years and if velocity is different than can find from speed=distance/time .
what would 4xy + 6y be? factoring and its not what i thought the answer was fdkjdfnds
Answer:
10xy^2
Step-by-step explanation:
Collecting like terms, 6+4=10 and the two y's will make y^2
Pls help I’ll give BRAINLIEST
Answer:
I got 12 for this question...
Step-by-step explanation:
Please please give me brainliest (and have a wonderful day!)
Expresa como intervalo de solución de la desigualdad 5≤x-2≤7 *
[7,9]
[7,5)
[-7,9]
(7,9)
Answer:
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Step-by-step explanagggggggggggggggggggggggggggggggggggggggtion:
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kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhHELP I NEED HELP ASAP
The length of a rectangle is 5 more than twice the width. The perimeter is 76. What is the length?
mr.torres is 6 1/4 feet tall. Mr. torres is 5 1/2 feet tall. How much shorter is Mrs. torres than her husband PLEASE HURRY!
Answer: 3/4
Step-by-step explanation: 6 1/4 - 5 1/2
Answer: The answer is 1 2/8
Step-by-step explanation:
5 1/2 X 4/4 = 4/8 So the answer is 1 and 2/8
6 1/4 X 2/2 = 2/8
6 4/8
-
5 2/8
___
1 2/8Which table has a constant of proportionality between y and 2 of 0.3?
Choose 1 answer:
y
6
2
12
4
30 10
2
y
3 1.8
7 4.2
9 5.4
y
1.2
4
8
2.4
13 3.9
Answer:
The question is unclear. Please provide the table.
2) pls help me determine the value
Answer:
The answer is B
Step-by-step explanation:
When you add two negatives together you get a negative
1 1/2 divided by 2 1/4
calculate the value of 1/3 a = -5
Answer:
- 15
Step-by-step explanation:
[tex] \frac{1}{3} a = - 5 \\ \\ a = - 5 \times 3 \\ \\ a = - 15[/tex]
Answer:
-15
Step-by-step explanation:
As you can see, the denominator of 1/3 is 3. 1 third of a is -5. So what you do is, you multiply -5 * 3 and that'll give you -15. So, it is equal to -15.
please help I am not sure what the answer is
