Answers
2(-6x - 7y = -10)
-12x -14y = -20
8x + 14y = 4
-12x - 14y = -20
--------------------
- 4x + 0 = - 16
x = -16/-4
x = 4
> use x = 4 in either equation to find y
8(4) + 14y = 4
32 + 14y = 4
14y = 4 - 32
14y = -28
y = -28/14
y = -2
8x + 14y =
4 | : 2
-6x - 7y = -10
4x + 7y = 2
-6x - 7y = -10
4x - 6x = 2
- 10
- 2x = - 8
2x = 8
x = 4
8x + 14y = 4
14 y = 4 -
8x
14y = 4 - 8*4
14y = 4 - 32
14y = 28
y = 2
Related Questions
How many more barrels of gasoline then diesel were produced last year gasoline 34% diesel 29% total crude oil -60 million barrels Total
Answers
Answer: 3 million barrels
Step-by-step explanation:
Given :- Total crude oil= 60 million barrels
Quantity of gasoline = 34% of total crude oil
[tex]=0.34\times60\text{ million barrels}\\=20.4\text{ million barrels}[/tex]
Quantity of diesel = 29% of total crude oil
[tex]=0.29\times60\text{ million barrels}\\=17.4\text{ million barrels}[/tex]
Clearly, Quantity of gasoline is more than Quantity of diesel
difference = Quantity of gasoline-Quantity of diesel
[tex]20.4\text{ million barrels}-17.4\text{ million barrels}\\=3\text{ million barrels}[/tex]
Therefore, The production of gasoline is 3 million barrels more than diesel last year.
3 million more barrels of gasoline then diesel were produced and this can be determine by using the arithmetic operations.
Given :
Gasoline is 34% of total crude oil.Diesel is 29% of total crude oil.Total crude oil = 60 million barrels.The quantity of Gasoline = 34% of total crude oil
[tex]=\dfrac{34}{100}\times 60[/tex]
= 20.4 million barrels
The quantity of Diesel = 29% of total crude oil
[tex]=\dfrac{29}{100}\times 60[/tex]
= 17.4 million barrels
Quantity of Gasoline - Quantity of Diesel = 20.4 - 17.4 = 3 million barrels
Therefore, 3 million more barrels of gasoline then diesel were produced.
For more information, refer the link given below:
https://brainly.com/question/22122594
Let f(x) = 6x2 + 5 and g(x) = 3x - 5. Find f(g(0)).
Answers
g(0) = 3(0) -5
g(0) = -5
then you do f(-5):
f(-5) = 6(-5)2 +5
simplify the expression 5 square2 square18
Answers
___________________________
5 * √2 * √18 = 5 *√36 = 5 * 6 = 30 .
___________________________
Note: "√2 * √18 = √36 " .
___________________________
Other method:
___________________________
5 *√2 * √18 = ?
___________________________
Note: "√18" = √9 * √2 :
So; " 5 * √2 * √18 =
5 * √2 * √9 * √2 =
5 * √2 * 3 * √2 =
5* 3 * √2 * √2 = ?
Note: "√2 * √2 = 2 " .
__________________________________
5 * 3 * 2 = 30 .
__________________________________
The answer is: " 30" .
__________________________________
Katie is drawing dots on cards to show ways to make 5. Draw dots for Katie. Write addition sentences for two of the cards.
Answers
(Dot)
(Dot) (Dot) 1 + 4
2 + 3
Dot Dot Dot Dot
Dot
4 + 1 = 5
Dot Dot Dot
Dot Dot
3 + 2 = 5.
Hope This Helps You!
Good Luck :)
- Hannah ❤
a bouquet had 10 flowers and sold for $90 how much would a bouqet of 5 flowers cost?
Answers
$90 ÷ 10 = $9
A single flower would cost $9.
Now, all you would have to do is multiply the cost per flower by the number of flowers.
$9 × 5 = $45
I would cost $45 for a bouquet of 5 flowers.
I hope this helps!
Madelynne hopped 12 times in 15 seconds what is her hops per minute
Answers
Your answer would be 720 hops per 15 minutes, which would simplify to be 48 hops per minute
Hope this helps!
Macon eats 33 animal crackers as a snack every day after school. How many animal crackers does she eat during a 5 day school week
Answers
C when they brought their baseball cards, Ethan’s card worth $4 more than Maysa’s card
D when they brought their baseball cards,Ethan card was worth $5 more than Maysa’s card
Answers
Answer:
A is the answer because $5 is the amount when Maysa started out, and $1 is the amount when Ethan started out. So it is A .
Step-by-step explanation:
when a number is a multiple of 5 what are the possible values for one digit
Answers
a lab tech wishes to mix 70% saline and 20 % saline to prepare 500ml of a 40% solution what amount should be used in the mix
Answers
Answer:
20 and 400 and 70 and 100
Simplify. Remember to write the powers as a positive number.
1. a^−8
2. 1/a^−4
3. a^−2*b^5
4. a^−2*b^−7*c^−8
5. a^2*b^−7*c^−8
6. a^−2*b^7*c^−8
7. a^−2*b^−7*c^8
please answer asap! good points!
Answers
what is the value of the 4 in the number,5,679.04
Answers
The value of the 4 in the number 5,679.04 is 4,000.
Explanation:The value of the 4 in the number 5,679.04 is 4,000. In the given number, 5,679.04, the digit 4 is in the thousands place, which means it represents 4,000.
Final answer:
The value of the 4 in the number 5,679.04 is in the thousandths place.
Explanation:
Place value is a fundamental concept in mathematics that assigns a numerical value to each digit in a number based on its position. The rightmost digit represents the units, the next digit to the left represents tens, and so on.
For example, in the number 60, the digit 6 is in the tens place, indicating 6 tens or 60. Understanding place value is crucial for performing arithmetic operations and comprehending numerical relationships.
Thus,
The value of the 4 in the number 5,679.04 is 4,000.
In the given number, 5,679.04, the digit 4 is in the thousands place, which means it represents 4,000.
help with geometry pleasee
Answers
b=46
c=24
d=30
I hope this helps
B = 46 degrees
A = 80 degrees
D = 30 degrees
Angle Eand angle F are supplementary. the measure of angle E is 54 more than the measure of angle F. find the measure of each angle
Answers
2x+54=180
2x=126
x=63
A local coffee shop serves 2/9 as many customers as a shop run by a national coffee chain. The shop run by the chain serves 502 customers a day. About how many customers does the local shop serve in a day
Answers
Answer:
116
Step-by-step explanation:
502/9*2
About 57.8*2
115.6
Round up to 116
The local shop serves about 116 customers a day.
Answer:
The correct answer should and is 116.
solve the system of equation 2x-9y=14 x=-6y+7
Answers
So you can replace the x in the first equation:
2*(-6y+7)-9y = 14
distributive law
-12y+14-9y = 14
-21y+14=14
-14
-21y = 0
:(-21)
y = 0
Now you replace the y in the seccond equation with 0
x = -6*0+7
x = 7
ANSWER: x is 7 and y is 0
To solve such problems we must know about the system of equations.
The system of the equation will give a unique solution at point (7, 0).
Given to us2x - 9y = 14x= - 6y + 7SolutionEquation 1
2x-9y=14
as the value of x is already given in equation2, therefore, substituting the value of x in equation 1, we get,
[tex]2(6y+7)-9y=14[/tex]
[tex]-12y+14-9y=14\\ -12y-9y =14-14\\ -21y = 0\\ y =0[/tex]
Equation 2[tex]x= - 6y + 7[/tex]
Substituting the value of y,
[tex]x= - 6(0) + 7\\ x= 7[/tex]
VerificationThe system will give a unique solution at points x=7, and y=0, this can be verified by plotting the two equations on the graph.
Hence, the system of the equation will give a unique solution at point (7, 0).
Learn more about the system of equation:
https://brainly.com/question/12895249
What is the answer to 46.25 divide by 5 - 2
Answers
If it's (46.25 ÷ 5) - 2, then the answer is 7.25
Find the y-intercept of the line:
9x + 3y = -18
Question 7 options:
(0,-6)
(0,6)
(-2,0)
(3,9)
Answers
I'm not 100% sure!
Hope I could help!
Answer: (0,-6)
Step-by-step explanation:
Which set of numbers is a geometric sequence?
2, 3.5, 4, 5.5,
4, 12, 36, 108,
35, 29, 23, 17,
256, 64, 16, 8,
Answers
Answer:
4, 12, 36, 108 is set of geometric sequence.
Step-by-step explanation:
Given : geometric sequence.
To find : Which set of numbers is a geometric sequence.
Solution : We have given geometric sequence.
In a Geometric Sequence each term is found by multiplying the previous term by a constant.
Like : {a, ar, ar², ar³, ... }, where , a = first term , r = common ration .
We can see sequence 4, 12, 36, 108 in form of 4 , 4*3 , 4 (3)² , 4( 3)³.
Here, common ration is 3.
Therefore, 4, 12, 36, 108 is set of geometric sequence.
solve the proportion 3x/10=9/4
Answers
this is because you would cross multiply to get 12x=90. You would have to isolate the variable by dividing both sides by 12. that leaves you with x=7.5
First solve the numerical side:
9/4 = 2.25
So now we know:
3x/10 = 2.25
Multiply both sides by 10:
3x/10 x 10 = 2.25 x 10
Simplify it:
3x = 22.5
Divide both sides by 3:
3x/3 = 22.5/3
Simplify it:
x = 7.5
3(7.5)/10 = 9/4
Hope This Helps You!
Good Luck :)
- Hannah ❤
A seal dove 95 meters below the surface of the water to reach a fish. It traveled 18% of the total distance every second. What was the depth of the seal after 5 seconds? (1 point)
Answers
17.1 × 5 = 85.5
Therefor, your answer is 85.5 meters.
Hope is helps :)
Answer:
Depth of seal in 5 seconds = 85.5 meters
Step-by-step explanation:
Distance between a seal and fish = 95 meters below the surface of the water
It traveled 18% of the total distance every second so distance covered in one second = 18% of 95
= 95×0.18
= 17.10 meters
And distance covered in 5 seconds will be = 17.10 × 5 = 85.50 meters
Therefore, depth of the seal in 5 seconds will be 85.5 meters
The ages of Edna, Ellie, and Elsa are consecutive integers. The sum of their ages is 108. What are their ages?
Answers
The ages of Edna, Ellie, and Elsa are 35, 36, 37 respectively.
What is meant by consecutive integers?For any integer say 'a', its consecutive integers will be → (a + 1), (a + 2), (a + 3), .... , (a + n).
Given is the sum of ages of Edna, Ellie, and Elsa is 108.
Assume that the age of Edna is x.
Then the ages of Ellie and Elsa will be (x + 1) and (x + 2) respectively.
From the question we can write -
x + (x + 1) + (x + 2) = 108
3x + 3 = 108
3x = 105
x = 35
So, we can write -
Age of Edna = 35
Age of Ellie = 36
Age of Elsa = 37
Therefore, the ages of Edna, Ellie, and Elsa are 35, 36, 37 respectively.
To solve more questions on Ages, visit the link below-
https://brainly.com/question/2284261
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Someone came into a store and stole 100 dollars from the register. The person returned 5 minutes later and purchased 70 dollars in merchandise with the same 100 dollars he stole I gave him 30 dollars change. How much money did the store loose.
Answers
The purchase of the $70 item for $100 cash with $30 change is a perfectly fair purchase. The store received $100 cash, and the store gave $70 worth of merchandise plus $30 cash.There was no loss to the store there.
The fact that $100 in cash was stolen earlier from cash register means the loss is $100. The legitimate transaction does not affect the loss.
If you have a hard time understanding the loss is $100, then think of it this way.
Reverse the order of the two happenings.
A person walked into a store and bought a $70 item with a $100 bill. He received $30 change. So far, there is no loss to the store. Everything is legit.
That customer later came back to the store and stole $100 from the cash register.
Here we see clearly that the loss is exactly $100. It is simply the $100 stolen from the cash register.
425,. ,339 what is in between
Answers
a pizza with a diameter of 8 inches cost $10 a pizza with a diameter of 14 inches costs $16 whitch is the better buy explain you thinking
Answers
Final answer:
To find the better buy between the two pizzas, we calculate the cost per square inch for each. After determining the area of each pizza, the calculations show that the 14-inch pizza offers the better value at $0.104 per square inch, compared to the 8-inch pizza's $0.199 per square inch.
Explanation:
To determine which pizza offers the better buy, we need to calculate the price per square inch of each pizza. First, we find the area of each pizza using the formula for the area of a circle, A = πr^2, where r is the radius (half the diameter).
For the 8-inch pizza: radius = 4 inches. So, A = 3.14 × (4)^2 = 50.24 square inches.
For the 14-inch pizza: radius = 7 inches. So, A = 3.14 × (7)^2 = 153.86 square inches.
Next, we calculate the cost per square inch:
8-inch pizza: $10 / 50.24 square inches = $0.199 per square inch.
14-inch pizza: $16 / 153.86 square inches = $0.104 per square inch.
Therefore, the 14-inch pizza offers the better value at approximately $0.104 per square inch, as opposed to the 8-inch pizza's $0.199 per square inch.
Please help me with math please, they are number lines.
Answers
I don’t understand number 4
Answers
2.15
3.105
4.90
these are the answers
75+75 = 150
150 + 90 = 240
240 + 75 = 316
360 - 316 = 44
Angle 1 = 75 degrees.
Angle 2 = 75 degrees Angle 3 = 150 Angle 4 = 90
Cayley says that the equations p=1.5q and 2/3p q both represent the same proportional relationship. Mariah says that can't be true because the constants of proportionality are different. With which student do you agree? Explain.
Answers
[tex] \frac{2}{3} p=q[/tex]
Multiplying both sides by [tex] \frac{3}{2} [/tex] gives us
[tex] \frac{3}{2} \cdot \frac{2}{3}p= \frac{3}{2}q\\ p= \frac{3}{2}q [/tex]
So the second equation is equivalent to the first equation. That means both equations represent the same proportional relationship. Cayley was correct.
Answer:
cayley
Step-by-step explanation:
cuz i said so djsndkwndmdksnsnsnsnsnsns
distributive property of (9×3)+(9×8)
Answers
which equation shows y +1/5=3x in standard form A.15x+5y=-1 B.15x-5y=1 C.5x-15y=1 D.15x-5y=-1
Answers
3x - y = 1/5...multiply by 5
15x - 5y = 1 <==
5y + 1 = 15x
15x - 15y = 1 <------------standard form
answer
B.15x-5y=1