Answer:
y = 245 / 7, x = 29
Step-by-step explanation:
make both into ax + by = c format which is
Math:
5x + 2y = 245
-5x + 5y = 30 <== 5 (- x + y = 6) to cancel out the x since it has a negative already.
[(Side Note) if both were positive then you would need to do
EX: - 5 (- x + y = 6)]
Continued:
7y = 275 ==> 7y/7 = 245/7
y = 245 / 7
Plug it in the most convenient one which has the equation y = x + 6
and tweak it a bit
x = y - 6
x = 245 / 7 - 6 ==> 245 / 7 - 42 / 7
x = 203 / 7 ==> 29
Find the sum.
75+(−30)
Answer:
[tex]75 + ( - 30) \\ = > 75 - 30 \\ = > 45[/tex]
Hope helpful <3
For this linear equation, give the number by which you would multiply the terms in each equation in order to eliminate one of the variables. Then solve this system:
5x+2y=-1; 3x+7y=11
This would be a big help if you also include the process to help me understand the answer!
Answer:
Step-by-step explanation:
The solution to this system of linear equations 3x – 2y = 14 and 5x + y = 32 is (x, y) is (6, 2).
Answer:
Step-by-step explanation:
If we choose to eliminate x, multiply the first equation by -3: -15x - 6y = 3
and multiply the second by 5: -15x - 35y = 55
Note that this allows us to eliminate x. We get:
-6y = 3
-35y = 55
which sum up to -41y = 58. Thus, y = -58/4.
Emily has fixed monthly expenses that are taken directly out of her bank account.
Emily wants to know how much money she must deposit in her account each month to cover these expenses.
How can Emily use an additive inverse to find this amount?
Answer:
Emily must deposit each month.
Step-by-step explanation:
As you know that Additive inverse of any number
A = - A, For example additive inverse of 2 is - 2
or additive inverse of (-2) is 2.
Now, According to the question given
Emily has fixed monthly expenses that are taken directly out of her bank account.
As she wants to know, how much money she must deposit in her account each month to cover these expenses.
So, Expenses are Additive inverse of Deposit or Deposit are additive inverse of Expenses.
Out of the given Options Option D which is, Emily can add (-48) + (-12) + (-44) to find her total expenses. The additive inverse of this number is the amount Emily must deposit each month. is correct
(*^.^*)
34 POINTS! 3 QUESTIONS.
I'm not good at math at all so help would be great
Thank You!
Answer:
1. 17^3
2.10^9
Step-by-step explanation:
the first one you subtract the exponents
the second one you multiply the exponents
the percent equivalent to Fraction 1 Over 40 Fraction.
Answer:
2.5%
Step-by-step explanation:
first things first youre gonna wanna BRING OUT THAT AWESOME CALCULATOR ok now:
enter 1 and then divide by sign, and then 40 and press Enter/equal sign.
we get:
0.025
BUT WAIT! we must multiply 0.025 by 100
we get 2.5%
Answer:
2.5%
Step-by-step explanation:
The fraction in question is 1/40, or 0.025. The percent equivalent is found by multiplying this result by 100%:
(100%)(0.025) = 2.5%
Zack fills bird feeders with birdseed. Each bird feeder holds 2 1/2 cups of birdseed. Zack’s scoop holds 1/4 cup.
How many scoops will Zack use to fill both bird feeders?
1. How many cups of seed does Zack need to fill both bird feeders? Show how you found your answer
2. Write an expression for the number of scoops Zack needs to fill both feeders
3. Evaluate the expression to find the number of scoops Zack needs. Show your work
1. How many cups of seed does Zack need to fill both bird feeders? Show how you found your answer
[] He will need 5 cups of seed to fill both bird feeders
[] 2 1/2 * 2 = 5
2. Write an expression for the number of scoops Zack needs to fill both feeders
[] 1/4x = 5
[] If his scoop hold 1/4 cup, then however many scoops (x) he does should equal 5.
3. Evaluate the expression to find the number of scoops Zack needs. Show your work
[] 20 scoops
[] 1/4x = 5 -> x = 20
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
1. How many cups of seed does Zack need to fill both bird feeders? Show how you found your answer
* He needs 5 cups of seed to fill both bird feeders .
steps : 2 1/2 * 2
= 5
2. Write an expression for the number of scoops Zack needs to fill both feeders
If the scoop hold 1/4 cup , no matter how many scoops (unknown )should equal 5.
steps : 1/4x = 5
3. Evaluate the expression to find the number of scoops Zack needs. Show your work
* 20 scoops
* steps : 1/4x =
5 -> x = 20
hope it helps have a good day :>
Andre was trying to write 7⁷/ 7⁻³ with a single exponent and wrote 7⁷/ 7⁻³ = 7⁴⁻³ = 7¹ Explain to Andre what his mistake was and what the answer should be.
!!!!!!HELLLP!??!! Meeeeeee????? PLEASEEEEE!!!!
Answer:
I say B?
I think im wrong so wait till someone else answers to.
please do question number nine. PLEASE SHOW WORK!! will give brainlest!!
Answer: 1.25
Step-by-step explanation:
brainliest me
Stan's cookie recipe makes 24 cookies and calls for exactly 384 sprinkles. He is wondering how many sprinkles (p)eft parenthesis, p, right parenthesis he will need to make 60 cookies. He assumes each cookie will have the same number of sprinkles.
How many sprinkles does Stan need to make 60 cookies?
Answer:
960 sprinkles
Step-by-step explanation:
x = sprinkles
For this problem we will create a ratio
[tex]\frac{24}{384} :\frac{60}{x}[/tex]
24x=384*60
24x=23,040
x=23,040/24
x=960
Stan would need 960 sprinkles!
Hope this helps!
(pls mark as brainiest)
Thanks!
Answer:
960.
Step-by-step explanation:
Please answer the picture
Answer:
5(4x−3)
Step-by-step explanation:
20x−15
= 5(4x−3)
Answer:
20x−15
= 5(4x−3)
Step-by-step explanation:
I could not find the answer to this ANYWHERE, write the sentence as an equation. The total of 156 and C is the same as 314
Hello!
This equation is written like this:
156+c=314
Hope this helps!
~Just a cheerful teen
#CarryOnLearning
[tex]SilentNature :)[/tex]
(Help asap!) Select Is a Function or Is not a Function to correctly classify each relation.
which one is a function and which is not?
{(3,2),(6,4),(9,6),(12,8)}
{(2,3),(2,5),(3,6),(9,4)}
{(2,4),(6,3),(4,8),(6,6)}
{(3,4),(5,2),(6,8),(6,4)}
Look at the PDF and help plz all do all questions AND SHOW THE WORK PLZ OR IT WILL FAIL. use the standard algorithm to show it
math 8th grade
____________________________________
Answer:
[tex]given \: => \: s = \frac{2x + t}{r} \\ = > 2x + t = rs \\ = > 2x = rs - t \\ = > x = \frac{rs - t}{2} [/tex]
so..
option (1) is correct!!
hope helpful <3
Answer: Option 1 because of inverse operations
Step-by-step explanation:
I need help ASAP atleast in the 1 hour rn
Answer:
x = 2
Step-by-step explanation:
6 (x+2)
6x+12
rewrite the equation:
6x = 12
divide 6 on both sides:
6x over 6 divided by 6 over 12 =
x = 2
Can some1 pls help me with this:
Answer:
your answer is none of these
Step-by-step explanation:
refer the attachment
gamsahamnidaWhich of the following fractions represent 87.5%
d) None of this
Find −3(−1.25). You may find using a number line to be helpful. −3(−1.25) =
Answer:3.75
Step-by-step explanation:
3x1=3, 3x0.25=0.75 3+0.75=3.75, it’s positive because you’re multiplying 2 negatives
Answer:
3.75 is the answer I think
Step-by-step explanation:
Do you mean solve it? If so then thats my answer I simplified it.
Jessica ran on the track team at her school. She finished a 200-meter race in 54 seconds.
1. What was Jessica's average speed, in meters per second, for the 20-meter race?
Jessica ran in a 50-meter race next. On this shorter distance, Jessica's speed was 1 meter per second faster than her speed in the 200-meter race.
How many seconds did it take Jessica to complete the 50-meter race?
Answer:
I'm not sure but I think its 54 meters per second
Question 10(Multiple Choice Worth 1 points)
(04.01 LC)
Marneshia walked three over eight of a mile in three over five of an hour. What equation can be used to calculate her unit rate in miles per hour?
a three eighths over three fifths = five eighths mile per hour
b three eighths over three fifths = one and three fifths miles per hour
c three fifths over three eights = one and three fifths miles per hour
d three fifths over three eights = five eighths mile per hour
Answer:
The Answer is A
Step-by-step explanation:
First you take 3/8 and 3/5. After that, you put 3/8 over 3/5. To get Miles per Hour, you want to put distance over time. Next you invert and multiply. When you are doing this you want to have it looking like this: [tex]\frac{3}{8}[/tex] * [tex]\frac{5}{3}[/tex]. Finally you multiply the top and the bottom and reduce the fraction. Your final answer will me 5/8.
The circle below has an area of 314 square centimeters, and the square inside the circle has a side length of 2 centimeters.
What is the probability that a point chosen at random is in the blue region?
A. 2/157
B. 2/155
C. 155/159
D. 155/157
Answer:
D
Step-by-step explanation:
Did with a teacher!
Answer:
D 155/157
Step-by-step explanation:
of the 400 of the sixth graders at school, 60% want more library books. how many students want library books?
Answer:
240
Step-by-step explanation:
it’s simple math!
Since 60% of the 400 kids want more Library books, all you need to do is:
100% - 60% = 40%
find 40% of 400:
400 x 0.4 = 160
then subtract 160 from 400 to get 60%:
400 - 160 = 240
therefore 240 is your answer! :)
please mark brainlest!
have a nice day!*v*
Answer:240 6th graders want library books Step-by-step explanation:
Given the slope and y-intercept of the line, write the equation in slope-intercept form.
URGENT WILL GIVE BRAINLIEST!!
Answer:
[tex]y=3x-5\\y=\frac{5}{6} x\\y=-4x+1[/tex]
Step-by-step explanation:
Slope intercept form:
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept.
With those already given, you need only plug them in to the formula:
[tex]y=3x-5\\y=\frac{5}{6} x+0\\y=-4x+1[/tex]
Answer:
3: y = 3x - 5 4: y = 5/6x 5: -4x + 1
Step-by-step explanation:
I just use y = mx + b
x and y are the coordinates and m is the slope of the line (you could find the slope of a line by using rise over run or (y2 - y1) over (x2 - x1)) The y-intercept or b is the point where the line hits the y axis.
Hope this helps a lot!!!
ASAP!!! A proportional relationship is shown in the table below. X: 0 0.3 0.6 0.9 1.2 Y: 0 1 2 3 4 What is the slope of the line that represents this relationship? Graph the line that represents this relationship.
Mrs. James displayed the factor tree at the right complete the factor tree to find the number that has prime factorization of 2 to the 4th powerx3
Answer:
48
Step-by-step explanation:
2^4x3=48
2x6=6
(2x2) x (2x6)= 48
The prime factorisation is for the number is48.
What is prime factorisation?Prime factorisation is a method to find the prime factors of a given number, say a composite number. These factors are nothing but the prime numbers. A prime number is a number which has only two factors, i.e. 1 and the number itself. For example, 2 is a prime number which has two factors, 2 × 1.
Given here, 2⁴×3 =48
The complete tree diagram for 48 is as follows
48
/ \
4 × 12
/ \
2×2 × 2×6
/ \
3 × 2
Hence, this is the full tree diagram.
Learn more about prime factors here:
https://brainly.com/question/14452738
#SPJ2
Please Help :(
Look at the imagine pleaseeeeeeeeeeeeeeeeee
This graph shows the weights of some rocks in Jonathan's rock collection.
Weights of rocks
How much heavier is the heaviest rock than the lightest rock?
Write your answer as a proper fraction, mixed number, or whole number.
Answer:
5/8oz.
Step-by-step explanation:
7/8-2/8=5/8
=5/8oz.
Hope this helps :)
Sam has $372 and Mark has $12.26. What is the difference? Who has more?
Make a plan-how will you solve the problem?
Show your work
Answer:
359.74
sam has more
Step-by-step explanation:
372 - 12.26 = 359.74
372 > 12.26
Answer:
372 - 12.26 = 359.84
372 > 12.26
The difference is 349.84, and I know this because I substracted 12.26 from 372. I know that Sam has more money because 12.26 is less than 372
how do -11.5 and -9.5 compare? choose the correct symbol.
a: <
b: >
c: =
Answer:
-11.5 < -9.5
Step-by-step explanation:
The larger the negative number, the less value. So when you compare -11.5 to -9.5, -9.5 is larger in value.
Write the sentence as an equation.
248 more than the quantity 78 times a equals a
I need sombody to check my answer because I don’t have PAPER
Answer:
300 + r = 217
Step-by-step explanation:
300 -> 300
added to r -> +
is the same as -> =
217 -> 217
Put this in one equation and you get:
300 + r = 217
If you need to solve for r (need to isolate r to solve for r):
300 + r = 217
r = 217 / (-300)
r = -0.723333333