Answers
Related Questions
Solve the system using addition. Use pencil and paper. Explain why the addition method is a good choice for solving the system. If you wanted to solve for x first, is the addition method still a good choice? Explain.
x-2.5y=12.5
-x+2.3y=11.9
Answers
Answer: the answers are x = -292.5 and y = -122
Step-by-step explanation:
Elimination is combining equations to obtain an equation with just one variable. This is only possible if the coefficients of one variable in both equations are opposed and will cancel each other out when put together. Elimination is most effective when it occurs naturally in the equations, but equations may also be modified to produce typical coefficients by multiplying or dividing equations by a given value. The next step would be to utilize the equation we devised to determine the variable's worth and then insert that value back into the original equation to determine the remaining variable.
For solving the question to find x we have to make the coefficients of y the same. for that, we will multiply the first equation by 2.3 and the second equation by 2.5.
After that, we get the 2 equations as
2.3x-5.75y = 28.75
-2.5x+5.75y = 29.75
then by adding the 2 equations we get
-0.2x = 58.5
and by dividing 58.5 by -0.2 we get
x = -292.5
substituting the value of x in any equations above we get
y = -122
I need help with this real quick ( 20 points) :)
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△ PQR is rotated by 180° in a counterclockwise direction about the origin to obtain △ P′Q′R′. What are the coordinates of △ P′Q′R′?
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Answer:
it is A
Step-by-step explanation:
Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cream cheese is 0.85b+2.5c dollars. Marie is bringing 30 bagels and 2 packages of cream cheese.
What price did Marie pay for the bagels and cream cheese?
Answers
Answer:
I don’t know this I just need points
Step-by-step explanation:
Answer:
$30.50
Step-by-step explanation:
(0.85*30)+(2.5*2)=30.5
Please help! Look at the picture.
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Answer:a c d!!
Step-by-step explanation: tbh I searched it up
Please help!!!!! 10 Points!! (i only have 23)
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Explanation:
Any number that was multiplied by less then one is going to be your answer. :)
Help please ASAP!! I will give brainliest!
Answers
Answer:
3/5 1/10
Step-by-step explanation:
1/5 divided by 1/3 is 1/5 times 3 which is 3/5
1/2 divided by 5
= 1/2 divided by 5/1
=1/2 times 1/5
=1/10
Answer: 1) 3/5 2) 1/10
Step-by-step explanation:
1) 1/5 divided by 1/3
then you take the reciprocal so the equation is now 1/5 times 3/1
and you get an answer of 3/5
2) 1/2 divided 5/1 (you put the one under the 5 cuz it's a whole number)
Take the reciprocal of the second fraction and flip the numerator and denominator so you get 1/5.
Then, do 1/2 x 1/5 which equals 1/10.
Hope that helped! :)
Without evaluating each expression, determine which value is the greatest.
Group of answer choices
(−756)÷(−934)
(−756)⋅(934)
(−756)+(−934)
756−934
Explain Reasoning
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Answer:
756−934 is the greatest because the others are more in the negatives
Step-by-step explanation:
Please help; I'd love for someone to help me with this question that makes no sense what so ever
Answers
Answer:
multiply 5 by 3.5
Step-by-step explanation:
3.5 times 5 = 17.5
Answer:
17.5
Step-by-step explanation:
scale factor = side x of figure B. / side label 5 of figure A
x = scale factor * side label 5 of figure A
x= 3.5* 5
x= 17.5
i gotta finish missing work, i'll give brainliest to whoever answers right
Answers
Answer:
Step-by-step explanation:
7. 6 + 1/2 + 1/2 = 7
8. shade it
9. 1.3 + 0.2 + 0.4 = 1.9 0.8 + 0.2 + 0.7 = 1.7
10. (2)(4)(5) = 40
(4)(5)(1) = 20
(5)(6)(0) = 0
hope dis helps ^-^
The question is in the picture below^^
Giving brainliest so no links
____________________________________________________________________
༶•┈┈⛧┈♛ ♛┈⛧┈┈•༶༶•┈┈⛧┈♛ ♛┈⛧┈┈•༶v༶•┈┈⛧┈♛ ♛┈⛧┈┈•༶----
Answers
Answer:
a.) 2 in.
Step-by-step explanation:
Answer:
A is your answer
Step-by-step explanation:
if you look you can see were the line stops. your welcome
And this one too please?
Answers
Answer:
54 in. square
Step-by-step explanation:
First, average the two lengths. Then, multiply that by the height. The average of 6 and 12 is 9, and 9 times 6 = 54.
Solve the following equation: x + 25 = 30
dont comment just for points cuz i will do the same to u
Answers
Answer:
5
Step-by-step explanation:
Answer:
X + 25 = 30
X + 25-25 = 30 - 25 = 5
Step-by-step explanation:
Gina has $87 in her piggy bank. She spends $32.67 on a gift for her sister. How much money does Gina have left?
Answers
Answer:$49.33
Step-by-step explanation:
87.00 - 32.67
= 49.33
Remember to add the dollar sign :D
$49.33
Answer: $54.33
Step-by-step explanation:
87.00
- 32.67
_____________
54.33
PLEASE HELP ASAP WILL GIVE BRAINLIEST TO BEST ANSWER
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PLZZZZZZZZ HELPP MEE BRAINLIEST
Answers
what the radius and diameter
Answers
Answer: 1. The Diameter is 25 and The Radius is 12.5
2. The Radius is 2 and The Diameter is 4
Step-by-step explanation:
NEED THIS ASAPPPPPP The circumference of a circular field is 175.84 yards. What is the radius of the field? Use 3.14 for pie and do not round your answer.
Answers
Answer:
Circumfrerence =pi d
So d=175.84/3.14
Step-by-step explanation:
Pls need help due in 20 mins- n no mfkn links pls pls plsss
Answers
Answer:
B
Step-by-step explanation:
speed is determined by the gradient
car 1 gradient = change in y / change in x = [tex]\frac{85 - 75}{17 -15} = \frac{10}{2} = 5[/tex]
car 2 gradient = 10
so car 2 is travelling faster than car 1
PLS PLS HELP I WILL MARK BRAINLIEST!
Answers
Answer:
Step-by-step explanation:
The answer is true
Because Any Integer can be a Rational Number
giving brainly answer quick noob
Answers
Answer:
Ok
Step-by-step explanation:
Answer:
g
Step-by-step explanation:
g
Consider the table:
Input value Output value
0 0
1 1
2 4
3 9
Which statements are true? Select all that apply.
The graph of the function will not form a straight line, so it is nonlinear.
The function is not proportional.
The function goes through the origin.
The difference between consecutive output values is a constant.
Answers
Answer:
1st 2nd and 3rd box
Step-by-step explanation:
1. It does not form a straight line because the output is not proportional. (it does not follow a pattern)
2. the line is not proportional because it does not follow a pattern or ratio of any kind (2468 is proportional because it follows the pattern of 2)
3. the origin is the coordinates (0,0) and the table has that labeled in the diagram therefore the graph does go through the origin
4. the output is not constant (output is 0149) because it does not show any sort of pattern. therefore the 4th box is incorrect.
What is the volume of the pyramid?
I will report if you send links
Answers
Answer:
The answer is 1133.33 i got it from go ogle so blame me if i got it wrong blame go ogle can i have Brainliest
Step-by-step explanation:
Answer:
66 2/3
Step-by-step explanation:
The way to solve this is The general volume of a pyramid formula is given as: Volume of a pyramid = 1/3 x base area x height. Where Ab = area of the polygonal base and h = height of the pyramid. Note: The volume of a pyramid varies slightly depending on the polygonal base.
What i did was i first tried to do 17 x 20 x 10 which game 3400 but when i remembered that V=1/3 x base area x height which would be 1/3 x 17 x 20 = 113 1/3 but if the base was 10 it would be 1/3 x 10 x 20 = 66 2/3. so i think the base is 10 and the answer would be 66 2/3
If i am wrong i'm sorry
2s+10-7s-8+3s-7
syplifying expression fyi
Answers
Answer:
-1+5z, -25+20y, 4d+14, 2n-2, 40k+8, 8b+5, -9+22p
Step-by-step explanation:
1) -4+7z+3-2z
-1+5z
2) 15+4(5y-10)
15+20y-40
-25+20y
3) 2d+17-3-2d+4d
4d+14
4) 12n-8-2n+10-4
2n-2
5) 8(2k+1+3k)
16k+8+24k
40k+8
5) 4(2b+2)-3
8b+8-3
8b+5
6) -4+8p-6p-5+20p
-9+22p
can someone please answer this and also PROVIDE AN EXPLANATION
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The base is always the bottom or foundation. To find this we need the area of the triangle at the bottom.
It is 8*6/2 or base times height divided by 2
We would get 24
This is our B value. Now height is 4 in they give us this.
Plug it in 24*4/3
We get 32 inches
Answer:ccccccccccccccccccccccccccccccc
Step-by-step explanation:
ANSWER FOR BRAINLIEST
The circumference of a circle is 17π ft. Find its radius, in feet.
Answers
Answer:
howdy
Step-by-step explanation:
2.71 is the answer i think
1. Name to pairs of complementary angles in the diagram.
2. Name to pairs of supplementary angles in the diagram.
(If you answer correctly i’ll give brainliest!)
Make sure to use three letters when naming each angle. For example, angle DEC
Answers
Answer:
Two pairs of the complementary angle-
(62,28) (40,50)..
Two pairs of supplementary angle-
(125,55) (90,90)..
Step-by-step explanation:
I hope this helps! lolz. <3
plz help will give brainlest
Answers
Answer:
90
Step-by-step explanation:
15x12=180
180/2=90
when 2 pipes fill a pool together, they can finish in 5 hrs. if one of the pipes fills half the pool then the other takes over the finishes filling the pool, it will take them 18 hrs. how long will it take each pipe to fill the pool if it were working alone?
Answers
Answer:
about 10 hrs each id say
Step-by-step explanation:
I just did 5 times two
The time taken to fill the pool if it were working alone is 18 hours.
What is multiplication?One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical sizes.
The symbols cross (×), asterisk (*), and dot (·) are used to denote multiplication. You most frequently utilize the cross when writing in your notebooks. In computer languages and algebra, the asterisk and dot are both utilized (higher mathematics).
Given:
When 2 pipes fill a pool together, they can finish in 5 hrs,
One of the pipes fills half the pool then the other takes over to finish filling the pool, it will take them 18 hrs
1 / 2 of pool = 9 hrs as given
full pool = 9 × 2 = 18 hours
Therefore, The time taken to fill the pool if it were working alone is 18 hours.
To know more about multiplication:
https://brainly.com/question/1135170
#SPJ6
solve the equation -2(x-5)=-14
Answers
Answer:
x=12
Step-by-step explanation:
-2(x-5)=-14
x-5=-2/-14
x-5=14/2
x-5=7
x=5+7
x=12
