Step-by-step explanation:
-(3x+y=32)
3x-2y=17
-3x-y=-32
3x-2y=17
-3y=-15
y=5
3x+(5)=32
-5. -5
3x=27
x=9
Answer:
x=9
y=5
Answer:
x = 9
y = 5
Step-by-step explanation:
3x + y = 32...(1)
3x - 2y = 17....(2)
multiplying equation (1) by 2 we get,
6x + 2y = 64...(3)
Adding eq(2) and (3) we get,
6x + 2y = 64
+ 3x - 2y = 17
----------------------
9x. = 81
therefore, x = 81/9
therefore, x = 9
substituting value of x in eq( 1)
3 * 9 + y = 32
27 + y = 32
y = 32 - 27
y = 5
Chris can type 150 words in 4 minutes. How many words can he type in 1 minute?
Answer:
37.5
Step-by-step explanation:
37.5 wpm
Answer:
37.5 words per minute!
Step-by-step explanation:
Chris can type 150 words, dividing the amount of words by the minutes can give us the rate per minute.
150/4= 37.5 words per minutes
You just found the rate of which Chris types per minute!
Dividir 254 en tres partes tales que la segundasea el triplo de la primera y 40 unidades mayor que la tercera
Responder:
x = 40
y = 120
z = 80
Explicación paso a paso:
Número dividido = 240
Las 3 partes:
x, y, z
y = 3x
Z = 3x - 40
x + y + z = 240
x + 3x + 3x - 40 = 240
7x - 40 = 240
7x = 240 + 40
7x = 280
x = 280/7
x = 40
y = 3 (40)
y = 120
z = 3x - 40
z = 3 (40) - 40
z = 120 - 40
z = 80
IM AWARDING POINTS AND BRAINLIEST ITS DUE ASAP
The expression (3x^7)^4 is equivalent to cx^n. What is the value of c?
Answer:
the answer would be c=81x^28-n I hope it helps!
Answer:
c=81x^28-n
Step-by-step explanation:
[tex]c=81x^{28-n}[/tex]
Select ALL of the expressions that are equivalent to 3(8-4x)
A. 24 - 12x
B. 2( 12 - 6x )
C. 24 - 4x
D. 12x - 24
E. - 12x + 24
Answer:
A and B are the correct
Step-by-step explanation:
= 3(8 - 4x)
= 24 - 12x
so, A . 24 - 12x
B . 2(12 - 6x)
24 - 12x
PLS HELP ME ITS DUE AT 4
Explain why these two equations are different
5(x+4)=60 and 5x+4=60
Step-by-step explanation:
When you use the distributive property, you multiply everything inside the parentheses by the number outside of the parentheses. When you distribute, the equation becomes 5x+20=60 vs 5x+4= 60. Hope this helps!
How many dollars per hour greater is the hourly rate for Company G than Company H?
Answer:
3
Step-by-step explanation:
company g is charging 10 per hour and in the graph when it is zero hours it shows the base charge which is 25 but in addition when you add an hour if you subtract that amount minus the flat amount 25 you will get 7 and will continue to do so as you continue across the graph 10-7 equals 3
Please help. It would hep a lot
Answer:
a) The rate of how much rain falls each hour.
b) The y-int in this is (0,0) but which means how much inches of rain there wee before it started raining. (doesn't make sense but that's how it works lol)
c) 4.8 inches.
3/5 x 8 = 4.8 inch
Step-by-step explanation:
6th grade math help me pleasee
Answer:
The height above ground level of a rider on a roller coaster over the duration of the ride
Step-by-step explanation:
Answer:
The one that says roller coaster in it.
Step-by-step explanation:
The rest are constant rates so they shouldn't be going up and down on a graph. Since the roller coaster height goes up and down and not straight, it would look like what is shown on the graph.
A dress that regularly costs $85 is on sale for $40. What is the percen
markdown?
Answer:
53%
Step-by-step explanation:
Use percent decrease formula.
= 85-40/85
= 45/85
≈ 0.53
= 0.53 * 100%
= 53%
Best of Luck!
"twice as old as y decreased by 10
Answer:
2y = 2(-10) = -20
Step-by-step explanation:
What is the distance between the points (0,0) and (6,8)
Answer:
(6,8)
Step-by-step explanation:
6 to the left and 8 up
Answer:
i think its its 8 squares north but ion know nothing about this.
Step-by-step explanation:
Find the percent error in this situation:
Estimated value: 231
Actual value: 215
0.074%
7.4%
0.069%
6.9%
Answer:
7.4 % is percent error
Step-by-step explanation:
https://brainly.com/question/21689164
The percent of error is 7.4%. The correct option is B.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
Estimated value: 231
Actual value: 215
To find the percentage:
First, the value,
= 231 - 215
= 16
Now,
let n be the percentage.
So,
16 = n x 215/100
n = 1600/215
n = 7.4%
Therefore, 7.4% is the error.
To learn more about the percentage;
https://brainly.com/question/24159063
#SPJ6
10 / 16 = n / 19
round to the nearest 100th if needed
Answer:
exact form is 95/8 decimal form 11.875 and mixed number form n= 11 7/8
please help me with this i need it
Step-by-step explanation:
25.74- 8.58=x/4.29
Ben counted the number of days that pizza was served in the school cafeteria. He calculated the experimental probability of the cafeteria serving pizza is 5/6 . Which of the following is the best interpretation of this probability?
Question 1 options:
It is neither likely nor unlikely that the cafeteria will serve pizza tomorrow.
It is likely that the cafeteria will serve pizza tomorrow.
It is unlikely that the cafeteria will serve pizza tomorrow
Answer:
It is likely that the cafeteria will serve pizza tomorrow
Step-by-step explanation:
A function is a mathematical rule that.....
A. Has one or more exponential expressions
B. Can be graphed as a straight line
C. Sends every input to only one output
D. Sends every output to only one input
Answer:
B
Step-by-step explanation:
A function can be graphed as a straight line, as long as it isn't vertical.
Shareen walked a total of 8.68 miles in a walk-a-thon. If her average speed was 2.8 miles per hour, how long did it take Shareen to complete the walk?
Answer:
3 hours and 12 minutes
Step-by-step explanation:
8.96 ÷ 2.8= 3.2
I know that 2/10 of 60 is 12
3.2= 3hrs & 12 mins
Might be wrong
Triangle Sum Practice - Digital
Find the value of x, and then use that value to determine each angle measure of the triangle.
Rodney can wash 24 windows in an hour how many windows can he wash in 1/8 of an hour
Answer:
3
Step-by-step explanation:
24x (1/8) = 3
hope this helps
Which of the following figures does not have a line of symmetry?
Answer:
it should be C
yes or no ? i need help
Answer:
Yes it is linear
Step-by-step explanation:
What is the slope of (4,6) (-1,-4)
Answer:
the slope is 2, I hope it helps!
In the following picture ABCD ~ AEFG.
Which equation can be used to find the value of x?
When Martin graduates college, he is gifted $1,200 and puts the money into a savings account that earns 2.2% annual interest. How much money will Martin have in 2 years? How much money will Martin have in 5 years?
Answer:
2 years = 1252.80 5 years =1332
Step-by-step explanation:
1,200 x 2.2% = 26.4
26.40 x 2 = 52.80
1200 + 52.80 = 1252.80
26.40 x 5 =132
1200 + 132 =1332
Please please answer will give brainliest
Answer:
D. (Jesse with a score of 75)
Step-by-step explanation:
Abby has 15/20 on her quiz, and we can convert that to 0.75. We can turn 0.75 into 75 points in her quiz.
Jesse has 18/30 on her quiz, and we can convert that to 0.60. We can turn 0.60 into 60 points in her quiz.
0.75 > 0.60, so Jesse has more.
Answer:
Jesse has the better score
There are 5 red marbles 8 blue marbles and 12 green marbles in a bag what is the theoretical probability of randomly drawing either a red marble or blue marble? 52% 20% 13% 32%
Answer:
Step-by-step explanation:
should be 52%
Answer:
probability of five red marbles or 8 blue Marbles is 13/25...
so this is 52%
- What is the area of the parallelogram below?
4in
2.8 in
9in
Answer:
100.8
I hope this helps:D
Answer:
100.8
Step-by-step explanation:
multiply 4 2.8 and 9 and you get 100.8
Helpp plzzz I will mark brainliestttt
Answer:
1/2
Step-by-step explanation:
AC to A'C'=3/6=1/4
AB to A'B=2/4=1/4
Hope this helps! :)
Catherine and Fred have water bottles and each hold one liter of water period friends, water bottle is one half full period, Catharines water bottle is 28 ths full period which statement can be used to find out. Those water bottles has more water
circled all the correct answers
Answer:
what are the answer choises
Step-by-step explanation:
help me plzzzz, trigonometry!! I'll give brainliest!!!
... i dont know what I'm doing, dont mind my x and y handwritten stuff
Answer:
Step-by-step explanation:
tan47=x/18
x=18tan47
cosCDB=7/x
cosCDB=7/(18tan47)
CDB=arccos(7/(18tan47))
CDB=68.74