Answers
Answer:
x = 6
y = 4
Step-by-step explanation:
5x - 7y = 2
x - 7y = -22 (Multiply by -1)
-x + 7y = 22
5x - 7y = 2
4x = 24
x = 6
x - 7y = -22
6 - 7y = -22
-7y = -28
y = 4
Related Questions
Sarah practices the piano 1/3 hour in the morning, 5/6 hour in the afternoon, and 4/5 hour in the evening.
How many hours did Sarah practice in all?
Answers
Two counters are selected at random from a bag containing 5 red counters and 3 blue counters.
Find the expected number of red counters selected.
Answers
Answer:
1.4
Step-by-step explanation:
Probability of selecting a red counter :
Number of red counter / total number of counters
5 / (5 + 3) = 5 /8 = 0.625
Probability of selecting a blue counter = 0.375
Let number of red counters :
0, 1 or 2
0 red counters :
Expected value = x * p(x)
0 + (0.625*1) + (0.390625 * 2)
0 + 0.625 + 0.78125 = 1.40625
Expected number of red counters = 1.4
(-1 1/4 divided by (-0.2)
Answers
Answer:
6.25
Step-by-step explanation:
What is the scale factor from the original triangle to its copy as a percent?
The picture is down below.
Answers
Answer:
scale factor = 20%
Step-by-step explanation:
A scale factor is a multiplier which can be used to determine the rate between two or more dimensions.
In the given figure, the sides of the original triangle is 5 times greater than that of the copy. Thus,
the scale factor = [tex]\frac{copy length}{original length}[/tex] x 100%
= [tex]\frac{1}{5}[/tex] x 100%
= 20%
The scale factor of the original triangle to its copy is 20%. This implies that the dimensions of the original triangle are multiplied by 20% to determine that of the corresponding copy triangle. Thus, we scale down the dimensions of the original triangle by 20%.
PLS PLS HELP PLS PLS PLS HELP PLS HELP PLS BOTH OF THEM PLS
Answers
Answer:
16. Right isosceles
17. D
Step-by-step explanation:
The triangle has a right angle this makes it a right trangle. Also all parallelograms are not squares, all rectangles aren't squares and all parallelograms aren't rhombuses.
16. right isosceles
17. C: all rectangles are squares
Joey made strawberry jam and raspberry jam. He made enough strawberry jam to fill 1/2 of a jar. If he made 2/5 as much raspberry jam as strawberry jam, how many jars will the raspberry jam fill?
Answers
Answer: 1/5 of a jar
Step-by-step explanation:
1/2 times 2/5= .2 = 1/5.
Answer:
1/5 of a jar
Step-by-step explanation:
I need this answer I’ll give brainliest
Answers
1^6 equals 1 and 11^2 equals 121
So 1+ 121
=122
Using π = 3.14, what is the circumference of a circle with a diameter of 28 units?
Round your answer to the nearest hundredth.
Answers
———————————————-
Please help me solve this.
Answers
Answer: 59
Step-by-step explanation:
Given
2b³+5 and b=3 ⇒ 2b³+5=2(3)³+5
Simplify exponents
2(3)³+5
=2(3×3×3)+5
=2×27+5
Multiplication
=54+5
Addition
=59
Hope this helps!! :)
Please let me know if you have any questions
Please help me with this question mark as A branlist please ASAP ASAP please ASAP
Answers
Answer:
x=18
y=27
explanation: 4 times 3 is 12
HELP FAST No DECIMAL plz!
Answers
Answer: 1,145,375 centimeters cubed
Step-by-step explanation:
Answer: 1,145,375cm I think
Step-by-step explanation:
simplify the expression.
Answers
Answer:
5^2
Step-by-step explanation:
Answer:
[tex]5^{2}[/tex]
Step-by-step explanation:
when dividing exponents with the same base (the number on the bottom) you subtract the exponents.
At the state fair, admission at the gate is $9. In addition, the cost of each ride is $2. Suppose that Reuben will go on x rides.
Reuben wants the total number of dollars he spends on admission and rides to be fewer than . Using the values and variables given, write an inequality describing this.
Answers
Answer:
i think you forgot to add how little he wants to spend
Step-by-step explanation:
Reuben wants the total number of dollars he spends on admission and rides to be fewer than ??? whats the number that he wants to spend
Poosjsjdiwjqjsnsjjdd
Answers
Answer:
poosjsjdwjqisnsjjdd
Step-by-step explanation:
Answer:
what's the question?
HEY GUYS COULD YOU HELP ME WITH THESE TWO QUESTIONS!!! DON'T WORRY YOU'LL GET YOUR POINTS!!
Answers
Answer:
i am unsure
Step-by-step explanation:
I HEART POINTS
x-y=12
Substitute: x-(94-x)=12
Distribute: x-94+x=12
Simplify: 2x=106
Solve: x=53
Plug x back into equation
x-y=12
53-y=12
y=41
x= 53, y=41
Second Question:
8+x=y
x+y = 66
Substitute: x+8+x =66
Simplify: 2x+8 =66
Solve : x=29
Plug x back into equation
x+y=66
29+y=66
y = 37
x=29, y=37
PLEASE SHOW YOUR WORK!!! WILL MARK BRAINLIEST!!!
On a youth soccer team 3 out of 12 team members have played in previous years. Based on this information, if 180 kids are in the youth soccer league, then how many could be expected to have played the year before?
Answers
Answer:
45
Step-by-step explanation:
3 out of 12 is 1/4, or 0.25, so if you divide 180 by 4, then using the same logic, you can expect 45 kids to have played last year.
3 = 1/4 OR .25 of 12, 12 divided by 4 = 3
180 divided by 4 = 45
Answer:
yes its 45 i did the test and i got an 100
Step-by-step explanation:
heres proof
PLEASE MARK BRAINLIEST!!!!!!Ben needs to replace two sides of his fence. One side is meters long, and the other is meters long. How much fence does Ben need to buy?
Answers
Answer:
696 39/100 meters
Step-by-step explanation:
Ben needs to replace two sides of his fence. One side is 367 9/100 meters long, and the other is 329 3/10 meters long. How much fence does Ben need to buy?
Side A = 367 9/100 meters
Side B = 329 3/10 meters
How much fence does Ben need to buy?
Total fence Ben needs to buy = Side A + side B
= 367 9/100 + 329 3/10
= 36709/100 + 3293/10
= (36709+32930) / 100
= 69639/100
= 696 39/100 meters
Ben needs to buy 696 39/100 meters
HELPPPPPPPPPPPPPppppppppp number 4
Answers
Answer:
3 dots
Step-by-step explanation:
This should be correct due to there only being 3 100% on the table
What is the area of a regular hexagon with an apothem of 28m in length
Answers
Step-by-step explanation:
can you check again the question , seems like something is missing.
Use the formula to find the simple interest:
$34,100 at 4% for 3 years
Answers
Answer:
$4092
Step-by-step explanation:
You are given the line y=-2x-5, and it then shifted up 2 units. Write your equation of the new line.
Answers
Answer:
i think the answer is 119943147893471987 yes its as easy as 1+1
Step-by-step explanation:
Answer: y=-2x-3
Step-by-step explanation:
A helicopter hovers 1150 feet above a small island. The figure shows that the angle of depression from the helicopter to point P is 39° How far off the coast to the nearest foot is island?
Answers
D = 1420 ft
SOMEONE PLEASE HELP I'VE BEEN ASKING FOR DAYS NOW WITH SCALE FACTOR!!!!! I will give brainliest if right!!!!!!
Answers
Answer:
It has been answered for you
See this:
https://brainly.com/question/23012157
Determine whether each set of data represents a linear, an exponential, or a quadratic function. (Desmos)
Answers
Answer:
Linear: The first and third one. (0,5) & (1,1)
Exponential: The second one (above). (-2, 1/16)
Quadratic function: The last one (below). (-3,35)
Step-by-step explanation:
The balanced scale represents the equation: 3x + 1 = x + 3
If one x block is subtracted from the right side and three numbered blocks are subtracted from the left side. What process will
balance the scale?
subtract one x block from the left side and subtract three numbered blocks
from the left side
subtract one x block from the left side and subtract three numbered blocks
from the right side
subtract one x block from the right side and subtract'three numbered
blocks from the left side
subtract one x block from the right side and subtract three numbered
blocks from the right side
Answers
Answer:
1 block is required in the process to balance the scale
Step-by-step explanation:
In order to get the process that will balance the scale, we need to solve the given expression for x as shown;
3x + 1 = x+ 3
Subtract x from both sides
3x+1-x = x+3 - x
3x - x + 1 = 3
2x + 1 = 3
Subtract 1 from both sides
2x + 1 - 1 = 3 -1
2x = 2
Divide both sides by 2
2x/2 = 2/2
x = 1
Hence 1 block is required in the process to balance the scale
i don’t know the answer please help
Answers
2) Check to see if x = 2 is the solution to this equation Explain your
reasoning with words and work. Be clear and completel
- 4x - 12 = 2x -8
Answers
-4(2)-12=-20
2(2)-8=-4
-20 does nothing equal to -4 which means x=2 is invalid
Multiply and combine like terms. Use^ for exponents. (2x-10)(3x-3)
Answers
Answer:
The answer is 5x - 13
Step-by-step explanation:
All we do is add the x's and the other numbers.
2 + 3 = 5 and 10 + 3 = 13
So, the equation is 5x - 13
Hope this helps! :)
What is the value of x?
5(x+2)=11
Answers
Answer:
X=1.8
Step-by-step explanation:
Step one: 5 times 1.8 equals 9.
Step two: 9+2=11
5x+10=11
5x=11-10
5x=1
Then divide both sides with 5( the coefficient of x)
So x= 0.2 or 1/5 still the same answer
Mark as brainleast plzzz
4x - 2y can be simplified as ____________
Answers
Answer:
4x - 2y can be simplified as 2(2x - y)
2•2x= 4x
2•-y= -2y