Solve the simultaneous equations
2x + 4y = 22
2x + 2y = 15
Answer:
1. x= 11+-27
2.x = 7.5 + -1y
Step-by-step explanation:
1. Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
2x + 4y + -4y = 22 + -4y
Combine like terms: 4y + -4y = 0
2x + 0 = 22 + -4y
2x = 22 + -4y
Divide each side by '2'.
x = 11 + -2y
Simplifying
x = 11 + -2y
2.Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
2x + 2y + -2y = 15 + -2y
Combine like terms: 2y + -2y = 0
2x + 0 = 15 + -2y
2x = 15 + -2y
Divide each side by '2'.
x = 7.5 + -1y
Simplifying
x = 7.5 + -1y
30% of___ is 15 ?????
Answer:
15 is 30% of 50
Step-by-step explanation:
We have, 30% × x = 15
Multiplying both sides by 100 and dividing both sides by 30,
we have x = 15 × 100/30
x = 50
If you are using a calculator, simply enter 15×100÷30, which will give you the answer.
PLEASE, PLEASE HELP D:
write the linear equation given :
1. slope = 1/4; y-intercept =7
2. slope = -3; y-intercept = 2/3
3. slope = 2/3; y-intercept = 2/3
4. slope = -2; y-intercept = -1/2
5. slope = -3/4; y-intercept = -3
Answer:
1. y =1/4x + 7
2.y =-3x + 2/3
3. y =2/3x + 2/3
4.y =-2x - 1/2
5.y =-3/4x -3
Step-by-step explanation:
By using the slope- intercept form of the equation, y=mx + b, where m=slope and b=y-intercept, you can substitute the values of slope and the y-intercepts into the formula y=mx + b
Mr. Heath is TRYING to grow his hair out! Currently, his hair is 0.25 inches long. Each month, it grows 0.5 inches. His goal is to have hair that is 2.5 inches long. Let x be the number of months that Mr. Heath grows hair. Which of the equations represents Mr. Heath's hair growth journey? *
Answer: 0.25 + 0.5x = 2.5
Step-by-step explanation:
0.25 = the how long his hair is right now
0.5 = how much it grows each month
X= how many months it takes to reach 2.5 inches of hair
2.5= how long he'd like his hair to be
HELP ASAP!! SOMEONE DO NUMBER 1 TO 4 FOR ME PLEASE IM RUSHING. ILL GIVE BRAINLIEST
Need correct answer only PLS
Which option identifies the sectors of the economy involved in the following scenario?
Joe owns a family farm in central Illinois. He goes to the bank for a loan for a new combine.
agriculture and services
services and industry
agribusiness and industry
agriculture and industry
Answer:
Step-by-step explanation:
A and c
Answer:
a
Step-by-step explanation:
Hope this helps:)
Evaluate the expression 42 + 5/9y
Please help me 20 points
Answer:
the thrird option
Step-by-step explanation:
For every two old homes in a neigborhood there are 3 new ones. Write the ratio of old homes to new homes.
Answer:
2:3
Step-by-step explanation:
Easy !
Quick !
Easy.
Answer:
2/5 or 40%
Step-by-step explanation:
there are 10 possible ways to choose 2 cards:
19,13
19,10
19,14
19,22
10,13
14,13
22,13
10,14
10,22
14,22
there are only 4 pairs whose sum is greater than 32:
19,14
19,22
13,22
14,22
Answer:
3/5
Step-by-step explanation:
The distance from any point on a circle to the center of the circle is the ____.
circumference
diameter
area
radius
Answer:
radiusStep-by-step explanation:
The distance from a circle's center to a point on the circle is called the radius of the circle. A radius is a line segment with one endpoint at the center of the circle and the other endpoint on the circle.
Answer:
The distance from any point on a circle to the center of the circle is the radius.
In the following equation, what is the y-intercept? y = -3.1 +7 03 o7
Answer:
the y-intercept, b, is 7
Step-by-step explanation:
Compare the given y = -3.1 +7 to y = mx + b. I must assume that you meant
y = -3.1x +7. It becomes evident that the slope, m, is -3.1 and the y-intercept, b, is 7.
A book 28 cm tall leans against the sidewall of a bookcase. The bottom of the book starts to slide away from the wall at a rate of 2 cm/sec. How fast is the top of the book moving down the wall when the bottom of the book is 12 cm from the wall?
Answer:
This is hard
Step-by-step explanation:
Answer:
[tex]\frac{3sqrt10}{10}[/tex]
Step-by-step explanation:
Alex took 5 exams in class. His scores on the first four exams were 75%, 68%,
92%, and 100%. What does Alex need to score on the fifth exam to have an
average of 85%?
90
086
94
82
write an improper fraction 3 4/5
Answer:
19/5
Step-by-step explanation:
hope it helps
Answer:
19/5 = 3 4/5
Step-by-step explanation:
hope this helps
is -2 greater than 4
Answer:
no
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
what is the y-intercept of the following equation:2x+y=5?
Answer:
Step-by-step explanation:
92
3/4g=−12
Help me plz
Answer:
g=-16
Step-by-step explanation:
Answer:
-16=g
Step-by-step explanation:
so -12 is basically -12/1
SO if you out them togther
3/4g=-12/1
Proportion
So you cross multiply
–48=3g
Now divide
g= -16
WILL GIVE BRAINLIEST TO FIRST TO RESPOND Shape 1 is similar to shape 2
Answer:
both are quadrilaterals
Step-by-step explanation:
A music store has 5 guitars for sale. Each guitar has 6 strings. The manager wants to replace all the strings. How many new strings does he need?
Answer:
30 strings
Step-by-step explanation:
Answer:
5 guitars...each has 6 strings
5 x 6=30
so 30 strings needed
"What is the scale factor of the following if YZG is dilated to RBP?"
Answer:
1/2
Step-by-step explanation:
PLEASE help me I WILL MARK BRAINLIEST
Answer: The answer is B
Step-by-step explanation:
-(5n-1\right)\left(25n^2+5n+1)
u gotta flip it and the answer is B on your screen!!!
Four friends did a job together that paid $85.20. How much should each get if they all get an equal amount? *
Answer:
21.30
Step-by-step explanation:
85.20/4
I need help I cant find my answer
Factor: -12 - 20
Answer 240
Step-by-step explanation: You multiply -12 x -20 which makes a positive bcuz negative x negative is positive and get 240
Hmmm.
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Step-by-step explanation:
11.55 is the greater number
Answer:
The answer is >.
Step-by-step explanation:
11.55 ? 11 1/2=
11.55 ? 11.50
Since 11.55 is greater than 11.50 so the answer will be >.
What is the square root of X with an exponent of 7?
Answer:
[tex] {x}^{3} \sqrt{x} [/tex]
Step-by-step explanation:
hope it helps ☺️
suggestions : Photomath application
it will be explained you about how to find solutions.
PLEASE HELP ME! THANK YOU IF YOU DO!
Answer:
100,000 ÷ 1.25
100,000/1.25
80,000/1
80,000
The unit cost of the piece of land is 80,000 per hectare
Step-by-step explanation:
Solve: m = 5 – (-10).
GIVING BRAINLIST to people who is correct!
Answer:
15
Step-by-step explanation:
Solve the proportional
equation below:
7/5 = a/8
Answer:
11 1/5 hope this can help you
Step-by-step explanation:
Answer:
Step-by-step explanation:
if we have the proportion
7/5=a/8
a=(7*8)/5=56/5= 11 1/5
What's 20 – 2 > 16 simplified?
Step-by-step explanation:
To reduce this fraction, simply divide the numerator and denominator by 2 (the GCF). So, 216 = 2÷216÷2 = 18. Thus, 216 is equivalent to 18 in the reduced form. thank you