Answer:
x = 4.125 or [tex]4\frac{1}{8}[/tex]
y = -0.875 or [tex]-\frac{7}{8}[/tex]
Step-by-step explanation:
5x + 3y = 18
3x - 3y = 15
3y and -3y can be cancled out becuase + and - cancel out and they both have 3y in them. We don't have to switch any signs in this case. You can just add them all exept 3y and -3y becuase they will be canceled out.
8x = 33
x = 4.125
Now we know what x is. We need to figure out what y is now. To figure out y chose an equation from the problem and plug in the x value. Lets chose 3x - 3y = 15.
3(4.125) - 3y = 15
12.375 - 3y = 15
-3y = 2.625
y = -0.875
Now we know what y is. I hope this helps :)
i need these asap ill give brainliest
Are you able to determine the volume of the cube with the information given? (Explain in complete sentences)
PLS HELP DUE SOON: (basically it's a retest) will give brainliest <3
please help me! will give brainliest
do #5 and#6
A cardboard box has a volume that is 6,336 cubic inches. A company creates a new design with the same proportions, but instead the dimensions are One-fourth the dimensions. Explain how you can find the volume of the new design without knowing the dimensions.
Answer:
Cube the scale factor 0.25. Then multiply the volume of the box by 0.015625.
Answer:
Since the dimensions have a proportional relationship, the new volume can be calculated using the original volume and the scale factor. The new volume will be the cube of the change, which is 1
64
. The new volume is the product of 6,336 and 1
64
.
Step-by-step explanation:
that is the sample answer.
Please help me ASAP!
Answer:y= 4x-2 and y-2=4(x-1)
Step-by-step explanation:
Answer:The answer in y=4x-2
Step-by-step explanation:
So, 4 is how man units it goes up at a time, -2 is the y intercept where it intercepts the Y axis and x is x Here is how to solve the first ordered pair the equation is 4(-1) -2 so 4 times -1 is -4 -2 so basically it is -4 +-2 so you get -6 so to solve the rest do what i just demonstrated just change x to 0,1,2 ect.
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
E
Step-by-step explanation:
I guess po.........
........
Ellena knows that 1/5 written as a decimal is 0.2. How can Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5?
The decimal equivalent for 9/5 without doing 9 divided by 5 is 4.5
How to convert from decimal to fraction?For conversion from decimal to fraction, we write it in the form a/b such that the result of the fraction comes as the given decimal. Usually, to get the decimal of the form a.bcd, we count how many digits are there after the decimal point (if its finite), then we write 10 raised to that many power as denominator, and the considered number without any decimal point as numerator.
WE are given that Ellena knows that 1/5 written as a decimal is 0.2.
Thus Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5
By multiplying 0.2 by 9 we can get the decimal equivalent of 9/5.
0.2 x 9 = 4.5
Hence, the decimal equivalent for 9/5 without doing 9 divided by 5 is 4.5
Learn more about place value here:
https://brainly.com/question/17983725
#SPJ2
Order the following numbers from least to greatest.
-2, 1.7, -5/2
Answer:
Step-by-step explanation:
－5/2<－2<1.7
use number line
I need help ASAP!!!!!!!! PLEASE CORRECT ANSWER!
A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.
A triangle ABC is shown. The base of the triangle extends into a straight line. The angle formed between this straight line and the edge of the triangle is marked as w. The angle adjacent to w is marked as z, and the other two angles inside the triangle are marked as x and y.
Step 1: m∠x + m∠y + m∠z = 180 degrees (sum of angles of a triangle)
Step 2: m∠w − m∠z = 90 degrees (corresponding angles)
Step 3: Therefore, m∠x + m∠y + m∠z = m∠w + m∠z
Step 4: So, m∠x + m∠y = m∠w
In which step did the student first make a mistake and how can it be corrected? (5 points)
Select one:
a. Step 1; it should be m∠x + m∠y + m∠z = 180 degrees (sum of corresponding angles)
b. Step 2; it should be m∠w + m∠z = 180 degrees (supplementary angles)
c. Step 1; it should be m∠x + m∠y + m∠z = 90 degrees (corresponding angles)
d. Step 2; it should be m∠w + m∠z = 90 degrees (alternate exterior angle)
Answer:
Step 2 D
Step-by-step explanation: Hopes this helps
Answer:
D is wrong
Step-by-step explanation:
Took the test
Pre-Algebra FLVS :)
Brainliest to the correct answer. Im stuck more on the question rather than the problem solving at hand if you know what i mean(if not just answer the question pls)
Answer:
0.17
Step-by-step explanation:
You can solve the following proportion by cross multiplying. What will the equation be after you cross multiply?
3/9 = x/15
Answer as much as you can will give brainliest if correct
Please help, I need help on this math question
Answer:
Probably C
Step-by-step explanation:
Repeating Decimal: a decimal where a number or a pattern of numbers repeats forever
For example, 0.2222... or 0.671671.... (The "..." means that it repeats like that forever)
A. 3/7= 0.142857142857142857... (6 repeating digits) This is a repeating decimal because the last six digits continue forever
B. 3/4=0.75. This number is not a repeating decimal because a repeating decimal goes on forever, while this only has two decimal places.
C. 1/9= 0.11111... This is a repeating decimal because it goes on forever and has a pattern (all are 1s)
D. 5/11=0.454545... This is also a repeating decimal because the last two digits repeat forever.
There is probably something wrong with the question (or your unit) because three of these numbers are, in fact, repeating decimals. If I were you, I would ask your teacher (it gets you respect from the teacher=more chance that they'll be lenient with you)
But if you really don't want to, I would go with "C" because it only has one repeating decimal place, and your curriculum probably says that a repeating decimal is only one digit.
Good Luck! :)
HELP!!! BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
its 1.20 for each pound for sure!
Step-by-step explanation:
all u gotta do is divide 4.80/4 and is 1.20 so yea that means 1.20 for each pound so it would be B the sec option! :) hope this helps
A particular type of cell doubles in number every hour. Which function can be used to find the
number of cells present at the end of h hours if there are initially 4 of these cells?
Answer:
The function would be
.This is in the general form
, where a is the initial value, b is the rate it increases by, and x is the amount of time. For our function, the initial value is 4 and the rate it increases by is 2.
Step-by-step explanation:
I have 2 questions. Please help! I will mark the Brainliest for the best answer(s)
1. Jane, Fay, and Henry had a total of $90. After Jane gave $12 to Henry and Fay gave $2 to Jane, all three of them had the same amount of money. How much money did each of them have in the beginning?
Jane has $__
Fay has $__
Henry has $__
2. The sum of three consecutive numbers is 723. Find the numbers.
The answer that is worth the Brainliest has all the answers to my questions, and is correct.
Answer:
1. J=20, f= 28, H=42
2. 240 + 241 + 242 = 723
Step-by-step explanation:
J= 30- 12= 18+2= 20
F= 30-2=28
H=30+12=42
2.
240 + 241 + 242 = 723
whats 5 + 4/23 x -34 Divide by ten is.....
P.s. i have to show my work sooooooo.....
i would guess bruhh tuff
I need help this is due today and i just need this one question. How can you find the unit rate or constant of proportionality for a relationship represented in a graph. I will give Brainleist.
Answer:
If the rate of change is yx , then so is the constant of proportionality. To simplify things, we set yx=k , where k represents the constant of proportionality. If you solve a yx=k equation for y, (like this: y=kx), it is called a direct variation equation.
in mrs. smiths class every time you turn in assignments you earn 1 homework pass. write 3 equivalent ratios of turned in assignments to homework passes
help please I need it
Answer:
Assignment to Homework: 3:9 4:12 5:15
Answer:
3:9 4:12 5:15
i think
Step-by-step explanation:
Estimate the percentage: 41 of 122
a. 0.3% c. 43.6%
b. 33.3% d. 3% Explain
Answer:
33.3%
Step-by-step explanation:
41/122 = approximately 0.333
Multiply this by 100 and you get your percent.
Answer:
b
Step-by-step explanation:
the answer is 33.61 but thats the closest
Help Help Help Help...What does it take for an orbiting spacecraft to escape its orbit?
Answer:
Manual Override??
Step-by-step explanation: I'm prop wrong
Answer:
To leave its orbit, the spacecraft must go very fast to break free of gravity.
Step-by-step explanation:
the quotient of a number x and 3 is at most 4
an inequality is ?
the solution is ?
Answer: The inequality is x/3 [tex]\leq[/tex] 4 and x [tex]\leq[/tex] 12
Step-by-step explanation:
The quotient of x and 3 is the same as x/3 and the at most sign is less than or equal to. x/3 has to be less than or equal to 4 which can be represented by the inequality,
x /3 ≤ 4 Solve for x by multiplying both sides by 3.
x ≤ 12
The sequence below shows the number bacteria Arjun observed each hour for a science experiment:
5, 20, 80, 320,1,280,..
Which recursive function describes the number of bacteria observed at the nth hour?
Answer:
Hope this helps!
Step-by-step explanation:
Ms. Kline is baking cookies. She wants to bake cookies for eight friends. Each friend needs to receive at least ten cookies. The recipe she is using makes 55 cookies in one batch.
1. How many batches of cookies does she need to bake to give each person ten cookies?
2. How many cookies will be left over?
write the range of the function f(x)=-(x+4)^2-3 using set notation
Answer:
(−∞,−3], {y|y≤−3}
Step-by-step explanation:
Is that a answer choice?
What is the product of 7x0.39
Answer:
2.73
Step-by-step explanation:
Product means the answer to the multiplication problem, where 7 and 0.39 are the factors, and you need to find the answer, which is the product. So, just multiply 7 and 0.39, and you’ll get 2.73. The product of 7x0.39 is 2.73
Hope this helps! :)
Yesterday noah ran 2 1/2 miles in 3/5 hour. Emily ran 3 3/4 miles in 5/6 hour. Anna ran 3 1/2 miles in 3/4 hour how fast in miles per hour did each person run? Who ran the fastest? !!SHOW WORK!!
Answer:
Step-by-step explanation:
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours
speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr
Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr
Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr
Anna was the fastest
Find the angle for a
Answer:
69
Step-by-step explanation:
the length of a rectangle is 5 feet and the width is x the perimeter is less than 15 feet write and solve an inequality to find the value of x
please help me with this and ill give you a brainlist
Answer:
5 ft * x ft
x ≤ 3 ft
Step-by-step explanation:
