y= -32
Step-by-step explanation:
step 1: from the first equation you will make X the subject of formula, the equation then becomes;
X= 4-y
2
step 2: substitute X in the second equation, the equation then becomes 5 * [4-y] + 3y = -6
[ 2]
step 3: find the LCM and then cross multiply; 20-5y+6y = -6
2
20+y = -12
y= -12-20
y= -32
Simplify the expression:
k–3k+5k
Answer:
3k
Step-by-step explanation:
k-3k = -2k
-2k+5k = 3k
..........
Using a calculator, what is csc(24°)? Round to 2 decimals.
Answer:
2.46
Step-by-step explanation:
csc24° = 2.45859
Solve the following quadratic equation by rearranging and then factorising x^2 + 3x - 15 = 2x - 13
Step-by-step explanation:
x² + 3x - 15 = 2x - 13
x² + x - 2 = 0
(x + 2)(x - 1) = 0
By zero product rule, (x + 2) = 0 or (x - 1) = 0.
Hence x = -2 or x = 1.
Answer:
x = -2 & x = 1
Step-by-step explanation:
x^2 + 3x - 15 = 2x - 13 so you takeaway 2x and add 13 to the other side to get x^2 + x - 2 = 0
(x+2)(x-1) = 0 find factors of -2 that get you x
(x+2) = 0 so x = -2 (x-1) = 0 so x = 1
I need help cause I’m lazy to do it myself it’s 4 in the morning
Answer:
C. Mario should have multiplied the x-values by $6.50 to get the y values.
Step-by-step explanation:
Let's do it the way they said. If we were to multiply 1 by 65, it would be $65. If we did the same thing for 2, 2 x 65 is $130. This is incorrect because these values do not match up with the ones on the graph.
Decimal points are important in this case because it completely changes your answer. When you multiply 1 by 6.50, you get 6.50. Which is what's on the graph. Multiply 2 by 6.50 and you'll get $13, and so on.
So now we can conclude that the mistake Mario made was that he multiplied x by the wrong value (65), when it should have been $6.50.
Note: Hope this helps! Good luck on your test. :)
Put the numbers in descending order 25% 3/4 2.8x10
Answer:
3/4 25% 2.8x10
Step-by-step explanation:
I need help with a math question
Please help me, thank you
Just divide 1,300 by 5.
260 would be your answer. If you want an explanation, if you think about the term 100%, that's the total at the time. Amplifying that 100% by five would practically mean five times the amount of 100%, so 500%. You're just multiplying the amount of bunnies at the time by 5. (500% in decimal form is 5)
A line with a slope of 1/3 passes through (-5,r) and (4,1).
To make this work correctly, the value of r=
Answer:
r=-2
Step-by-step explanation:
your welcome :D also if there's another answer could you give me brainliest pls
Please help WHAT IS THE PERCENT OF 39.8 out of 200 QUICK PLEASE
Answer:
19.9%
Step-by-step explanation:
39.8/200 = 0.199 (move decimal two times)
19.9%
or you can just see what number get 200 to 100, which is by dividing by 2. What you do to the bottom you do to the top so 39.8/200 (divide both sides by 2) = 19.9/100
which is 19.9%.
Ace Carlos
answer pls : y- (-3y)
Answer:
4y
Step-by-step explanation:
When you subtract an already negative number then the two "minus signs" will become one addition sign and it just becomes y + 3y which is 4y
(Just for example: x- (-8x) would turn into x + 8x and the answer would be 9x)
PLEASE HELP ME ASAP!!!!
Please help me I need the correct answer!!
Answer: ok so i think the answer is 4.2 or 5.2 if im wrong then well sorry
Step-by-step explanation:
Answer:
I think it is B
Step-by-step explanation:
pls help will give brainisest.
Find the length of A.
Answer:
If i'm correct I think that the length of a would be 4 because it shorter then five just by a minuscule measure .
Step-by-step explanation:
Which number is a reasonable estimate for 637x35?
Answer:
20,000
Step-by-step explanation:
if you multiply those numbers you get 22,295 which rounds to 20,000
Estimate:
26k
Out of the answer choices you commented on another answer, that's the one I chose.
Will mark brainliest
The office worker can stamp 25 letters per minute.
At that rate, how many letters can the worker stamp in 5 minutes?
5 letters
20 letters
100 letters
125 letters
Answer:
125 letters
Step-by-step explanation:
Hope this helps!
Write 264 as a product of primes. Use index notation when giving your answer.
Answer:
2^3 times 11 times 3
Step-by-step explanation:
264
/ /
2 132
/ /
2 66
/ /
2 33
/ / 11 and 3
What is the largest 2-digit composite number divisible by 46?
Answer:
92
Step-by-step explanation:
its 92 because its is a 2-digit number and is considered composite because its divisible by 2, 4, 23 and 46
The largest 2-digit composite number divisible by 46 is 92 and this can be determined by using the definition of composite numbers and by arithmetic operations.
Given :
Number - 46
The following steps can be used to determine the largest 2-digit composite number divisible by 46:
Step 1 - Remember that composite numbers are those numbers that are divisible by more than two numbers.
Step 2 - The two-digit composite numbers which are divisible by 46 are 46 and 92.
Step 3 - The largest number between 46 and 92 is 92.
So, the largest 2-digit composite number divisible by 46 is 92.
For more information, refer to the link given below:
https://brainly.com/question/1669816
1. An initial population of 10 cats triples every year. How many cats will there be in 5 years? Make a table and
graph your results.
Answer:
150
Step-by-step explanation:
file is graph
2.1.PS-14
Error Analysis A contractor purchases 7 dozen pairs of padded work gloves for $97.44. He
incorrectly calculates the unit price as $13.92 per pair for the expense report. What is the correct
unit price? What is the error?
The correct unit price is $
per pair
Answer:
Unit price = $1.16
His error was he divided $97.44 by 7 when in fact he should have divided 97.44 by 84
Step-by-step explanation:
7 dozen pairs
1 dozen = 12
7×12 = 84
97.44 ÷ 84 = 1.16
(1 + 2/3)*(1+2/5)*(1+2/7)*(1+2/9)
Answer: 11/3 or 3.6 or 3 2/3
Step-by-step explanation:
All you have to do is simplify the expression
THIS IS URGENT PLZ HELP!!
Answer:
a^-b= 1/a^b
a^b/a^c= a^b-c
a^c/b^c= (a/b)^c
Step-by-step explanation:
Those are the right answers.
ASAP PLEASE HELP! THANK YOUU
Work out the surface area of the solid cuboid.
8m
5m
2m
Answer:
Step-by-step explanation:
T.S.A=2(LXW) + 2(LXH) + 2(WXH)
=2(8mx5m) + 2(8mx2m) + 2(5mx2m)
=(2x40m²) + (2x16m²) + (2x10m²)
=80m² + 32m² + 20m²
=132m²
Toy Universe is manufacturing a new toy and deciding on a price that will result in a maximum profit. The graph below represents profit (P) generated y each price of a toy (x).
**Graph is attached below (sorry the picture is bad quality)**
Part A: If the company wants to make a maximum profit, what should the price of a new toy be?
Part B: What is the minimum price of a toy that will produce profit for the company? Explain your answer.
Part C: Estimate the value of P(10) and explain what the value means in the problem and how this may be possible.
Part D: If the company wants to make a profit of $137, for how much should the toy be sold.
Part E:Find the domain that will only result in a profit for the company and find its corresponding range of profit.
Part F: The company owner believes that selling the toy at a higher price will result in a greater profit . Explain to the owner how selling the toy at a higher price will affect the profit.
Answer:
A: $6
B: $2.01
C: $0
D: $4.50 or $7.50
E: 0 ≤ x ≥ 10
F: The more expensive you make the toy then that will mean that less people will want to buy it for its high price.
Step-by-step explanation:
{Data Expunged}
1/2n + 2n + 3/2n - 1
Answer:
B
Step-by-step explanation:
Answer:
next question is a1= 1 and r=2
have a nice day :)
Step-by-step explanation:
HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!
Identify the three similar right triangles in the given diagram.
Α. ΔΕFH, ΔEFG, ΔΕGH
Β. ΔEFH, ΔEGF, ΔFGH
C. ΔEHF, ΔEGF, ΔFGH
D. ΔΕFH, ΔEFG,ΔFGH
Answer:
Β. ΔEFH, ΔEGF, ΔFGH
Tyler ate x fruit snacks, and Han ate less than that. Write an equation to represent the relationship between the number Tyler ate (x) and the number Han ate (y).
The ratio of males to females was 4:5. If there are 180 people at the fair how many males
are there?
9514 1404 393
Answer:
80
Step-by-step explanation:
Let m represent the number of males. Then you have ...
m/(180 -m) = 4/5
5m = 4(180 -m) . . . . cross multiply
9m = 720 . . . . . . . . add 4m, simplify
m = 80 . . . . . . . . . . divide by 9
The number of males at the fair was 80.
4) Which expression is equivalent to 9(9m + 3t) ? 6.EE.A.3"
5 points
A) 18m + 3t
B) 81m + 3t
C) 18m + 12
D) 81m + 271
