Answer:
R = 4
s = -3
Step-by-step explanation:
r + 4s = -8
3r + 2s = 6
there are several ways to solve this system but i chose the elimination method and multiplied the second equation by -2 to get:
-6r - 4s = -12 and added it to the first equation
+ 1r + 4s = -8
-5r = -20
r = 4
plug in to find 's': 4 + 4s = -8
4s = -12
s = -3
5. A number m is less than – 3 or greater than or equal to 1.
write the sentence as an inequality.
Answer:
m < -3 or m ≥ 1
Step-by-step explanation:
Phil is riding his bike. He rides 15 miles in 3 hours, 30 miles in 6 hours, and
45 miles in 9 hours. What is Phil's constant rate (k) in SIMPLEST FORM. *
4 points
1/5 miles per hour
3/15 miles per hour
5/1 miles per hour
5 miles per hour
Answer:
5 miles per hour
Step-by-step explanation:
2 cups of white grape juce; 4 cups of club soda. what is the ratio
Answer:
2:4
Step-by-step explanation:
Answer:
2:4
Step-by-step explanation:
Put the following fractions in order from GREATEST TO LEAST.
1/2 7/8 3/4 2/2
PLEASE HELP
Answer:
2/2, 7/8, 3/4, 1/2
Step-by-step explanation:
First you have to change it in to fractions that all have the same denominators. 4/8, 7/8, 6/8, 1
Now you put them in order.
If possible please explain!
Answer:
distributive to 4 and 2 thats all i could think of sorry
Step-by-step explanation:
Which fraction, when written as a decimal, gives repeating decimals? a. 4 1/8 b. 1 1/4 c. 6/13 d. None of these PLSSS HELP ME OUT!
Answer:
d. None of these
Step-by-step explanation:
A perfect example of a fraction, when written as a decimal gives repeating decimals, is 1/3.
ill mark u brainliest if u get it right
what is 3 ( x+2) using distributuve propert
Answer:
3x+6
Step-by-step explanation:
just multiply 3*x=3x and 3*2=6 so 3x+6
I am thinking of a number i multiply by 11 and add 22 i get the same answer if i miltiply by 4 and add 113 whats my number
Answer: 13
Step-by-step explanation:
Let the number that in thinking of be represented by x.
I multiply by 11 and add 22 will give the same answer as multiplying by 4 and adding 113. This.csn be firmed into an equation as:
(11 × x) + 22 = (4 × x) + 113
11x + 22 = 4x + 113
Collect like terms
11x - 4x = 113 - 22
7x = 91
x = 91/7
x = 13.
The number is 13
394.6 divided by 2 plssss help
Answer: 197.3 ok bye
Step-by-step explanation:
Answer:
197.3
Step-by-step explanation:
Last year at a certain high school, there were 50 boys on the honor roll and 75 girls on the honor roll. This year, the number of boys on the honor roll increased by 8% and the number of girls on the honor roll increased by 24%. By what percentage did the total number of students on the honor roll increase?
Answer:
17.6%
Step-by-step explanation:
50×8%=4
75×24%=18
4+18=22
50+75=125
22÷125=17.6%
Answer:
14.4 percent increase
Step-by-step explanation:
If I was doing -3n - 24
which of the following Is a binomial?
A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4
Option (A) 7x+21 is the binomial as it has two terms option (A) is correct.
What is polynomial?Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.
[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]
We have shown some expressions:
Binomial has two terms
A. 7x+21
It is a binomial.
B. 3/x
It is not a binomial.
C. 8x²+6x+5
It is trinomial as it has three terms
D. 19x⁴
It is monomial as it has only terms.
Thus, option (A) 7x+21 is the binomial as it has two terms option (A) is correct.
Learn more about Polynomial here:
brainly.com/question/17822016
#SPJ2
7. Two friends worked out on treadmills at the gym. Laura walked 7 miles in
1.75 hours. Ricki walked 12 miles in 2 hours. How much faster did Ricki
walk? *
0.25 mile per hour faster
2 miles per hour faster
They walked the same speed.
He didn't, Leo walked faster.
Answer:
Step-by-step explanation:
Laura walked 7/1.75=4 miles per hour
Ricky walked 12/2=6 miles per hour
Ricki is 2 miles per hour faster
A bracelet that regularly sells for $44 is on sale for 15% off. Find the sale price of the bracelet. Use dollar signs with your answer. *
Answer:
The answer would be $37.40
Step-by-step explanation:
The sale price would be the current price which is 44 - 15% of itself.
It is 15 percent off, so 44 x 0.85 would be the equation, since the now price is 85 percent of the original price.
44 x 0.85 = 37.40
dollar signs ;)
Answer:
$33.00
And here's a link to the quiz i think your taking. (Its a answer key)
https://quizizz.com/admin/quiz/5c90d54dd7b2aa001fb8e8b8/-applications
Raul is flying a kite with an angle of elevation equal to 60° if the height of the kite is 300 feet then now long is the kite string.
Answer:
ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
Step-by-step explanation:
its d
10 pt logs mark brain
Answer:
It's log 420
Step-by-step explanation:
Hep need please and thanks
Which right triangle's unknown leg measure is 43 units? Assume the given length are in the same unit of measure.
60
12
\/44
8
5
90
|/21
19
) Intro
Done
Answer: the fourth triangle
Step-by-step explanation:
I got it right :)
Answer:
The 4th triangle
Step-by-step explanation:
Solve expression completely.
64°
O
1
O 64
O Unknown
Answer:
b
Step-by-step explanation:
A bread recipe calls for 4 eggs for every 1 ½ pounds of flour you use. If you had 12 pounds of flour, how many eggs would you need to make all the bread that you could? Hint: set up a proportion.
Answer:
you would need 36 eggs
Step-by-step explanation:
you need 36 eggs because you can put 1/12 into 12 9 times without going over and 9 times 4 is 36.
(Please help asap!)
Max, James, and Karl have a total of 1020 video game achievements combined.
Karl has half the number of achievements that James has.
Max has 219 achievements.
How many achievements does James have?
Monica would like to earn at least $150 a week, and her parents have told her she cannot work
more than 20 hr. each week. What is the least hourly rate should she look for in order to meet her?
Plz help I’ll give u brainliest
Trigonometry please help
50 pts
Answer:
Its A :)
Step-by-step explanation:
Robert deposits $ 3000 in State Bank of India for 3 year which earn him an interest of 8%. How much money does have in TOTAL after 3 years with interest? Show your steps to support your answer.
Answer:
$3779.14
Step-by-step explanation:
I'm going to assume that the interest is compounding annually
We have the following equation
PV(1+i)ⁿ
Plug in our numbers and we have
3000(1+.08)³
3000(1.259712)=3779.136 which rounds to 3779.14
i need help i'm really stuck
Answer:
8
Step-by-step explanation:
If the area is 32 and the formula for area of a triangle is base * height / 2, and you have base = 8 and height = x and area = 32, this would be:
8 * x / 2 = 32
Now, solve:
[tex]8x/2=32\\4x=32\\x=8[/tex]
Answer:
x=8
Step-by-step explanation:
Area is equal to half of the base times the height. We are told that the area is 32and the base is 8, so we can write this equation:
32=1/2(8)h
Multiply 1/2 by 8:
32=4h
Divide both sides by 4:
h=8
So now we know that x (the height) equals 8.
HTH :)
If you drove 95 miles in 2 hours, how long will it take you to drive 415 miles at the same speed?
Answer:
4 hours (3.46)
Step-by-step explanation:
NEED ASAP!!!!!!!!!!!!!!!simply 495/500
Answer:
0.99
Step-by-step explanation:
Add the following complex numbers: (2 + 3i) + (3 - 2i)
Answer:
5 + i
Step-by-step explanation:
Combine real part ans combine imaginary parts
2 + 3i + 3 - 2i = 2 + 3 + 3i - 2i
= 5 + i
Answer:
5 and 1i
Step-by-step explanation:
So you’re adding the following complex numbers: (2 + 3i) + (3 - 2i)
normally if you see a (-) in front of a number, that means it’s negative so we’re gonna think about this as -2i and positive 3.
so you’re gonna want to take the 2 regular while numbers (without the variable) and then add those together. they’re like numbers so neither of them have a variable, which means they can easily be added, but you can’t add a number like 7 to a number like 9h because there’s a variable.
Now that you’ve added the 2 and 3, you get 5 right? so now you’re gonna take the 3i and -2i, and add those together. since the number 3i is bigger than -2i, the ending number after you add those is gonna be positive, and it’s gonna be 1i.
now i’m not sure if you’re supposed to make an equation out of this but you’re answer will be 5 and 1i or 5 + 1i
also if you don’t want to put 1i, 1i is the same as just “i”. so you can put 5 + i :)
hope this helped!!
NEED HELP ASAP ILL GIVE BRAINLIST
What is the area of the circle below?
A
5.64 square meters
B
7.85 square meters
C
15.7 square meters
D
19.625 square meters
Answer:
I think it is C
Step-by-step explanation: