Answers
Yes. The first step is to set up the equations so that one unknown cancels out: here, the z's will cancel out:
5z+4y=-14
3z+6y=-6
-15z-12y=42
15z+30y=-30
8y=12
y=1.5
3z+6y=-6
3z+6(1.5)=-5-9
z=-14/3
Related Questions
2b-(3-b) + 4 = 11
I need to know how to show the work to get this answer
Answers
Answer:
10/3
Step-by-step explanation:
Simplifying 2b - (3-b) gives us:
2b - (3 - b) =
2b - 3 + b =
3b - 3
This makes our new equation:
3b - 3 + 4 = 11
Combine like terms
3b + 1 = 11
Subtract 1 from both sides
3b = 10
Divide both sides by 3
b = 10/3
cylinder has r = h and the radius is 4 cm. What is the volume?
Answers
Answer:
201.06 cm
Step-by-step explanation:
so if the radius and height is the same, height would be 4 cm.
volume formula for a cylinder: V=πr2h
answer: 201.06
I need this pls and thank you.
Answers
LET ME KNOW IF THIS HELPED
100 POINTS PLEASE ANSWER HONESTLY,
YOU ONLY HAVE TO DO HALF IF U WANT BUT IF YOU WANT BRAINILY DO FULL 100 POINTSSSSSSSSs
Answers
Answer:
2.−2b−8
4.12k−2
5.−32t−20
6.8g+17
7.3a−2
8.−15d+30
9.2a+2b
10.35a−21
11.10f−15
12.−2x+4
13.2a+20
Step-by-step explanation:
i will do the right part after u finish with the left oen if u don't understand it look at the letters to know which problem is the answer
Answer:
hes right the GUY ABOVE IS 100% right i swear on my life
Step-by-step explanation:
1. Find x in the right triangle shown. Round your answer to the nearest tenth.
7
9
2.0
5.7
11.4
16.0
Answers
Answer:
well ya see ifjfbfhhdnsjdudhsbsjsjsnehdhsiwnshdjsjsh
Solve for x and then find the measure of B
Answers
Answer:
x=6
b= 126
Step-by-step explanation:
8x+78 = 2x+114
8x-2x = 114-78
6x=36
x=6
--------
b=2x6+114
b= 126
There are 9 female performers in a dance recital. The ratio of men to women is 2:3. How many men are in the dance recital?
Answers
Answer:
6 men
Step-by-step explanation:
HELP GUYS THIS IS NOT FUNNY
WHAT IS 20 PLUS 20 IMCNOT LYING
Answers
Answer:
its 40 dude
Step-by-step explanation:
find the labeled points
Answers
Answer:
A= (6,76.5)
B =(32,18)
C=(80,0)
Step-by-step explanation:
The inequalities given are ;
3x + 8y ≥ 240
9x + 4y ≥ 360
x≥6
y≥0
The graph for the inequalities is as follows;
From the graph,
A= (6,76.5)
B =(32,18)
C=(80,0)
A spinner has 14 equal areas Numbered one through 14 if the spinner is spun one time what's the probability that the result is a multiple of 3 or a multiple of 2
Answers
Answer:
0.643
Step-by-step explanation:
Given that :
{1,2,3,4,5,6,7,8,9,10,11,12,13,14}
Multiples of 2 : 2, 4, 6, 8, 10, 12, 14
Multiples of 3 : 3, 6, 9, 12
P(multiples o
(Multiples of 2 n multiples of 3) = {2,3,4,6,8,9,10,12,14} = 9
Probability = required outcome / Total possible outcomes
Hence,
P(multiple of 2 or 3) = 9 / 14 = 0.643
The temperature of a city is 4 degrees Celsius Next day the temperature falls by 5 degrees Celsius what is the temperature of the city next day
Answers
Answer:
t
Step-by-step explanation:
tggt
Answer:
-1C
Step-by-step explanation
Set up the equation 4-5, which will give you -1
An oval running track is 1/5 mile long. Elena runs on this track, completing each lap in 1/20 of an hour. What is Elena's running speed? (in miles per hour)
PLEASE I NEED HELP ASAP
Answers
Answer:
5 miles per hour
Step-by-step explanation:
the answer is 5 miles per hour, sorry if I am wrong.
The sides of a triangle measure 2x + 5, X – 4, and
3(2x + 1). What is the perimeter of the triangle?
Answers
Answer:
9x+4
Step-by-step explanation:
perimeter= sum of all sides
perimeter= (2x+5)+ (x-4)+ 3(2x+1)
= 2x+5+x-4+ 6x+3
= 2x+x+6x+5+3-4
= 9x+8-4
=9x+4
Find the slope of the line that goes through the following points.
A. –1
B. 1
C. –4
D. –7
Answers
Answer: B) Slope is 1
Step-by-step explanation:
Y² - Y¹ divide by X² - X¹
Plug in: -3 - (-4) divide by 1 - 0
= 1 divide by 1
= Slope is 1
Given that 8 x − 3 y = 36 Find x when y = 3 Give your answer as an improper fraction in its simplest form.
Answers
Answer:
5.62
Step-by-step explanation:
8x-3y=36
8x-3×3=36
8x=36+9
x=5.62
Answer:
x= 45/8
Step-by-step explanation:
8x - 3y = 36
8x - 3(3) = 36
8x - 9 = 36
8x=45
x=45/8
help ive been stuck on this for a while now
Answers
Answer:
a. 18
b.10
c.64
Step-by-step explanation:
a. 27/3=9
9x3=27
9x2=18
b. 36/9=4
9x4=36
40/4=10
c. 48/3=16
3x16=48
4x16=64
Allex has a $20 bill. At the corner store, he buys a
bag of Hot Fries for $1.99 and 6 packs of gum. He
gets $11.77 in change. What is the price of one
pack of gum?
Answers
Answer:
First we need to subtract the hot fries. 20 - 1.99 = 18.01
he gets 11.77 so lets subtract it is 6.94 left so now divide by 6 is 1.5666666 or 1.6 per pack
Step-by-step explanation:
What is the area to 16 square feet
Answers
Answer:
1.48645ft
Step-by-step explanation:
brainliest plssss
For each percentage, find a matching statement to describe it.
10% of a number
25% of a number
50% of a number
75% of a number
80% of a number
100% of a number
Equal to that number
12 of that number
14 of that number
110 of that number
34 of that number
45 of that number
Answers
Answer:
mk,m
Step-by-step explanation:
mlmkm km
Factor the expression
C^2 - 2c - 63
Answers
Answer:
(c + 7) ( c - 9)
Step-by-step explanation:
Answer:
(c + 7)(c - 9)
Step-by-step explanation:
simplify 3x^2-2x+1
x=2
Answers
Answer:
9
Step-by-step explanation:
3(2)^2 - 2(2) + 1
3(4) - 4 + 1
12 - 3
9
so 3*4-4+1
12-4+1
8+1
=9
If it takes 20 minutes to drive to the store, 9 minutes to walk from your car to the back of the store, then back to the register, 2 minutes to walk back to you car, and 20 minutes to drive back why has my dad been gone for 9 years?
Answers
Answer:
Maybe he ran out of gas. Give him a bit time to refill, and you'll be fine :)
What type of decimal is 0.275?
Answers
Answer:
55/200 or real
Step-by-step explanation:
if you divide 55 by 200 you get .275. A real number is a number that is positive and above 0
Answer:
Rational
Step-by-step explanation:
0.275 is a rational number
Find the inequality represented by the graph.
Answers
Answer:
y < 3/4x
Step-by-step explanation:
Please let me know if you want me to explain how to do this problem :)
Can anybody help me with this ?
Answers
Answer:
1st scenario: 163.3°
2nd scenario: 125.2°
3rd scenario: 142.3°
Step-by-step explanation:
1st scenario: angles 1 and 2 form a linear pair and add up to 180
2nd scenario: angles 1 and 4 are same-side interior and add up to 180
3rd scenario: angles 1 and 8 are corresponding and equal; if angle 7 is 37.7 then angle 8 is 142.3 (they form a linear pair). Since angles 1 and 8 are equal then angle 1 is also 142.3
Somebody who know they math,help me!!!!!
Answers
Answer:-5 to -10 to 10 to 1
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
How to graph this slop (put a pic if u can )pls help due at 11
Answers
Answer:
hopes this help luv <3
Step-by-step explanation:
help me pls i don't know
Answers
Answer: so the a is 4 and the b is 3
that means you have to write 6+1+1 and that equals 8.
your answer is 8
Step-by-step explanation: in order to get that you have to replace a with 4 and b with 3, if you do you will see that they are simplified to 1. so if you add that the answer is 8. i hope this helped.
Find angles a, b and c?
Please help.
Answers
Answer:
B=112 degrees A=68 degrees and C=68 degrees
Step-by-step explanation:
the opposite angle of the 112-degree angle is the angle on the top left of the page, this means both of the angles are the same. You can then tell that that angle is the same as the one across from it because it shows on the page. You can then figure out the opposite angle which is B so that means angle B is equal to 112 degrees. To figure out angle A you can just do 180 minus the angle B which is 112 degrees. You now know angle A which is 68 degrees, now to find the angle C you just have to notise that angle C is the opposite angle of angle A. This means that algle C is also 68 degrees.
Answer:
a=112
b=68
c=112
Step-by-step explanation:
can someone help me answer this pls.
Answers
Answer:
a. {7,14}
b. {10,17,24,31}
c. (no)
Step-by-step explanation:
c. because for two different values of domain there is a single value of codomain (range )