Select the correct answer.
What is the solution to this system of equations?
3x+y=17
x+2y= 49
OA. It has no solution,
B.
It has infinite solutions.
OC. It has a single solution: x = 15, y= 17.
OD.
It has a single solution: x= -3, y = 26.
Answer:
one solution: x = -3, y = 26
Step-by-step explanation:
3x + y = 17
x + 2y = 49
If you multiply the first equation by -2 and then add you will eliminate the 'y' term
-2(3x + y) = -2(17)
-6x - 2y = -34
+ x + 2y = 49
-5x = 15
x = -3
-3 + 2y = 49
2y = 52
y = 26
I don't get it, the concept is to make a proof, but I'm so confused!!!!
Answer:
Try Finding What A And B Is...
Step-by-step explanation:
Is x = 6 a solution to the equation 5(x – 3) = x + 13?
Answer:
x=6 is not a solution
Step-by-step explanation:
We can substitute 6 as x to find out:
5(6-3)=6+13
first, because of PEMDAS we'll do 6-3
5(3)=6+13
multiply 5 by 3 and add 6 and 13
15=19
Since the statement is not true, that means that x=6 is not a solution
Hope this helps!
someone help ASAP!!!! Please it would mean so much if you helped me!
Please somebody HELP!!!! 100 PTS!!!
log1/2 8 = -3 1/3 3
Answer:
-3
Step-by-step explanation:
[tex]log_{\frac{1}{2} }8=-log_{2}8=-log_{2} (2^{3})=-3[/tex]
Answer:
-3
Step-by-step explanation:
i forgot how to do the log thingy but the guy on top is also correct
Stanley has a collection of seashells. He found 35% of his collection on Florida beaches. If Stanley has 49 seashells from Florida, how many seashells does he have in his collection all together?
A) 90
B) 120
C) 140
D) 160
Answer:
140 shells. So, C
Step-by-step explanation:
Let x equal the total number of shells in Stanley's collection. Then,
.35 x = 49
x = 49 / .35
x = 140
Ashley can ride her bicycle 15 miles in 2 hours. There are 60 minutes in 1 hour, and there are 1,760 yards in 1 mile. How many miles does Ashley travel in each minute?
(A) 29 1/3 yards
(B) 440 yards
(C) 14 2/3 yards
(D) 220 yards
Answer:
D the four one is corret
Step-by-step explanation:
D
Please help me
I need this ASAP
PLEASE HELP ME
Answer:
180 X 365 = 65700 litres
65700/1000 = 65.7 cubic metres
65.7 X 91.22 = 5993.154
5993.154 / 100 = 59.93154
59.93 + 28.20 = 88.13
yes Henry should have a water meter
The product of a number, x, and 18 is 113.4. Which equation and value of x represent this relationship?
Answer:
42
Step-by-step explanation:
Identify the GCF that was factored out of the polynomial -7t2 -42t -49
Answer:
-7
Step-by-step explanation:
You could take out a factor of -7.
-7t²/-7 = t²
-42t/-7 = 6t
-49/-7 = 7
So the GCF is -7.
You have a goal to save $250. You have saved $160? What percent of your goal have you reached?
2) divide 54kg in the ratio 1:5=
Answer:
9:45
Step-by-step explanation:
1:5= 6 parts
54/6=9
9*1=9
9*5=45
9:45
Answer:
9kg and 45kg
Step-by-step explanation:
In fraction from 1:5 is equivalent to 1/(1+5) = 1/6 and 5/(1+5) = 5/6.
So the answer is 54 * 1/6 and 54 * 5/6.
= 9 and 45.
PLZ PLZ someone help me
Answer:
y=4/5x
Step-by-step explanation:
Beth has had her car for a while and knows that it gets pretty good gas mileage On a recent business trip she used 16.25 gallons of gas and drove 471 miles. To the nearest tenth of a mile, what was her gas mileage? OA) 29 0 mpg OB) 30 0 mpg OC) 28.5 mpg OD) 270 mpg
Answer:
A) 29.0 mpg
you divide 471 by 16.25
What is 4.75 in standard form?
Answer:
0.00475
Step-by-step explanation:
I WILL GIVE YOU BRAINLY PLSS
What is the solution of x + 6 11
C. x –1
PLSS SHOW YOUR WORK PLSS
Answer:
9.34
Step-by-step explanation:
add 6 then mulitiply 11-1 xC=9.34
Im StUcK HeLp Me
-1 (4x + 2y)
Answer:
-4x - 2y
Step-by-step explanation:
Hope it works
Answer:
Step-by-step explanation:
−1(4x+2y)
=(−1)(4x+2y)
=(−1)(4x)+(−1)(2y)
=−4x−2y
Hope this helps u out
HELP Help Please
The volume V of a balloon varies directly with the cube of its radius R. If the volume is 113 cubic inches when the radius is 3 inches, find the formula for the volume.
Answer:
l × b is the correct answer for this question
I Music at the art museum is divided into six sections that each contain about the same number of tiles there are 2889 tails total in the music about how many tiles are in each section?
Answer:
481.5
Step-by-step explanation:
The music art museum is divided into 6 sections
Each section contains the same timert of tiles
There are 2889 tails total
Therefore the number of tiles in each section can be calculated as follows
= 2889/6
= 481.5
Hence there are 481.5 tiles in each section
Sales Tax
Selling Price Rate of Sales Tax Sales Tax
$50.00
4%
?
The sales tax is $
Answer:
2.00
Step-by-step explanation:
$50 x .04=$2.00
Please help me answer this
Answer: 7/8
10-2/12-4= 7/8
Step-by-step explanation:
Answer:
the answer might be number 3
What is the volume of the cuboid?
Answer:
180cm
Step-by-step explanation:
4cm*5cm*9cm=
Answer:
180
Step-by-step explanation:
Length=9cm
Height=5cm
Width=4cm
So,
9cm×5cm×4cm
=9cm×20cm
=180cm³
Find the distance between 3,4 and 3,9
Answer:
The answer is 5.
Step-by-step explanation:
The distance formula is ↷
[tex] d\sqrt{(x_2 - x_1)^{2}+ (y_2 - y_1)^{2} } [/tex]
All we got to to do right now is plug in!
[tex] d = \sqrt{(x_2 - x_1)^{2}+ (y_2 - y_1)^{2} } \\ d = \sqrt{(3 - 3)^{2} + (9 - 4)^{2} } \\ d = \sqrt{(0)^{2} + (5)^{2} } \\ d = \sqrt{0 + 25} \\ d = \sqrt{25} \\ d = \sqrt{5} [/tex]
Therefore, the distance between 3,4 and 3,9 is 5.
6th grade math help me plzzzz
Answer:
-0.9
Step-by-step explanation:
First we have to distribute. -1 times t is -1t and -1 times 8 is -8. Now, our equation will look like this: -1t - 8 = -7.1
Next, we have to carry our -8 to the other side of the euqation. So, we have to plus 8 on both sides. -7.1 plus 8 is 0.9. Now, our equation will look like this,
-1t = 0.9.
Lastly, we have to divide -1 from both sides. 0.9 divided by -1 is -0.9. So therefore, t = -0.9.
what is 3a + 2b - 6c
Answer:
Step-by-step explanation:
a = 3
b = 2
c = 12
3a+2b-6c
3(3)+2(2)-6(12)
-59?
x2=120
solve for the exact variable answer
Answer:
60 ?
Step-by-step explanation:
60×2 = 120. .
when you have a x right behind a number that means multiply
CAN SOMEONE PLZ HELP
Answer:
C. 7*7*7*7*7
Step-by-step explanation:
7^5 is multiplying 7 5 times
How many different 5-digit whole
numbers can be made using the
digits: 2,3,4,5, and 6 when each
digit can be used once only?
Answer:
120
Step-by-step explanation:
so
?????this 5 interrogative marks are our 5 digit number
for the first place you have 5 choices(2, 3, 4, 5, 6)
for the second:4
for the third:3
for the fourth:2
and for the fifth:1
you multiply this choices
5×4×3×2=120
Find the value of x in the isosceles triangle 40inches x 25 inches
Answer:
l
Step-by-step explanation:
Ruben bought a 20-pound bag of dog food for his Great Dane Tank Acer 7 days, all the dog
food was gone
How much dog food did Tank eat each day?
wrice your answer as a proper fraction or med number
Answer:
2/3
Step-by-step explanation: