3x-4 or = to 7
plz help
Answer:
3 + 4 = 7 which is true.
Step-by-step explanation:
Whenever you have an equation with a plain variable (that is, no exponent included), there is only one number that will work when substituted for x.
To solve it, you have to "undo" what is done to the variable. You also go in the reverse order of operations, so you do the addition/subtract first, then multiplication/division.
You also have to do the same to both sides, kind of like keeping a balance scale in balance.
In this case, we subtract 4 from both sides first:
3x + 4 -4 = 7 - 4
The + 4 - 4 cancel each other out, so you get:
3x = 3
3x means "3 times x" so you divide by 3 to undo it. I will use the / to indicate division:
3x / 3 = 3 /3
so 1x = 1.
Since 1x is "1 times x" it is the same as x by itself, so:
x=1
AND, if we substitute 1 back into the original equation (the asterisk stands for multiply):
3 * 1 + 4 = 7
3 * 1 is 3, so:
3 + 4 = 7 which is true.
1 is the only number that works.
Hope this helped.
In a bouquet of flowers, there are 7 daisies and 19 roses. Write the ration of daisies
to roses in three different ways.
A. 7 to 19, 7:19, 7/19
B.19 to 7, 19:7, 1977
C.7 to 19, 19:7, 1977
D.19 to 7, 7:19, 7/19
Answer:
A
Step-by-step explanation: : )
Please help me thanks please
Which triangles are congruent by SAS???
Answer:
Triangle VTU and ABC are congruent by SAS
Step-by-step explanation:
You can tell that these triangles are the same because the lines on the sides and angle are the same.
what reasons can be used to justify statement 4 in the proof above?
Answer:
its b
Step-by-step explanation:
i took da test
At Carly's Pancake House there are 39 dirty coffee mugs and 21 clean coffee mugs. What
percentage of the coffee mugs at the pancake house are dirty?
Answer:
65%
Step-by-step explanation:
What you need to do is add both the clean and the dirty mugs together to get a total amount of mugs (60) and then divide 39 by 60 because you are dividing the mugs that you want to find the percentage of by the total amount of mugs. The equation would look like this:
39/60=0.65
therefore, the answer is 65%
Which shows the numbers Nine-tenths, 0.3, 0.8, Five-tenths, and Two-tenths in order from least to greatest?
0.3, Five-tenths, Nine-tenths, Two-tenths, 0.8
Two-tenths, 0.3, Five-tenths, 0.8, Nine-tenths
Five-tenths, Two-tenths, 0.3, 0.8, Nine-tenths
Nine-tenths, 0.8, Five-tenths, 0.3, Two-tenths
Answer:
Step-by-step explanation:
Let's express all the given numbers as decimals:
nine tenths- 0.9
0.3
0.8
five tenths- 0.5
two tenths- 0.2
Ordering them from least to greatest:
two tenths, 0.3, five tenths, 0.8, nine tenths
Answer:
B is your answer
Step-by-step explanation:
Which is the graph of y – 3 = (-2/3)(x + 6)?
Answer:
The points are on (-1.5,0) and (0,-1)
Step-by-step explanation:
Hope this helps!
Brain-List?
True or false
It is common for
basic savings accounts
to have interest rates
up to 35%.
Answer:
TRUE
i think
Step-by-step explanation:
Solve the equation by completing the square.
x^2+18x=7
please show me how to also. :)
Answer:
x=-2[tex]\sqrt{x} 22 -9[/tex]
Step-by-step explanation:
Hey I need help ASAP!
Identify the function shown in this graph
Answer:
The answer is B.
y=-5x + 3
Step-by-step explanation:
Hope this helps
Jason claims he has finished reading 25% of his book. If his book has 200 pages, how many pages has he read?
Answer:
Jason has read 50 pages.
Step-by-step explanation:
25% of 200 = 50
Remember "of" means multiply so you multiply 25% to 200
25% x 200
Convert 25% into a decimal
0.25 x 200 = 50
So Jason has read 50 pages.
The late fee at the library is based on the number of days a book is late. Carter paid $1.08 for a book that way nine days late. Her sister Sydneys had a fever of $1.92 for a Late book how many days late was a book
Answer:
16 days
Step-by-step explanation:
108/9 is 12. The late fee is 12¢ per day. 16x12 is 192.
quick!! using y= 5x + 12 find the slope of a parallel line
Answer:
y=5x-10
Step-by-step explanation:
Bill is making accessories for the soccer team. He uses 611.66 inches of fabric on headbands for 31 players and 3 coaches. He also uses 273.11 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?
Answer:
26.8 inches of fabrics was used on headband and wristband for each player
Step-by-step explanation:
Headbands for 31 players and 3 couches = 611.66 inches of fabric
Total number of people = 31 players + 3 couches
= 31 + 3
= 34 people
Fabrics per person's headbands = Total inches of fabrics for headbands / total number of people
= 611.66 inches of fabric / 34 people
= 17.99 inches of fabrics per person
Wristband for 31 players = 273.11 inches of fabric
Fabric per person's wristband = total inches of fabrics for wristband / number of players
= 273.11 inches of fabric / 31
= 8.81 inches per person
How much fabric was used on a headband and wristband for each player?
= Fabrics per person's headbands + Fabric per person's wristband
= 17.99 inches + 8.81 inches
= 26.8 inches of fabrics was used on headband and wristband for each player
5th grade math. Correct answer will be marked brainliest.
Answer:
i think its 7
Step-by-step
if the jeans were $3.50 and she bought 2 just do 3.50x2 and you will get 7
I need help ASAP!!!!
Answer:
1/5
Step-by-step explanation:
......................
Answer:
10/50 - 1/5. The simplest form is 1/5
Hope This Helps!
What is h(p)=(p3+4p2-2) in distributive property
Solve each equation.
a. 6x + 4 = 34
Step-by-step explanation:
ans;
6x=34-4
6x=30
x=30/6
:x=5#
please help me out!!! i have to pass this test
Answer: 126!
Step-by-step explanation: I subtracted 180-54, because a triangle should always equal 180.
Factor with the distributive property (no variables)
90+27=
Your answer is 9(10 + 3)
Tell me if you need an explanation
I need the answers to these questions ASAP, thank you in advance!
Answer:
1. sliver's gym
2. sliver's gym
3. fitness planet
4. fitness:345 to sliver: 185
Step-by-step explanation:
1. with zero months
fitness planet cost is C = 22(0)+15= 15
sliver's gym cost is C = 15(0)+5= 5
2. sliver's gym because the rate of change is slower than fitness, resulting in you paying less for monthly memberships
3. Fitness planet because the rate of change is higher meaning that you will pay more for the monthly memberships.
4. Fitness planet C = 22(12)+15 = 345
Sliver's gym C = 15(12)+15 = 185
Sylvia and Patrick plotted the information they gathered on the weight of cars and the mileage they get. Then they each drew a line on the graph that they felt best fit the data. Sylvia’s line is a line of best fit because her line is close to most of the data points . Patrick’s line is not a line of best fit as his line does not fit the data points exactly .
Answer:
Sylvia’s line is a line of best fit because her line is close to most of the data points. Patrick’s line is not a line of best fit as his line is not close enough to all the data points.
In a recent survey 5/8 of the Siamese cat said that they didn't mind having a lap up water from a bowl but another 3/16 admitted they would have preferred to use a straw instead of 39 of the Siamese cats gave one of these two answers how many were surveyed in total make sure your answer is fully reduced
Answer:
48 Siamese cats were surveyed
Step-by-step explanation:
Let x represent the total number of surveyed Siamese cats.
Since 5/8 of the Siamese cat said that they didn't mind having a lap up water from a bowl , hence:
Number of cats who lapped = (5/8)x
Also, 3/16 admitted they would have preferred to use a straw:
Number of cats who used straw = (3/16)x
Taking into consideration that 39 of the Siamese cats gave one of those two answers:
(5/8)x + (3/16)x = 39
(13 / 16)x = 39
x = 39 * 16 / 13
x = 48
48 Siamese cats were surveyed
Use the number line to find
0+(
8
19
14
0
19
8
OI-2
21
8
Answer:
put it right in between the 0 and 0.5
Step-by-step explanation:
Answer:
- 19/8 hope you got it right
25 POINTS and brainliest
A function is shown. To the nearest whole number, what is the average rate of change of the function over the interval from x = 0 to x = 15? f(x) = 50,900(1.03)
Answer:
X=13
Step-by-step explanation:
Answer:
1893 or B
Step-by-step explanation:
To find the rate of change we divide the output value by the input values in this case
f(x) = 50,900(1.03)^0= 50900
f(x) = 50,900(1.03)^15= 79300
79300-50900=28400
So if we find the Rate of change by dividing the output value by the input value so we have 28400/15=1893 that is how you get your answer
Rewrite y= 16X+64 +3 to make it easy to graph using a translation. Describe the graph.
Answer:
C
Step-by-step explanation:
The sum of 6 consecutive even numbers is 126
.
What is the fourth number in this sequence?
||EXTRA POINTS + BRAINLET||
Find the slope of 6x – 3y = 5
Answer:
slope is 2
Step-by-step explanation:
simplify this equation so that you can get to "y ="
your equation is: 6x - 3y = 5
start by subtracting 6x from both sides: -3y = -6x - 5
then divide both sides by -3 to isolate y: y = 2x - 5/3
so now we can clearly see that the slope is 2, since that is what is right next to x
I don’t know the answer! Please help
Answer:
3x=4x-24, x=24, RST=72
I will be doing more 100 point free questions