im pretty sure its 74
3x + y= 8
X-3y = 11 X 3
Simultaneous equation
One number is seven more than six times another number. If the sum of the numbers is 21, find the numbers
Answer:the two numbers are 2 and 19
Step-by-step explanation:
Let one of the numbers be x
and the second be 7+ 6x
so that the sum of the two numbers which totals 21 be expressed as
x + (7+ 6x) = 21
x+ 7+6x= 21
7 + 7x = 21
7x= 14
x= 14/7 = 2
one of the numbers = 2
the other number given as
7+ 6x = 7+ 6 x 2= 7+12= 19
The numbers are 2 and 19 .
The numbers as described in the question are; 2 and 19
Solving word problemsFrom the given problem statements;
The first number = y
The second number = x
Hence, y = (7 + 6x)
Their sum is therefore;
x + 7 = 6x = 217x = 14x = 2Hence, the second number is; 7 + 6x = 7 + 6(2);
y = 19Read more on word problems;
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A librarian was packing some books.
She discarded 22 books with torn pages.
She then packed the rest equally into 9 shelves.
There were 11 books on each shelf.
Answer:
99 books in total...
Step-by-step explanation:
Determine whether the line through (−4, 7) and (−2, −1) intersects the line through (−3, −3) and (−1, −7).
Answer:
no it does not
Step-by-step explanation:
Alexander read 12 books in 3 months what was her rate of reading and months per book
Answer: 4 books every month
4:1
The width of the rectangle in the image is 3.4 ft.
What is the actual length of just the rectangle?
Hint: Subtract radius of the circle (half of 3.4) from the length (7.2).
Answer = _____ ft.
Answer: 5.5.
i hope that this helped you
evan walk 14 miles in 7 hours what was his walking rate in hours per mile
Please report this. I answered wrong the first time and I am not sure how to help sorry. I would just delete my answer but I can't. I am so so sorry.
A line of best fit predicts that when x equals 29, y will equal 32.75, but y actually equals 32. What is the residual in this case
Answer:
The residual is 0.75
Step-by-step explanation:
Recall that the residual is the VERTICAL distance between the y-value of the data point and the y-value of the predicted line. This distance can be calculated using the absolute value of the difference between these y-values.
Therefore, in our case the residual is: |32 - 32.75| = |-0.75| = 0.75
pleaseee help find for b
Answer:
[tex] \frac{8}{7} = \frac{b}{b - 10} \\ 7b = 8b - 80 \\ - b = - 80 \\ b = 80[/tex]
1. If a height of each of the bars in a bar graph get taller as you go from the far left to the far right, the data are:
A. skewed left
B .symmetrical
c skewed right
D. No answer text provided.
2. If the height of each of the bars in a bar graph get shorter as you go from the far left to the far right, the data are:
A. skewed left
B. symmetrical
C. skewed right
D. No answer text provide
3. If the height of the each of the bars in a bar graph as you go from the far left to the right gets taller until you reach the middle and then gets shorter as you continue to the far right, the data are:
Group of answer choices
A.skewed left
B. symmetrical
C. skewed right
D. No answer text provided.
Answer:
1. Skewed to left (negative)
2. Right skewed (positive)
3. Symmetric
Step-by-step explanation:
Sixteen times a number j is no less than -2
what is one quality of rotation
Answer:
Quality rotation is the act of a joint moving through a range of motion in a way that is efficient, controlled and repeatable.
Answer:
The degree, for example, if you move a little It will make it 90 degree or other.Step-by-step explanation:
tom wants to but a stereo that cost $540.00. he has saved 1/3 of the cost. how much gas tom saved?
pleaseeee help meee i dont understand
[8-(-12)]÷(2x-2)-(-8)
Answer:
3
Step-by-step explanation:
que numero dividido entre 22 da 16
Brandon bought Snacks for his teams practice he bought a bag popcorn for 211 and a six pack of juice bottles of total cost before tax was 1141 right and solve an equation which can be used to determine X how much
Answer: 2.11X=11.41
X=9.3
or
211x=1141
930
Step-by-step explanation:
Answer:
Equation: 6x+2.11=11.41
Answer: x = 1.55
Step-by-step explanation:
If an article costs a store $17.45 and if it sells the article for $22.95, what percentage markup is it using?L
Camila drew a triangle with a side that is 24
inches long and a side that is 18 inches long.
Which of the following could be the length of the
third side of the triangle that Camila drew? Select
THREE that apply.
42 inches
40 inches
18 inches
7 inches
6 inches
5 inches
Answer:
Step-by-step explanation:
It’s going to be 42 inches and 40 inches because we are simplifying
The solution is, 40 inches ,or, 7 inches ,or, 18 inches, could be the length of the third side of the triangle that Camila drew.
What is triangle?A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.
Here, we have,
given that,
Camila drew a triangle with a side that is 24 inches long
and a side that is 18 inches long.
we know, that,
sum of length of two sides > third side,
so, the possible lengths are,
40 inches , 7 inches , 18 inches
Hence, The solution is, 40 inches ,or, 7 inches ,or, 18 inches, could be the length of the third side of the triangle that Camila drew.
To learn more on triangle click:
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A journalism teacher wants to determine
whether his students would prefer to attend a
national writing convention or tour of a local
newspaper press. The journalism teacher has
a total of 120 students in 4 different classes.
What would be a representative sample in this
situation?
Answer:
Randomly choose 40 kids to survey.
Step-by-step explanation:
This is for every one who needs the answer to this question but cant get it so here you go!
Identify the rate of change of the function.
67Answer:67
Step-by-step explanation:
How many solutions does
Y = 2x + 10
3y - 6x = 30
Show all work
A no solution
B one solution
C infinity solutions
Answer:
A no solution
Step-by-step explanation:
y = 2x + 10
3y - 6x = 30
3(2x+10) -6x =30
6x +30 -6x =30
6x -6x = 30-30
0=0
Use order of operations to simplify 6 squared - (5 -4) + 2( 8 - 2 squared) divided by 8
HELP PLS ASAP 50 POINTS HELP ILL MARK BRAINLIEST
Answer:
1/2jdjdjjdjdjdhdhdhdhdhhdhdhdhdhd
17-(8 to the power of 3 - 45) times 7 times 2 - 1324
Answer:
-7845
Step-by-step explanation:
17-(8 to the power of 3-45) times 7 times 2 -1324=-7845
Which type of climate change is most likely to lead to mass extinction in which vast numbers of species of all kinds die off? A.) A gradual change in precipitation
B.) A gradual warming
C.) A gradual cooling
D.) A very rapid change
A very rapid climate change is most likely to lead to mass extinction in which vast numbers of species of all kinds die off.
What is ECOLOGICAL SUCCESSION?An ecosystem can change its structure and composition over a particular period. This term is called ECOLOGICAL SUCCESSION.
Succession refers to the gradual change that occurs in a community over time. Succession is of two types; primary and secondary succession.
Climate change and succession are causes of change in the ocean ecosystem. Hence, the succession represents the gradual change that occurs in the structural composition of the ocean ecosystem over time.
The risk of future extinction through rapid global warming is primarily expected to occur by the interaction between the climates to which organisms are adapted in their current range and the future distribution of those climates.
Thus the correct option is D.
A very rapid climate change is most likely to lead to mass extinction in which vast numbers of species of all kinds die off.
Learn more about climate change here;
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Each of the 6 cats in a pet store was weighed. Here are their weights (in pounds):
7, 14, 6, 11, 13, 5
Find the median and mean weights of these cats.
If necessary, round your answers to the nearest tenth.
Answer:
the median is 9,the mean is 9.3
Step-by-step explanation:
What is the answer to this question?
Answer:
48x - 40y +24
Step-by-step explanation:
Answer:
D (48x - 40y +24)
Step-by-step explanation:
First, you need to distribute the 8 throughout the whole equation, so 8×6x=48x, 8×-5y=-40y, and 8×3=24. Right away, you can see that the answer is D.
12. A number has an absolute value
of 8. List all of the possible numbers
that have an absolute value of 8
Explain how you know. (Module 3)
Answer:
8 and -8
Step-by-step explanation:
cause thats how math work
If f(0) = 2 sin 0 - cos 20, find f(pi/6)
Answer: 1/2
Step-by-step explanation:
f(Ф) = 2sin(Ф) - cos(2Ф)
f(pi/6) = 2sin(pi/6) - cos(pi/3)
Use the pi circle or a calculator
f(pi/6) = 2(1/2) - 1/2 = 1/2