Answer:
19,17,15,13
Step-by-step explanation:
25-6=19
25-8=17
25-10=15
25-12=13
Use the drop-down menus to complete each question so the statement about its solution is true.
Step-by-step explanation:
• no solution:
3x+9+4x+x = 8x + 9
• one solution:
3x+9+4x+x = 7x + 11
• infinitely many solutions:
3x+9+4x+x = 8x + 11
You are remodeling your kitchen. You've contacted two tiling companies who
gladly told you how long it took their workers to tile a floor of a similar size.
Jim completed half the floor in 9 hours. Pete completed the other half of the
floor in 5 hours. If Pete can lay 35 more tiles per hour than Jim, what equation
would you use to find the rate that Jim can lay tiles? Let x represent Jim's
rate.
A. 5x - 9(x-36)
B. 5x - 91% +35)
C. 9x - 5(x-36)
D. 9x - 5(x +35)
Answer:
The correct answer would be D
9x=5(x=35)
Step-by-step explanation:
If this doesn't help I can fix it. I'm sorry in advance if it is incorrect.
please help me with this!
how many questions out of 42 do I need to get right to score 75?
Answer:
31 questions, but it's impossible to score 75%.
Step-by-step explanation:
It's impossible to get exactly a score of 75% out of 42 questions. However, you can get the next closest percentage, which is rounded up to 74% with 31 questions right out of 75.
This is because 31 / 42 = 0.738... You can round 0.738 to 0.74. Then multiply 0.74 by 100, which gives you 74. This means the closest score you can get to 75 is 74% with 31 questions.
You can also score 76% with 32 questions right out of 42 questions. This is because 32 / 42 = 0.761... You can round 0.761 to 0.76. Then multiply 0.76 by 100, which gives you 76.
A rectangle has an area of 500 square meters. If it's length is 4x-3 meters and it's width is 2x+6 meters, what is the actual width of the rectangle?
Answer:
25 meters .
Step-by-step explanation:
The actual width of the rectangle is 24.5 meters.
What is area of rectangle?The area of rectangle equals the base(width) times the height.
A = w × h
Given
Area of rectangle = 500 square meters.
Length of rectangle = 4x - 3 meters
Width of rectangle = 2x + 6 meters
Area of rectangle = length × width
500 = (4x - 3) (2x + 6)
⇒ 500 = [tex]8x^{2}+24x-6x-18[/tex]
⇒ 500 = [tex]8x^{2}+18x-18[/tex]
⇒ 500 = [tex]2(4x^{2}+9x-9)[/tex]
⇒ [tex]\frac{500}{2}=4x^{2}+9x-9[/tex]
⇒ [tex]250=4x^{2}+9x-9[/tex]
⇒ [tex]4x^{2}+9x-9-250=0[/tex]
⇒ [tex]4x^{2}+9x-259=0[/tex]
⇒ 4x(x + 7) -37(x + 7) = 0
⇒ (x + 7) (4x - 37) = 0
⇒ x = -7, x = [tex]\frac{37}{4}[/tex]
-7 is not satisfied because it is a negative number.
By substituting x = [tex]\frac{37}{4}[/tex] in width of rectangle
Actual width of rectangle = 2x + 6
= 2( [tex]\frac{37}{4}[/tex]) + 6
= [tex]\frac{37}{2}[/tex] + 6
= [tex]\frac{37+12}{2}[/tex]
= [tex]\frac{49}{2}[/tex]
= 24.5 meters
Hence, the actual width of the rectangle is 24.5 meters.
Learn more about area of rectangle here
https://brainly.com/question/12019874
#SPJ2
There were 400 students in attendance. 51% are boys. How many are boys (show your work)
Answer:
204 out of 400 students are boys; 204
Step-by-step explanation:
x/400 = 51/100
100x = 51 x 400
100x = 20400
100x/100 = 20400/100
x = 204
DEKU
Answer:
201-boys 199-girls
i dont think if my answer are right..
Step-by-step explanation:
(b) Evaluate (6.3 x 10^6)+ (9 x 10^2).
How many core are there in 20 millon
Answer:
2 crore are there in 20 million.Step-by-step explanation:
❣️(◍Jess bregoli◍)❣️#keep learning!!
Now,
10 millions = 1 crore
20 millions = 1/10*20
= 2 crore
I hope it's help you...
Mark me as brainliest...
If f(x)=3x+10x and g(x)=5x-3, find (f+g)(x)
Answer:
8x+7
Step-by-step explanation:
(f+g)(x)=f(x)+g(x)=3x+10+5x-3=8x+7
Find the scale factor from Triangle ABC to Triangle DEF.
Answer:
The ratio of any two corresponding lengths in two similar geometric figures.
Step-by-step explanation:
You can see immediately that the length of each of the sides in triangle DEF is equal to the length of the corresponding side in ABC multiplied by “a”.
If you divide the length of DE by the length of AB:
a^2/a =a.
You get a scale factor of “a”
Which of the following terms best describes the graph of the exponential
function given below?
f(x) = 4• 5x
A. Increasing
B. Linear
C. Constant
D. Decreasing
Answer:
I think the answer could be linear I think.
Please Help me Please
Answer:
Step-by-step explanation:
80/100
=4/5
-800/100
=-8/1
=-8
80/-10
8/-1
-8
-80/-10
8/1
8
-80/-100
4/5
so second and third option are equivalent to -8.
Solve the following 3 × 3 system. Enter the coordinates of the solution below.
2x – 3y – 2z = 4
x + 3y + 2z = –7
–4x – 4y – 2z = 10
9514 1404 393
Answer:
(x, y, z) = (-1, 0, -3)
Step-by-step explanation:
We notice that the coefficients of z are such that elimination of the z term from the equations is made easy.
Adding equations 1 and 2:
(2x -3y -2z) +(x +3y +2z) = (4) +(-7)
3x = -3
x = -1
Adding equations 2 and 3:
(x +3y +2z) +(-4x -4y -2z) = (-7) +(10)
-3x -y = 3
Substituting for x, we get ...
(-3)(-1) -y = 3
0 = y . . . . . . . . . . . add y-3 to both sides
Then z can be found from any equation. Substituting for x and y in the second equation gives ...
-1 +2z = -7
2z = -6 . . . . . add 1
z = -3 . . . . . .divide by 2
The solution is (x, y, z) = (-1, 0, -3).
please show your work
Answer:
[tex]x = 56[/tex]
Step-by-step explanation:
Use tangent function.
[tex] \tan(x) = \frac{18}{12} [/tex]
Take the arctan
[tex] \tan {}^{ - 1} ( \frac{18}{12} ) [/tex]
which is about
0.98279372.
Convert from radians to degrees in you will get
56 degrees.
Answer:
Step-by-step explanation:
You can solve this by using trigonometry and the formula SOH CAH TOA. You're looking for an angle that is adjacent (next to) 12, and opposite 18. Therefore, you will needed to use TOA, which stands for tangent = opposite/adjacent.
With substitution, this gives you tangent = 18/12. 18/12 is equal to 1.5. Because we are looking for an angle we need to use the tan^-1 (tan to the power of -1) button on our calculator. Tan(1.5)^-1 equals 56.31 to 2dp.
Hope this helps!
For items 10 and 11, write each relation as a set of ordered pairs.
Answer:
-15,3 2,-11 -3,-7 12,4
Name the figure. Write the area formula. Fill in the area formula. PLEASE HELP ME ON THIS AND MY OTHER QUESTION!!!!
Answer:
name=circle area= 2 x pi x 6square
Step-by-step explanation:
Answer:
Step-by-step explanation:
Name of a figure=circle
radius=diameter/2
=12/2
=6
area=πr^2
=3.14*(6)^2
=3.14*36
=113.04 in^2
Math help please thanks due soon
Problem 11
Answer: Angle C and angle F
Explanation: Angle C and the 80 degree angle are vertical angles. Vertical angles are always congruent. Angle F is equal to angle C because they are alternate interior angles.
============================================
Problem 12
Answer: 100 degrees
Explanation: Solve the equation E+F = 180, where F = 80 found earlier above. You should get E = 100.
============================================
Problem 13
Answer: 80 degrees
Explanation: This was mentioned earlier in problem 11.
============================================
Problem 14
Answers: complement = 50, supplement = 140
Explanation: Complementary angles always add to 90. Supplementary angles always add to 180. An example of supplementary angles are angles E and F forming a straight line angle.
Mrs. Kaplan"s son, Carter, can crawl 125 feet in 1.5 minutes. He can walk 384 feet in 4 minutes. Is he faster on all fours or on his feet?
Answer:
Crawling
Step-by-step explanation:
Find the height of a cuboid if it's length is 15cm, it's breath is 12cm and it's total surface are is 900cm
Answer: [tex]h=8.33\ cm[/tex]
Step-by-step explanation:
Given
The length of a cuboid is [tex]l=15\ cm[/tex]
breadth is [tex]b=12\ cm[/tex]
Total surface area is [tex]S.A.=900\ cm^2[/tex]
Surface area is given by [tex]2(lb+hl+bh)[/tex]
Insert the values
[tex]\Rightarrow 900=2(15\times 12+15h+12h)\\\Rightarrow 450=225+27h\\\Rightarrow 225=27h\\\Rightarrow h=8.33\ cm[/tex]
Find the slope of the line whose equation is y = 2x – 1
General equation for slope-intercept form
y = mx+c
comparing the given eqn with this ,
m= slope = 2
HELP!!!!! NO LINKS OR FAKE ANSWER OR I WILL REPORT YOU Thanks! The image is above¡
Answer:
Top left Equation: [tex]\frac{2}{3} + (- 2 \frac{1}{3} ) = - 1 \frac{2}{3}[/tex]
Step-by-step explanation:
You start at 2/3, or the left side.
Since the line is directing left, you are subtracting, or adding a negative.
If you see, you are moving 7 - 1/3s to the left
7 x 1/3 = 7 / 3
7 / 3 = 2 1/3
And 2/3 + (-2 1/3) = -1 2/3
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Help
Will
Give
Brainlist
Answer:
1st answer
Step-by-step explanation:
If sunscreen holds 12 fluid ounces of sunscreen A regular bottle Holds 75%less in it how many ounces does the regular bottle of sunscreen hold?
Answer:
3 ounces
Step-by-step explanation:
there are two ways that the answer to this question can be determined
Method 1
If the regular bottle Holds 75% less in it, it means that the regular bottle holds 25%(100 - 75)
Ounces the regular bottle holds = 25% x 12
0.25 x 12 = 3
Method 2
Determine the value of 75%
75% x 12
0.75 x 12 = 9
Since the regular bottle Holds 75% less in it, subtract the value of 75% from 12 ounces
12 - 9 = 3
33 degrees, 87 degrees, x=?
Answer:
60°
Step-by-step explanation:
180 - 33 - 187 = 60
Answer:
[tex]x=60\\y=120[/tex]
Step-by-step explanation:
A triangle is always 180 degrees...
Form an equation to solve:
[tex]x+33+87=180[/tex]
[tex]x+120=180[/tex]
[tex]x=180-120[/tex]
[tex]x=60[/tex]
To find y:
(Angles on straight line = 180)
[tex]y=180-x[/tex]
(replace x with 60)
[tex]y=180-60[/tex]
[tex]y=120[/tex]
hope this help :)
Solve for x. 4x-4< 8
AND 9x +5 > 23
is it a, b,c or d ?
Answer:
[tex] A)\displaystyle2 < x < 3[/tex]
Step-by-step explanation:
A compound inequality is an inequality that combines two simple inequalities
we are given that
[tex] \displaystyle 4x - 4 < 8 \ \: \text{and} \: \: 9x + 5 > 23[/tex]
solving x for the first equation:
[tex] \displaystyle 4x - 4 < 8[/tex]
add 4 to both sides:
[tex] \displaystyle 4x < 12[/tex]
divide both sides by 4 and since we are dividing both sides by a positive number the inequality won't swap
[tex] \displaystyle x < 3[/tex]
solving x for the second equation:
[tex] \displaystyle 9x + 5 > 23[/tex]
cancel 5 from both sides:
[tex] \displaystyle 9x > 18[/tex]
divide both sides by 9 and since we are dividing both sides by a positive number:
[tex] \displaystyle x > 2[/tex]
therefore by combining the equations we obtain:
[tex] \displaystyle\boxed{2 < x < 3}[/tex]
hence,
our answer is A)
JGR-MST. Which statement is not always true? someone pls helpp
Answer:
It is D, I think it’s because the letters need to be around in the same order
The angle corresponding to each other of different triangle are equal.
What are similar triangle ?"Similar triangles are triangles that have the same shape, but their sizes may vary. All equilateral triangles, squares of any side lengths are examples of similar objects. In other words, if two triangles are similar, then their corresponding angles are congruent and corresponding sides are in equal proportion".
Here given,
[tex]\triangle JGR[/tex] is similar to triangle [tex]\triangle MST[/tex]
So, from the definition of similar triangle ,
angle J ≅ angle M
angle G ≅ angle S
angle R ≅ angle T
Hence, option D is correct.
To know more similar triangle here
https://brainly.com/question/25882965
#SPJ2
Can someone please help with this asap its worth a lot of points. (: !!!
Answer:
8...the value of d variable =45 degree
corresponding angles are equal(reason)
9.
Answer:
if one angle is 35 degree... the other angle which one is opposite must be 35 degree
Step-by-step explanation:
now we can collect two angle and try to complete 180 degree. 45+35+ other angle equal to 180 degree and the other angle is 100 degree and we have Z rules so x=100 C°
Which student's table is correct?
O Emily
O Will
O Sarah
O Maria
How many real solutions are there for the equation
3
2
0
1
Answer:
2
Step-by-step explanation:
[tex]12x {}^{2} + 4x - 3x - 1 = 0 [/tex]
[tex]4x \times (3x + 1) - (3x + 1) = 0[/tex]
[tex](3x + 1) \times (4x - 1) = 0[/tex]
[tex]3x + 1 = 0 \\ 4x - 1 = 0[/tex]
[tex]x = - \frac{1}{3} \\ x = \frac{1}{4} [/tex]
I hope this helps :)
Work out the area of a circle whose diameter is equal to 14 cm.
Give your answer correct to 2 decimal places.
cm?
help
Given:
The diameter of the circle = 14 cm
To find:
The area of the circle.
Solution:
We have,
Diameter of the circle = 14 cm
We know that the radius of the circle is half of its diameter. So,
[tex]r=\dfrac{14}{2}[/tex]
[tex]r=7\text{ cm}[/tex]
The area of a circle is:
[tex]A=\pi r^2[/tex]
Substituting [tex]\pi=\dfrac{22}{7}, r=7[/tex] in the above formula, we get
[tex]A=\dfrac{22}{7}\times (7)^2[/tex]
[tex]A=22\times 7[/tex]
[tex]A=154[/tex]
Therefore, the area of the circle is 154 square cm.