Answer:
No solution
Step-by-step explanation:
(7)(3)+(7)(−x)=(−7)(x)+(−7)(3)+-4
21+−7x=−7x+−21+−4
−7x+21=(−7x)+(−21+−4)
−7x+21=−7x+−25
−7x+21=−7x−25
−7x+21+7x=−7x−25+7x
21=−25
21−21=−25−21
0=−46
If 56% of the 125 fifth-grade students have a skateboard, how many of the students have a skateboard?
Answer:
70
Step-by-step explanation:
70 students have a skateboard.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Total students are 125.
And to find the percentage of 56, we have to take the fraction.
56% of 125 students:
56 x 125 /100
= 7000/100
= 70
Therefore, 70 students have a skateboard.
To learn more about the percentage;
https://brainly.com/question/24159063
#SPJ5
What value correctly fills in the blank so that the expressions are equivalent?
32 + 72 = blank x (4 + 9)
Answer:
8
Step-by-step explanation:
8*4 is 32 8*9 is 72
so, it is 8
since it is distributive property 8(4+9)
Answer:
8
Step-by-step explanation:
1) simplify the equation
32+72=104
104=4x+9x (distibute the "x")
104=13x
x=8
hence the "blank" is 8
I NEED HELP ASAP PLEASEEEE!!!!!
Answer:
Step-by-step explanation:
Use Pythagorean theorem.
Hypotenuse² = base² + altitude²
5) x² = 12² + 6²
= 144 + 36
x² = 180
x = √180
x = 13.42 ft
6) 25² = x² + 19²
625 = x² + 361
625 - 361 = x²
x² = 264
x = √264
x = 16.25 m
7) x² = 7² + 576
= 49 + 576
= 625
x = √625
x = 25 in
8) 2.5² = 2²+ x²
6.25 = 4 + x²
6.25 - 4 = x²
x² = 2.25
x = √2.25
x = 1.5 yd
Solve the inequality and graph the solution, please put it on a number line if you can.
200 - 4.5x ≤ 20
Answer:
x is greater than or equal to 40
Step-by-step explanation:
Stacey worked in her garden 1 1/2 hours. Josh worked in his garden 2/3 as long as Stacey, Vicki worked in her garden 1 3/4 as long as Stacey.
Camille's kitchen has an area of 80 square feet. The kitchen is 8 times as many square feet as Camille's pantry. If the pantry is 2 feet wide, what is the length of the pantry? First find the area of the pantry. Solve on paper and check you answer on Zearn. The area of the pantry is square ft.
Answer:
Length of the pantry = 5 feet
Step-by-step explanation:
Camille's kitchen has an area of 80 square feet. The kitchen is 8 times as many square feet as Camille's pantry.
Step 1
Area of Camille's kitchen = 8(Area of Camille's pantry)
Area of Camilla kitchen = 80 square feet
80 square feet = 8(Area of Camille's pantry)
Area of Camille's pantry = 80 square feet/8
Therefore:
Area of Camille's pantry = 10 square feet
Step 2
If the pantry is 2 feet wide, what is the length of the pantry?
The shape of the pantry is rectangular hence:
The area of the pantry = Length × Width
Area of the pantry = 10 square feet
Width = 2 feet
Length = Area of the pantry/Width
Length = 10 square feet/2 feet
Length = 5 feet
What is the volume of the triangular prism
Hight 10in
Base 14 in
Length 6
Answer:
[tex]V=336\ in^3[/tex]
Step-by-step explanation:
Triangular Prism
Given a triangular prism of base area A and height H, its volume is obtained with the formula:
V = AH
The area of the base is calculated as follows:
[tex]A = \frac{WL}{2}[/tex]
Where W is the width and L is the length. Both dimensions must be perpendicular.
The triangle of the base has a hypotenuse equal to 10 in and the width is 6 in, the length is calculated by:
[tex]L=\sqrt{10^2-6^2}[/tex]
[tex]L=\sqrt{100-36}=\sqrt{64}[/tex]
L = 8 in
The area is:
[tex]A = \frac{6*8}{2}[/tex]
[tex]A = 24\ in^2[/tex]
Finally, the volume is:
[tex]V = 24\ in^2*14\ in[/tex]
[tex]\boxed{V=336\ in^3}[/tex]
HELP ME I BEG U a solution to the equation 4x-3y=12 must also be a solution to which of the following equation?
(1) 4x+3y= -12
(2) 12x-9y=36
(3) 2x-3y=6
(4) 8x-6y=12
Answer:
(2) is the correct answer
Step-by-step explanation:
if you multiply the given equation by 3 you get answer (2):
3(4x - 3y) = 3(12)
12x - 9y = 36
Answer:
(2) 12x-9y=36
Step-by-step explanation:
4x-3y=12 (×3)
12x-9y=36
Simplify the radical
Answer:
[tex] \sqrt{108} \sqrt{36 \times 3} \sqrt{36} \sqrt{3} \: \: 6 \sqrt{3} \: \: \: \sqrt{108} = 10.392304845413264[/tex]
Helpppp plsssssssss
Answer:
x intercept is (3,0)
y intercept is (0,-10)
Find the sum of 5x2 - 3x + 2 and 3x2 - 4x - 1. Show all your work!!
Answer:
5 x ^2 − 3 x + 2 = 3 x − 4 x − 1 = − x − 1
Can't explain, cause it will be more confusing.
please help i’ll give brainliest
Answer:
about 463 minutes or 7.7 hours
Step-by-step explanation:
area=length*width
4.75ft*3.25ft=15.4375ft^2
Now multiply 15.4375*30 to get 463.125 minutes
HELP!! A,b,or C need it asap
Answer:
the answer is b
Step-by-step explanation:
Answer this question on the picture
Answer:
When one variable influences a change in another
Step-by-step explanation:
Causation means that one event causes another event to occur.
Ewan has 48 white tiles and 16 blue tiles. The cost of each white tile is £2.
The cost of each blue tile is £4.
Work out the ratio of total cost of white tiles to the total cost of the blue tiles.
Determine the missing length of the right triangle below using the Pythagorean Theorem (a²+b²=c²). Round to the nearest whole number.
Answer:
11
Step-by-step explanation:
[tex]c=\sqrt{a^{2} + b^{2} } \\14 = \sqrt{9^{2}+ b^{2} } \\14 = \sqrt{81 + b^{2} } \\14^{2} = 81+b^{2} \\196 = 81 + b^{2} \\81 + b^{2} = 196\\b^{2} = 196-81\\b^{2} = 115\\b = \sqrt{115} \\b = 10.72\\b = 11[/tex]
A physical therapy student is adding up the cost of books for the first three semesters of school. The first semester he spent $400, the second semester he spent $515, and the third semester he spent $620. What on average has he spent on books per year?
Answer:
Im not sure but i think 1535
Step-by-step explanation:
a) Find the lowest common multiple (LCM) of 36 and 48
Answer:
144
Step-by-step explanation:
I did the sum out :) :)
TRUE OR FALSE:
2y + 3 + y + 2 + 4 = 3y + 9
Daniel rollerbladed 3 miles in 12 minutes. At this rate, how many miles will he rollerblade in 1 hour? Show your work.
Answer:
Daniel is rollerblading at 15 miles per hour
Daniel can go 3 miles in 12 minutes so we do 12÷3 to find out how many minutes it takes to go 1 mile which is 4 now we do 60÷4 to get 15
Alternatively we could do 60÷12 to get 5 then do 3×5 to get 15
Step-by-step explanation:
Suppose that a sequence is defined as follows
a1=-3 an=2an-1+10 for n is greater than or equal to 2
Answer:
idek im doing this for points for my test
Step-by-step explanation:
Plz help meeeeeeeee You must make a constructive response and this is 8th Grade Math
Answer:
I'm in 10th grade so I'll see what I can do and will answer to the best of my ability.
Step-by-step explanation:
What Julie did wrong was, she did simplify she just did it wrong. She used 4*8 which does equal 32 but 8 can't be simplified anymore than that. If she would of used 2*16 then her answer would be right.
Hope this helps!
Answer:
[tex]5 \sqrt{18} - \sqrt{32} \\ = 5 \sqrt{9 \times 2} - \sqrt{4 \times 4 \times 2} \\ = 5 \times 3 \times \sqrt{2} - 2 \times 2 \times \sqrt{2} \\ = 15 \sqrt{2} - 4 \sqrt{2} \\ = \boxed{11 \sqrt{2} }[/tex]
11√2 is the right answer.a rectangle has a length 3 meters more than three times the width. the area of the rectangle is less than 90 meters squared. write an expression that represents all possible widths (use the variable x) of the rectangle. write your answer as an inequality, a < x < b.
Answer: -6<x<5
Step-by-step explanation:
Given
Length is 3 m more than three times the width
Suppose width is x
So, the length is 3x+3
The area of a rectangle is [tex]length\times width[/tex]
Area= [tex](3x+3)x<90[/tex]
[tex]\Rightarrow 3x^2+3x-90<0\\\Rightarrow x^2+x-30<0\\\Rightarrow x^2+6x-5x-30<0\\\Rightarrow (x+6)(x-5)<0\\\Rightarrow -6<x<5[/tex]
Please help! This is due in two minutes :(
Is y=x^2 a function
Answer:
No
Step-by-step explanation:
y=x^2 is a sideways parabola and therefore not a function
Answer:
yeah
Step-by-step explanation:
Like based on existence theorem, for a rational number x there is a rational numner y, x^2=y
Algebra is a hard subject for me can I have help please
Answer:
What he/she said
the amount of ppl who do this lol.
The elevator can hold at most 20 people. Which inequality shows the capacity of the elevator.
A
x ≤ 20
B
x > 20
C
x < 20
D
x ≥ 20
Answer:
A x ≤ 20
Step-by-step explanation:
Mrs. Torres is mailing a package that weighs 12.5 pounds. The post office charges by the
ounce to mail a package. How much does the package weigh in ounces?
Answer:200 ounces
Step-by-step explanation: multiply 12.5 by 16
HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Jessica runs between 3 and 7 miles per day. It takes Jessica 12 minutes to run one mile. What is a reasonable amount of time that Jessica spends running every day?
A.
36 minutes
B.
120 minutes
C.
84 minutes
D.
60 minutes
Answer:
36mimutes
Step-by-step explanation:
Use < >, or = to compare the following decimals.
(a) 0.91
0.98
D
D>
(b) 9.07 [ 9.3
?.
(c) 0,90 [ 0.9
Answer:
0.32, 0.45, 0.76.
Step-by-step explanation:
so first you would use your < >,= signs and compare all of them until you have eliminated ALL but one (so 0.91<0.98 this is because 0.98 is close to 1 whole than 0.91) and you would continue this explanation for so on
If the Cable Company offers cable for $110 a month but gives a 10%
discount for new customers. Find the cost for the new customers. (SHOW
ALL WORK)